GSoC 2012 NS-3 LTE MAC scheduler: FD TBFQ, TD TBFQ
authorDizhi Zhou <dizhi.zhou@gmail.com>
Sun, 05 Aug 2012 21:33:37 -0300
changeset 8872 7bd735928839
parent 8871 eed3430864af
child 8873 620a25c7b45e
GSoC 2012 NS-3 LTE MAC scheduler: FD TBFQ, TD TBFQ
src/lte/model/eps-bearer.cc
src/lte/model/eps-bearer.h
src/lte/model/fdtbfq-ff-mac-scheduler.cc
src/lte/model/fdtbfq-ff-mac-scheduler.h
src/lte/model/tdtbfq-ff-mac-scheduler.cc
src/lte/model/tdtbfq-ff-mac-scheduler.h
src/lte/test/lte-test-fdtbfq-ff-mac-scheduler.cc
src/lte/test/lte-test-fdtbfq-ff-mac-scheduler.h
src/lte/test/lte-test-tdtbfq-ff-mac-scheduler.cc
src/lte/test/lte-test-tdtbfq-ff-mac-scheduler.h
src/lte/wscript
--- a/src/lte/model/eps-bearer.cc	Sun Jul 01 21:17:35 2012 -0300
+++ b/src/lte/model/eps-bearer.cc	Sun Aug 05 21:33:37 2012 -0300
@@ -38,6 +38,12 @@
 {
 }
 
+EpsBearer::EpsBearer (Qci x, struct GbrQosInformation y)
+  : qci (x),gbrQosInfo (y)
+{
+}
+
+
 bool
 EpsBearer::IsGbr () const
 {
--- a/src/lte/model/eps-bearer.h	Sun Jul 01 21:17:35 2012 -0300
+++ b/src/lte/model/eps-bearer.h	Sun Aug 05 21:33:37 2012 -0300
@@ -88,6 +88,8 @@
    */
   EpsBearer (Qci x);
 
+  EpsBearer (Qci x, GbrQosInformation y);
+
   /**
    *
    * @return true if the EPS Bearer is a Guaranteed Bit Rate bearer, false otherwise
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/model/fdtbfq-ff-mac-scheduler.cc	Sun Aug 05 21:33:37 2012 -0300
@@ -0,0 +1,1430 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>
+ *         Dizhi Zhou <dizhi.zhou@gmail.com>
+ */
+
+#ifdef __FreeBSD__
+#define log2(x) (log(x) / M_LN2)
+#endif /* __FreeBSD__ */
+
+#include <ns3/log.h>
+#include <ns3/pointer.h>
+
+#include <ns3/simulator.h>
+#include <ns3/lte-amc.h>
+#include <ns3/fdtbfq-ff-mac-scheduler.h>
+
+NS_LOG_COMPONENT_DEFINE ("FdTbfqFfMacScheduler");
+
+namespace ns3 {
+
+int FdTbfqType0AllocationRbg[4] = {
+  10,       // RGB size 1
+  26,       // RGB size 2
+  63,       // RGB size 3
+  110       // RGB size 4
+};  // see table 7.1.6.1-1 of 36.213
+
+
+NS_OBJECT_ENSURE_REGISTERED (FdTbfqFfMacScheduler);
+
+
+
+class FdTbfqSchedulerMemberCschedSapProvider : public FfMacCschedSapProvider
+{
+public:
+  FdTbfqSchedulerMemberCschedSapProvider (FdTbfqFfMacScheduler* scheduler);
+
+  // inherited from FfMacCschedSapProvider
+  virtual void CschedCellConfigReq (const struct CschedCellConfigReqParameters& params);
+  virtual void CschedUeConfigReq (const struct CschedUeConfigReqParameters& params);
+  virtual void CschedLcConfigReq (const struct CschedLcConfigReqParameters& params);
+  virtual void CschedLcReleaseReq (const struct CschedLcReleaseReqParameters& params);
+  virtual void CschedUeReleaseReq (const struct CschedUeReleaseReqParameters& params);
+
+private:
+  FdTbfqSchedulerMemberCschedSapProvider ();
+  FdTbfqFfMacScheduler* m_scheduler;
+};
+
+FdTbfqSchedulerMemberCschedSapProvider::FdTbfqSchedulerMemberCschedSapProvider ()
+{
+}
+
+FdTbfqSchedulerMemberCschedSapProvider::FdTbfqSchedulerMemberCschedSapProvider (FdTbfqFfMacScheduler* scheduler) : m_scheduler (scheduler)
+{
+}
+
+
+void
+FdTbfqSchedulerMemberCschedSapProvider::CschedCellConfigReq (const struct CschedCellConfigReqParameters& params)
+{
+  m_scheduler->DoCschedCellConfigReq (params);
+}
+
+void
+FdTbfqSchedulerMemberCschedSapProvider::CschedUeConfigReq (const struct CschedUeConfigReqParameters& params)
+{
+  m_scheduler->DoCschedUeConfigReq (params);
+}
+
+
+void
+FdTbfqSchedulerMemberCschedSapProvider::CschedLcConfigReq (const struct CschedLcConfigReqParameters& params)
+{
+  m_scheduler->DoCschedLcConfigReq (params);
+}
+
+void
+FdTbfqSchedulerMemberCschedSapProvider::CschedLcReleaseReq (const struct CschedLcReleaseReqParameters& params)
+{
+  m_scheduler->DoCschedLcReleaseReq (params);
+}
+
+void
+FdTbfqSchedulerMemberCschedSapProvider::CschedUeReleaseReq (const struct CschedUeReleaseReqParameters& params)
+{
+  m_scheduler->DoCschedUeReleaseReq (params);
+}
+
+
+
+
+class FdTbfqSchedulerMemberSchedSapProvider : public FfMacSchedSapProvider
+{
+public:
+  FdTbfqSchedulerMemberSchedSapProvider (FdTbfqFfMacScheduler* scheduler);
+
+  // inherited from FfMacSchedSapProvider
+  virtual void SchedDlRlcBufferReq (const struct SchedDlRlcBufferReqParameters& params);
+  virtual void SchedDlPagingBufferReq (const struct SchedDlPagingBufferReqParameters& params);
+  virtual void SchedDlMacBufferReq (const struct SchedDlMacBufferReqParameters& params);
+  virtual void SchedDlTriggerReq (const struct SchedDlTriggerReqParameters& params);
+  virtual void SchedDlRachInfoReq (const struct SchedDlRachInfoReqParameters& params);
+  virtual void SchedDlCqiInfoReq (const struct SchedDlCqiInfoReqParameters& params);
+  virtual void SchedUlTriggerReq (const struct SchedUlTriggerReqParameters& params);
+  virtual void SchedUlNoiseInterferenceReq (const struct SchedUlNoiseInterferenceReqParameters& params);
+  virtual void SchedUlSrInfoReq (const struct SchedUlSrInfoReqParameters& params);
+  virtual void SchedUlMacCtrlInfoReq (const struct SchedUlMacCtrlInfoReqParameters& params);
+  virtual void SchedUlCqiInfoReq (const struct SchedUlCqiInfoReqParameters& params);
+
+
+private:
+  FdTbfqSchedulerMemberSchedSapProvider ();
+  FdTbfqFfMacScheduler* m_scheduler;
+};
+
+
+
+FdTbfqSchedulerMemberSchedSapProvider::FdTbfqSchedulerMemberSchedSapProvider ()
+{
+}
+
+
+FdTbfqSchedulerMemberSchedSapProvider::FdTbfqSchedulerMemberSchedSapProvider (FdTbfqFfMacScheduler* scheduler)
+  : m_scheduler (scheduler)
+{
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedDlRlcBufferReq (const struct SchedDlRlcBufferReqParameters& params)
+{
+  m_scheduler->DoSchedDlRlcBufferReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedDlPagingBufferReq (const struct SchedDlPagingBufferReqParameters& params)
+{
+  m_scheduler->DoSchedDlPagingBufferReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedDlMacBufferReq (const struct SchedDlMacBufferReqParameters& params)
+{
+  m_scheduler->DoSchedDlMacBufferReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedDlTriggerReq (const struct SchedDlTriggerReqParameters& params)
+{
+  m_scheduler->DoSchedDlTriggerReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedDlRachInfoReq (const struct SchedDlRachInfoReqParameters& params)
+{
+  m_scheduler->DoSchedDlRachInfoReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedDlCqiInfoReq (const struct SchedDlCqiInfoReqParameters& params)
+{
+  m_scheduler->DoSchedDlCqiInfoReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedUlTriggerReq (const struct SchedUlTriggerReqParameters& params)
+{
+  m_scheduler->DoSchedUlTriggerReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedUlNoiseInterferenceReq (const struct SchedUlNoiseInterferenceReqParameters& params)
+{
+  m_scheduler->DoSchedUlNoiseInterferenceReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedUlSrInfoReq (const struct SchedUlSrInfoReqParameters& params)
+{
+  m_scheduler->DoSchedUlSrInfoReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedUlMacCtrlInfoReq (const struct SchedUlMacCtrlInfoReqParameters& params)
+{
+  m_scheduler->DoSchedUlMacCtrlInfoReq (params);
+}
+
+void
+FdTbfqSchedulerMemberSchedSapProvider::SchedUlCqiInfoReq (const struct SchedUlCqiInfoReqParameters& params)
+{
+  m_scheduler->DoSchedUlCqiInfoReq (params);
+}
+
+
+
+
+
+FdTbfqFfMacScheduler::FdTbfqFfMacScheduler ()
+  :   m_cschedSapUser (0),
+    m_schedSapUser (0),
+    m_nextRntiUl (0),
+	bankSize(0)
+{
+  m_amc = CreateObject <LteAmc> ();
+  m_cschedSapProvider = new FdTbfqSchedulerMemberCschedSapProvider (this);
+  m_schedSapProvider = new FdTbfqSchedulerMemberSchedSapProvider (this);
+}
+
+FdTbfqFfMacScheduler::~FdTbfqFfMacScheduler ()
+{
+  NS_LOG_FUNCTION (this);
+}
+
+void
+FdTbfqFfMacScheduler::DoDispose ()
+{
+  NS_LOG_FUNCTION (this);
+  delete m_cschedSapProvider;
+  delete m_schedSapProvider;
+}
+
+TypeId
+FdTbfqFfMacScheduler::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::FdTbfqFfMacScheduler")
+    .SetParent<FfMacScheduler> ()
+    .AddConstructor<FdTbfqFfMacScheduler> ()
+    .AddAttribute ("CqiTimerThreshold",
+                   "The number of TTIs a CQI is valid (default 1000 - 1 sec.)",
+                   UintegerValue (1000),
+                   MakeUintegerAccessor (&FdTbfqFfMacScheduler::m_cqiTimersThreshold),
+                   MakeUintegerChecker<uint32_t> ())
+    ;
+  return tid;
+}
+
+
+
+void
+FdTbfqFfMacScheduler::SetFfMacCschedSapUser (FfMacCschedSapUser* s)
+{
+  m_cschedSapUser = s;
+}
+
+void
+FdTbfqFfMacScheduler::SetFfMacSchedSapUser (FfMacSchedSapUser* s)
+{
+  m_schedSapUser = s;
+}
+
+FfMacCschedSapProvider*
+FdTbfqFfMacScheduler::GetFfMacCschedSapProvider ()
+{
+  return m_cschedSapProvider;
+}
+
+FfMacSchedSapProvider*
+FdTbfqFfMacScheduler::GetFfMacSchedSapProvider ()
+{
+  return m_schedSapProvider;
+}
+
+void
+FdTbfqFfMacScheduler::DoCschedCellConfigReq (const struct FfMacCschedSapProvider::CschedCellConfigReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // Read the subset of parameters used
+  m_cschedCellConfig = params;
+  FfMacCschedSapUser::CschedUeConfigCnfParameters cnf;
+  cnf.m_result = SUCCESS;
+  m_cschedSapUser->CschedUeConfigCnf (cnf);
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoCschedUeConfigReq (const struct FfMacCschedSapProvider::CschedUeConfigReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << " RNTI " << params.m_rnti << " txMode " << (uint16_t)params.m_transmissionMode);
+  std::map <uint16_t,uint8_t>::iterator it = m_uesTxMode.find (params.m_rnti);
+  if (it==m_uesTxMode.end ())
+  {
+    m_uesTxMode.insert (std::pair <uint16_t, double> (params.m_rnti, params.m_transmissionMode));
+  }
+  else
+  {
+    (*it).second = params.m_transmissionMode;
+  }
+  return;
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoCschedLcConfigReq (const struct FfMacCschedSapProvider::CschedLcConfigReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << " New LC, rnti: "  << params.m_rnti);
+
+  std::map <uint16_t, fdtbfqsFlowPerf_t>::iterator it;
+  for (uint16_t i = 0; i < params.m_logicalChannelConfigList.size (); i++)
+    {
+      it = m_flowStatsDl.find (params.m_rnti);
+
+      if (it == m_flowStatsDl.end ())
+        {
+          uint64_t mbrDlInBytes = params.m_logicalChannelConfigList.at(i).m_eRabMaximulBitrateDl / 8;   // byte/s
+          uint64_t mbrUlInBytes = params.m_logicalChannelConfigList.at(i).m_eRabMaximulBitrateUl / 8;   // byte/s
+
+          fdtbfqsFlowPerf_t flowStatsDl;
+          flowStatsDl.flowStart = Simulator::Now ();
+		  flowStatsDl.packetArrivalRate = 0;
+          flowStatsDl.tokenGenerationRate =  mbrDlInBytes;
+          flowStatsDl.tokenPoolSize = 0;
+          flowStatsDl.maxTokenPoolSize = 1;
+          flowStatsDl.counter = 0;
+          flowStatsDl.burstCredit = 625000; // bytes
+          flowStatsDl.debtLimit = -625000; // bytes
+          flowStatsDl.creditableThreshold = 0;
+          m_flowStatsDl.insert (std::pair<uint16_t, fdtbfqsFlowPerf_t> (params.m_rnti, flowStatsDl));
+          fdtbfqsFlowPerf_t flowStatsUl;
+          flowStatsUl.flowStart = Simulator::Now ();
+		  flowStatsUl.packetArrivalRate = 0;
+          flowStatsUl.tokenGenerationRate = mbrUlInBytes;
+          flowStatsUl.tokenPoolSize = 0;
+          flowStatsUl.maxTokenPoolSize = 1;
+          flowStatsUl.counter = 0;
+          flowStatsUl.burstCredit = 625000;  // bytes
+          flowStatsUl.debtLimit = -625000;  // bytes
+          flowStatsUl.creditableThreshold = 0;
+          m_flowStatsUl.insert (std::pair<uint16_t, fdtbfqsFlowPerf_t> (params.m_rnti, flowStatsUl));
+
+		  NS_LOG_DEBUG(" UE "<<params.m_rnti<<" MaximulBitrateDl  "<<params.m_logicalChannelConfigList.at(i).m_eRabMaximulBitrateDl << " gbrDlInbytes "<<mbrDlInBytes);
+        }
+      else
+        {
+          NS_LOG_ERROR ("RNTI already exists");
+        }
+    }
+
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoCschedLcReleaseReq (const struct FfMacCschedSapProvider::CschedLcReleaseReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoCschedUeReleaseReq (const struct FfMacCschedSapProvider::CschedUeReleaseReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+
+void
+FdTbfqFfMacScheduler::DoSchedDlRlcBufferReq (const struct FfMacSchedSapProvider::SchedDlRlcBufferReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << params.m_rnti << (uint32_t) params.m_logicalChannelIdentity);
+  // API generated by RLC for updating RLC parameters on a LC (tx and retx queues)
+
+  std::map <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator it;
+
+  LteFlowId_t flow (params.m_rnti, params.m_logicalChannelIdentity);
+
+  it =  m_rlcBufferReq.find (flow);
+
+  if (it == m_rlcBufferReq.end ())
+    {
+      m_rlcBufferReq.insert (std::pair <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters> (flow, params));
+    }
+  else
+    {
+      (*it).second = params;
+    }
+
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedDlPagingBufferReq (const struct FfMacSchedSapProvider::SchedDlPagingBufferReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedDlMacBufferReq (const struct FfMacSchedSapProvider::SchedDlMacBufferReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+int
+FdTbfqFfMacScheduler::GetRbgSize (int dlbandwidth)
+{
+  for (int i = 0; i < 4; i++)
+    {
+      if (dlbandwidth < FdTbfqType0AllocationRbg[i])
+        {
+          return (i + 1);
+        }
+    }
+
+  return (-1);
+}
+
+
+int 
+FdTbfqFfMacScheduler::LcActivePerFlow (uint16_t rnti)
+{
+  std::map <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator it;
+  int lcActive = 0;
+  for (it = m_rlcBufferReq.begin (); it != m_rlcBufferReq.end (); it++)
+    {
+      if (((*it).first.m_rnti == rnti) && (((*it).second.m_rlcTransmissionQueueSize > 0)
+                                           || ((*it).second.m_rlcRetransmissionQueueSize > 0)
+                                           || ((*it).second.m_rlcStatusPduSize > 0) ))
+        {
+          lcActive++;
+        }
+      if ((*it).first.m_rnti > rnti)
+        {
+          break;
+        }
+    }
+  return (lcActive);
+
+}
+
+
+void
+FdTbfqFfMacScheduler::DoSchedDlTriggerReq (const struct FfMacSchedSapProvider::SchedDlTriggerReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << " Frame no. " << (params.m_sfnSf >> 4) << " subframe no. " << (0xF & params.m_sfnSf));
+  // API generated by RLC for triggering the scheduling of a DL subframe
+
+
+  // evaluate the relative channel quality indicator for each UE per each RBG 
+  // (since we are using allocation type 0 the small unit of allocation is RBG)
+  // Resource allocation type 0 (see sec 7.1.6.1 of 36.213)
+  RefreshDlCqiMaps ();
+
+  // update token pool, counter and bank size
+  std::map <uint16_t, fdtbfqsFlowPerf_t>::iterator itStats;
+  for (itStats = m_flowStatsDl.begin (); itStats != m_flowStatsDl.end (); itStats++)
+    {
+      if ( (*itStats).second.tokenGenerationRate/1000 +  (*itStats).second.tokenPoolSize > (*itStats).second.maxTokenPoolSize )    
+	    {
+          (*itStats).second.counter +=  (*itStats).second.tokenGenerationRate/1000 - ( (*itStats).second.maxTokenPoolSize -  (*itStats).second.tokenPoolSize );
+		  (*itStats).second.tokenPoolSize = (*itStats).second.maxTokenPoolSize;
+          bankSize += (*itStats).second.tokenGenerationRate/1000 - ( (*itStats).second.maxTokenPoolSize -  (*itStats).second.tokenPoolSize );
+	    }
+	  else
+	    {
+          (*itStats).second.tokenPoolSize += (*itStats).second.tokenGenerationRate/1000;
+	    }
+    }
+
+  int rbgSize = GetRbgSize (m_cschedCellConfig.m_dlBandwidth);
+  int rbgNum = m_cschedCellConfig.m_dlBandwidth / rbgSize;
+  std::map <uint16_t, std::vector <uint16_t> > allocationMap;
+  std::set <uint16_t> allocatedRnti;   // store UEs which are already assigned RBGs
+  std::set <uint8_t> allocatedRbg;  // store RBGs which are already allocated to UE
+
+  int totalRbg = 0;
+  while (totalRbg < rbgNum)
+    {
+      // select UE with largest metric
+      std::map <uint16_t, fdtbfqsFlowPerf_t>::iterator it;
+      std::map <uint16_t, fdtbfqsFlowPerf_t>::iterator itMax = m_flowStatsDl.end ();
+	  double metricMax;
+      bool firstRnti = true;
+      for (it = m_flowStatsDl.begin (); it != m_flowStatsDl.end (); it++)
+	    {
+          if (LcActivePerFlow ((*it).first) == 0)
+		    {
+			  continue;
+		    }
+
+		  std::set <uint16_t>::iterator rnti;
+          rnti = allocatedRnti.find((*it).first);
+		  if (rnti != allocatedRnti.end())  //  already allocated RBGs to this UE
+		    {
+			  continue;
+		    }
+
+		  double metric = ( ( (double)(*it).second.counter ) / ( (double)(*it).second.tokenGenerationRate ) );
+
+		  if (firstRnti == true)
+		    {
+			  metricMax = metric;
+			  itMax = it;
+			  firstRnti = false;
+			  continue;
+		    }
+		  if (metric > metricMax)
+            {
+              metricMax = metric;
+              itMax = it;
+            }
+	    } // end for m_flowStatsDl
+
+	  if (itMax == m_flowStatsDl.end())
+	    {
+           // all UEs are allocated RBG
+           break;
+	    }
+
+	  // mark this UE as "allocated"
+      allocatedRnti.insert((*itMax).first);
+     
+	  // calculate the maximum number of byte that the scheduler can assigned to this UE
+      uint32_t budget = 0;
+	  if ( bankSize > 0 )
+	    {
+	      budget = (*itMax).second.counter - (*itMax).second.debtLimit;
+		  if ( budget > (*itMax).second.burstCredit )
+		    budget = (*itMax).second.burstCredit;
+		  if ( budget > bankSize )
+			budget = bankSize;
+	    }
+	  budget = budget + (*itMax).second.tokenPoolSize;
+
+	  // calcualte how much bytes this UE acutally need
+	  if (budget == 0)
+	    {
+	      // there are no tokens for this UE
+		  continue;
+	    }
+      else 
+	    {	
+		  // calculate rlc buffer size
+		  uint32_t rlcBufSize;
+          uint8_t  lcid;
+          std::map<LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator itRlcBuf;
+          for (itRlcBuf = m_rlcBufferReq.begin (); itRlcBuf != m_rlcBufferReq.end (); itRlcBuf++)
+	        {
+              if ( (*itRlcBuf).first.m_rnti == (*itMax).first )
+                lcid = (*itRlcBuf).first.m_lcId;
+	        }
+          LteFlowId_t flow ((*itMax).first, lcid);
+          itRlcBuf = m_rlcBufferReq.find (flow);
+          if (itRlcBuf!=m_rlcBufferReq.end ())
+	            rlcBufSize = (*itRlcBuf).second.m_rlcTransmissionQueueSize + (*itRlcBuf).second.m_rlcRetransmissionQueueSize + (*itRlcBuf).second.m_rlcStatusPduSize;
+		  if ( budget > rlcBufSize )
+		  	budget = rlcBufSize;
+        }
+ 
+
+      // assign RBGs to this UE 
+      uint32_t bytesTxed = 0;
+	  uint32_t bytesTxedTmp = 0;
+	  int rbgIndex;
+      while ( bytesTxed <= budget )
+	    {
+          totalRbg++;
+
+	      std::map <uint16_t,SbMeasResult_s>::iterator itCqi;
+          itCqi = m_a30CqiRxed.find ((*itMax).first);
+          std::map <uint16_t,uint8_t>::iterator itTxMode;
+          itTxMode = m_uesTxMode.find ((*itMax).first);
+          if (itTxMode == m_uesTxMode.end())
+            {
+              NS_FATAL_ERROR ("No Transmission Mode info on user " << (*it).first);
+            }
+          int nLayer = TransmissionModesLayers::TxMode2LayerNum ((*itTxMode).second);
+
+		  // find RBG with largest achievableRate
+	      double achievableRateMax = 0.0;
+	      rbgIndex = rbgNum;
+		  for (int k = 0; k < rbgNum; k++)
+		    {
+	     	  std::set <uint8_t>::iterator rbg;
+              rbg = allocatedRbg.find(k);
+		      if (rbg != allocatedRbg.end())  // RBGs are already allocated to this UE
+			    continue;
+
+              std::vector <uint8_t> sbCqi;
+              if (itCqi == m_a30CqiRxed.end ())
+                {
+                   for (uint8_t k = 0; k < nLayer; k++)
+                     {
+                       sbCqi.push_back (1);  // start with lowest value
+                     }
+                }
+              else
+                {
+                  sbCqi = (*itCqi).second.m_higherLayerSelected.at (k).m_sbCqi;
+                }
+              uint8_t cqi1 = sbCqi.at(0);
+              uint8_t cqi2 = 1;
+              if (sbCqi.size () > 1)
+                {
+                  cqi2 = sbCqi.at(1);
+                }
+          
+              if ((cqi1 > 0)||(cqi2 > 0)) // CQI == 0 means "out of range" (see table 7.2.3-1 of 36.213)
+                {
+                  if (LcActivePerFlow ((*itMax).first) > 0)
+                    {
+                      // this UE has data to transmit
+		              double achievableRate = 0.0;
+                      for (uint8_t j = 0; j < nLayer; j++) 
+                        {
+                          uint8_t mcs = 0; 
+                          if (sbCqi.size () > j)
+                            {                       
+                              mcs = m_amc->GetMcsFromCqi (sbCqi.at (j));
+                            }
+                          else
+                            {
+                              // no info on this subband -> worst MCS
+                              mcs = 0;
+                            }
+                          achievableRate += ((m_amc->GetTbSizeFromMcs (mcs, rbgSize) / 8) / 0.001); // = TB size / TTI
+                        }
+
+	         		  if ( achievableRate > achievableRateMax )
+			        	{
+				          achievableRateMax = achievableRate;
+				          rbgIndex = k;
+				        }
+				    } // end of LcActivePerFlow
+			    }
+		    }  // end of for rbgNum
+
+		  if ( rbgIndex == rbgNum)  // impossible
+		    {
+				// all RBGs are already assigned
+				totalRbg = rbgNum;
+				break;
+		    }
+		  else
+		    {
+	            // mark this UE as "allocated"
+                allocatedRbg.insert(rbgIndex);
+		    }
+
+          // assign this RBG to UE
+          std::map <uint16_t, std::vector <uint16_t> >::iterator itMap;
+          itMap = allocationMap.find ((*itMax).first);
+          uint16_t RbgPerRnti;
+          if (itMap == allocationMap.end ())
+            {
+              // insert new element
+              std::vector <uint16_t> tempMap;
+              tempMap.push_back (rbgIndex);
+              allocationMap.insert (std::pair <uint16_t, std::vector <uint16_t> > ((*itMax).first, tempMap));
+              itMap = allocationMap.find ((*itMax).first);  // point itMap to the first RBGs assigned to this UE
+            }
+          else
+            {
+              (*itMap).second.push_back (rbgIndex);
+            }
+
+          RbgPerRnti = (*itMap).second.size();
+
+          // calculate tb size
+          std::vector <uint8_t> worstCqi (2, 15);
+          if (itCqi != m_a30CqiRxed.end ())
+            {
+              for (uint16_t k = 0; k < (*itMap).second.size (); k++)
+                {
+                  if ((*itCqi).second.m_higherLayerSelected.size () > (*itMap).second.at (k))
+                    {
+                      for (uint8_t j = 0; j < nLayer; j++) 
+                        {
+                          if ((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.size ()> j)
+                            {
+                              if (((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.at (j)) < worstCqi.at (j))
+                                {
+                                  worstCqi.at (j) = ((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.at (j));
+                                }
+                            }
+                          else
+                            {
+                              // no CQI for this layer of this suband -> worst one
+                              worstCqi.at (j) = 1;
+                            }
+                        }
+                    }
+                  else
+                    {
+                      for (uint8_t j = 0; j < nLayer; j++)
+                        {
+                          worstCqi.at (j) = 1; // try with lowest MCS in RBG with no info on channel
+                        }
+                    }
+                }
+            }
+          else
+            {
+              for (uint8_t j = 0; j < nLayer; j++)
+                {
+                  worstCqi.at (j) = 1; // try with lowest MCS in RBG with no info on channel
+                }
+            }
+
+		  bytesTxedTmp = bytesTxed;
+          bytesTxed = 0;
+		  for (uint8_t j = 0; j < nLayer; j++)
+            {
+              int tbSize = (m_amc->GetTbSizeFromMcs (m_amc->GetMcsFromCqi (worstCqi.at (j)), RbgPerRnti * rbgSize) / 8); // (size of TB in bytes according to table 7.1.7.2.1-1 of 36.213) 
+              bytesTxed += tbSize;
+            }
+
+	    } // end of while()
+
+        // remove and unmark last RBG assigned to UE
+		if ( bytesTxed > budget )
+		{
+          std::map <uint16_t, std::vector <uint16_t> >::iterator itMap;
+          itMap = allocationMap.find ((*itMax).first);
+          (*itMap).second.pop_back();
+          allocatedRbg.erase(rbgIndex);
+		  bytesTxed = bytesTxedTmp;  // recovery bytesTxed
+          totalRbg--;
+		}
+
+        // update UE stats
+        if ( bytesTxed <= (*itMax).second.tokenPoolSize )
+          {
+	        (*itMax).second.tokenPoolSize -= bytesTxed;
+		  }
+		else
+		  {
+		    (*itMax).second.counter = (*itMax).second.counter - ( bytesTxed -  (*itMax).second.tokenPoolSize );
+		    (*itMax).second.tokenPoolSize = 0;
+		    if (bankSize <= ( bytesTxed -  (*itMax).second.tokenPoolSize ))
+			  bankSize = 0;
+		    else 
+		      bankSize = bankSize - ( bytesTxed -  (*itMax).second.tokenPoolSize );
+		  }
+    } // end of RBGs
+
+  // generate the transmission opportunities by grouping the RBGs of the same RNTI and
+  // creating the correspondent DCIs
+  FfMacSchedSapUser::SchedDlConfigIndParameters ret;
+  std::map <uint16_t, std::vector <uint16_t> >::iterator itMap = allocationMap.begin ();
+
+  while (itMap != allocationMap.end ())
+    {
+      // create new BuildDataListElement_s for this LC
+      BuildDataListElement_s newEl;
+      newEl.m_rnti = (*itMap).first;
+      // create the DlDciListElement_s
+      DlDciListElement_s newDci;
+      std::vector <struct RlcPduListElement_s> newRlcPduLe;
+      newDci.m_rnti = (*itMap).first;
+
+      uint16_t lcActives = LcActivePerFlow ((*itMap).first);
+//       NS_LOG_DEBUG (this << "Allocate user " << newEl.m_rnti << " rbg " << lcActives);
+      uint16_t RgbPerRnti = (*itMap).second.size ();
+      std::map <uint16_t,SbMeasResult_s>::iterator itCqi;
+      itCqi = m_a30CqiRxed.find ((*itMap).first);
+      std::map <uint16_t,uint8_t>::iterator itTxMode;
+      itTxMode = m_uesTxMode.find ((*itMap).first);
+      if (itTxMode == m_uesTxMode.end())
+        {
+          NS_FATAL_ERROR ("No Transmission Mode info on user " << (*itMap).first);
+        }
+      int nLayer = TransmissionModesLayers::TxMode2LayerNum ((*itTxMode).second);
+      std::vector <uint8_t> worstCqi (2, 15);
+      if (itCqi != m_a30CqiRxed.end ())
+        {
+          for (uint16_t k = 0; k < (*itMap).second.size (); k++)
+            {
+              if ((*itCqi).second.m_higherLayerSelected.size () > (*itMap).second.at (k))
+                {
+                 //NS_LOG_DEBUG (this << " RBG " << (*itMap).second.at (k) << " CQI " << (uint16_t)((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.at (0)) );
+                  for (uint8_t j = 0; j < nLayer; j++) 
+                    {
+                      if ((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.size ()> j)
+                        {
+                          if (((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.at (j)) < worstCqi.at (j))
+                            {
+                              worstCqi.at (j) = ((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.at (j));
+                            }
+                        }
+                      else
+                        {
+                          // no CQI for this layer of this suband -> worst one
+                          worstCqi.at (j) = 1;
+                        }
+                        //NS_LOG_DEBUG (this << " RBG " << (*itMap).second.at (k) << " CQI " <<(uint16_t)j <<" "<< (uint16_t)worstCqi.at(j));
+                    }
+                }
+              else
+                {
+                  for (uint8_t j = 0; j < nLayer; j++)
+                    {
+                      worstCqi.at (j) = 1; // try with lowest MCS in RBG with no info on channel
+                    }
+                }
+            }
+        }
+      else
+        {
+          for (uint8_t j = 0; j < nLayer; j++)
+            {
+              worstCqi.at (j) = 1; // try with lowest MCS in RBG with no info on channel
+            }
+        }
+//       NS_LOG_DEBUG (this << " CQI " << (uint16_t)worstCqi);
+      uint32_t bytesTxed = 0;
+      for (uint8_t j = 0; j < nLayer; j++)
+        {
+          newDci.m_mcs.push_back (m_amc->GetMcsFromCqi (worstCqi.at (j)));
+          int tbSize = (m_amc->GetTbSizeFromMcs (newDci.m_mcs.at (j), RgbPerRnti * rbgSize) / 8); // (size of TB in bytes according to table 7.1.7.2.1-1 of 36.213) 
+         // NS_LOG_DEBUG ( Simulator::Now() << " Allocateuser " << newEl.m_rnti << " tbSize  "<< tbSize << " RBG " << RgbPerRnti << " mcs " << (uint16_t) newDci.m_mcs.at (j)  << " cqi " << (uint16_t)worstCqi.at(j));
+          newDci.m_tbsSize.push_back (tbSize);
+          bytesTxed += tbSize;
+          //NS_LOG_DEBUG (this << " MCS " << m_amc->GetMcsFromCqi (worstCqi.at (j)));
+        }
+
+      newDci.m_resAlloc = 0;  // only allocation type 0 at this stage
+      newDci.m_rbBitmap = 0; // TBD (32 bit bitmap see 7.1.6 of 36.213)
+      uint32_t rbgMask = 0;
+      //for (uint16_t k = 0; k < (*itMap).second.size (); k++)
+      for (uint16_t k = 0; k < RgbPerRnti; k++)
+        {
+          rbgMask = rbgMask + (0x1 << (*itMap).second.at (k));
+//           NS_LOG_DEBUG (this << " Allocated PRB " << (*itMap).second.at (k));
+        }
+      newDci.m_rbBitmap = rbgMask; // (32 bit bitmap see 7.1.6 of 36.213)
+
+      // create the rlc PDUs -> equally divide resources among actives LCs
+      std::map <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator itBufReq;
+      for (itBufReq = m_rlcBufferReq.begin (); itBufReq != m_rlcBufferReq.end (); itBufReq++)
+        {
+          if (((*itBufReq).first.m_rnti == (*itMap).first) &&
+            (((*itBufReq).second.m_rlcTransmissionQueueSize > 0)
+              || ((*itBufReq).second.m_rlcRetransmissionQueueSize > 0)
+              || ((*itBufReq).second.m_rlcStatusPduSize > 0) ))
+            {
+              for (uint8_t j = 0; j < nLayer; j++)
+                {
+                  RlcPduListElement_s newRlcEl;
+                  newRlcEl.m_logicalChannelIdentity = (*itBufReq).first.m_lcId;
+                  newRlcEl.m_size = newDci.m_tbsSize.at (j) / lcActives;
+                  //NS_LOG_DEBUG ( Simulator::Now() << " LCID " << (uint32_t) newRlcEl.m_logicalChannelIdentity << " size " << newRlcEl.m_size << " layer " << (uint16_t)j);
+				  
+                  newRlcPduLe.push_back (newRlcEl);
+                  UpdateDlRlcBufferInfo (newDci.m_rnti, newRlcEl.m_logicalChannelIdentity, newRlcEl.m_size);
+                }
+            }
+          if ((*itBufReq).first.m_rnti > (*itMap).first)
+            {
+              break;
+            }
+        }
+      newDci.m_ndi.push_back (1); // TBD (new data indicator)
+      newDci.m_rv.push_back (0); // TBD (redundancy version)
+
+      newEl.m_dci = newDci;
+      // ...more parameters -> ingored in this version
+
+      newEl.m_rlcPduList.push_back (newRlcPduLe);
+      ret.m_buildDataList.push_back (newEl);
+
+      itMap++;
+    } // end while allocation
+  ret.m_nrOfPdcchOfdmSymbols = 1;   // TODO: check correct value according the DCIs txed
+
+  m_schedSapUser->SchedDlConfigInd (ret);
+
+ 
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedDlRachInfoReq (const struct FfMacSchedSapProvider::SchedDlRachInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedDlCqiInfoReq (const struct FfMacSchedSapProvider::SchedDlCqiInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+
+  for (unsigned int i = 0; i < params.m_cqiList.size (); i++)
+    {
+      if ( params.m_cqiList.at (i).m_cqiType == CqiListElement_s::P10 )
+        {
+          // wideband CQI reporting
+          std::map <uint16_t,uint8_t>::iterator it;
+          uint16_t rnti = params.m_cqiList.at (i).m_rnti;
+          it = m_p10CqiRxed.find (rnti);
+          if (it == m_p10CqiRxed.end ())
+            {
+              // create the new entry
+              m_p10CqiRxed.insert ( std::pair<uint16_t, uint8_t > (rnti, params.m_cqiList.at (i).m_wbCqi.at (0)) ); // only codeword 0 at this stage (SISO)
+              // generate correspondent timer
+              m_p10CqiTimers.insert ( std::pair<uint16_t, uint32_t > (rnti, m_cqiTimersThreshold));
+            }
+          else
+            {
+              // update the CQI value and refresh correspondent timer
+              (*it).second = params.m_cqiList.at (i).m_wbCqi.at (0);
+              // update correspondent timer
+              std::map <uint16_t,uint32_t>::iterator itTimers;
+              itTimers = m_p10CqiTimers.find (rnti);
+              (*itTimers).second = m_cqiTimersThreshold;
+            }
+        }
+      else if ( params.m_cqiList.at (i).m_cqiType == CqiListElement_s::A30 )
+        {
+          // subband CQI reporting high layer configured
+          std::map <uint16_t,SbMeasResult_s>::iterator it;
+          uint16_t rnti = params.m_cqiList.at (i).m_rnti;
+          it = m_a30CqiRxed.find (rnti);
+          if (it == m_a30CqiRxed.end ())
+            {
+              // create the new entry
+              m_a30CqiRxed.insert ( std::pair<uint16_t, SbMeasResult_s > (rnti, params.m_cqiList.at (i).m_sbMeasResult) );
+              m_a30CqiTimers.insert ( std::pair<uint16_t, uint32_t > (rnti, m_cqiTimersThreshold));
+            }
+          else
+            {
+              // update the CQI value and refresh correspondent timer
+              (*it).second = params.m_cqiList.at (i).m_sbMeasResult;
+              std::map <uint16_t,uint32_t>::iterator itTimers;
+              itTimers = m_a30CqiTimers.find (rnti);
+              (*itTimers).second = m_cqiTimersThreshold;
+            }
+        }
+      else
+        {
+          NS_LOG_ERROR (this << " CQI type unknown");
+        }
+    }
+
+  return;
+}
+
+
+double
+FdTbfqFfMacScheduler::EstimateUlSinr (uint16_t rnti, uint16_t rb)
+{
+  std::map <uint16_t, std::vector <double> >::iterator itCqi = m_ueCqi.find (rnti);
+  if (itCqi == m_ueCqi.end ())
+    {
+      // no cqi info about this UE
+      return (NO_SINR);
+
+    }
+  else
+    {
+      // take the average SINR value among the available
+      double sinrSum = 0;
+      int sinrNum = 0;
+      for (uint32_t i = 0; i < m_cschedCellConfig.m_ulBandwidth; i++)
+        {
+          double sinr = (*itCqi).second.at (i);
+          if (sinr != NO_SINR)
+            {
+              sinrSum += sinr;
+              sinrNum++;
+            }
+        }
+      double estimatedSinr = sinrSum / (double)sinrNum;
+      // store the value
+      (*itCqi).second.at (rb) = estimatedSinr;
+      return (estimatedSinr);
+    }
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedUlTriggerReq (const struct FfMacSchedSapProvider::SchedUlTriggerReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << " UL - Frame no. " << (params.m_sfnSf >> 4) << " subframe no. " << (0xF & params.m_sfnSf));
+ 
+  RefreshUlCqiMaps ();
+
+  std::map <uint16_t,uint32_t>::iterator it; 
+  int nflows = 0;
+
+  for (it = m_ceBsrRxed.begin (); it != m_ceBsrRxed.end (); it++)
+    {
+      // remove old entries of this UE-LC
+      if ((*it).second > 0)
+        {
+          nflows++;
+        }
+    }
+
+  if (nflows == 0)
+    {
+      return ; // no flows to be scheduled
+    }
+
+
+  // Divide the resource equally among the active users
+  int rbPerFlow = m_cschedCellConfig.m_ulBandwidth / nflows;
+  if (rbPerFlow == 0)
+    {
+      rbPerFlow = 1;              // at least 1 rbg per flow (till available resource)
+    }
+  int rbAllocated = 0;
+
+  FfMacSchedSapUser::SchedUlConfigIndParameters ret;
+  std::vector <uint16_t> rbgAllocationMap;
+  //std::map <uint16_t, fdtbfqsFlowPerf_t>::iterator itStats;
+  if (m_nextRntiUl != 0)
+    {
+      for (it = m_ceBsrRxed.begin (); it != m_ceBsrRxed.end (); it++)
+        {
+          if ((*it).first == m_nextRntiUl)
+            {
+              break;
+            }
+        }
+      if (it == m_ceBsrRxed.end ())
+        {
+          NS_LOG_ERROR (this << " no user found");
+        }
+    }
+  else
+    {
+      it = m_ceBsrRxed.begin ();
+      m_nextRntiUl = (*it).first;
+    }
+  do
+    {
+      if (rbAllocated + rbPerFlow > m_cschedCellConfig.m_ulBandwidth)
+        {
+          // limit to physical resources last resource assignment
+          rbPerFlow = m_cschedCellConfig.m_ulBandwidth - rbAllocated;
+        }
+     
+      UlDciListElement_s uldci;
+      uldci.m_rnti = (*it).first;
+      uldci.m_rbStart = rbAllocated;
+      uldci.m_rbLen = rbPerFlow;
+      std::map <uint16_t, std::vector <double> >::iterator itCqi = m_ueCqi.find ((*it).first);
+      int cqi = 0;
+      if (itCqi == m_ueCqi.end ())
+        {
+          // no cqi info about this UE
+          uldci.m_mcs = 0; // MCS 0 -> UL-AMC TBD
+//           NS_LOG_DEBUG (this << " UE does not have ULCQI " << (*it).first );
+        }
+      else
+        {
+          // take the lowest CQI value (worst RB)
+          double minSinr = (*itCqi).second.at (uldci.m_rbStart);
+          if (minSinr == NO_SINR)
+            {
+              minSinr = EstimateUlSinr ((*it).first, uldci.m_rbStart);
+            }
+          for (uint16_t i = uldci.m_rbStart; i < uldci.m_rbStart + uldci.m_rbLen; i++)
+            {
+//               NS_LOG_DEBUG (this << " UE " << (*it).first << " has SINR " << (*itCqi).second.at(i));
+              double sinr = (*itCqi).second.at (i);
+              if (sinr == NO_SINR)
+                {
+                  sinr = EstimateUlSinr ((*it).first, i);
+                }
+              if ((*itCqi).second.at (i) < minSinr)
+                {
+                  minSinr = (*itCqi).second.at (i);
+                }
+            }
+
+          // translate SINR -> cqi: WILD ACK: same as DL
+          double s = log2 ( 1 + (
+                              pow (10, minSinr / 10 )  /
+                              ( (-log (5.0 * 0.00005 )) / 1.5) ));
+          cqi = m_amc->GetCqiFromSpectralEfficiency (s);
+          if (cqi == 0)
+            {
+              it++;
+              if (it == m_ceBsrRxed.end ())
+                {
+                  // restart from the first
+                  it = m_ceBsrRxed.begin ();
+                }
+              continue; // CQI == 0 means "out of range" (see table 7.2.3-1 of 36.213)
+            }
+          uldci.m_mcs = m_amc->GetMcsFromCqi (cqi);
+//           NS_LOG_DEBUG (this << " UE " <<  (*it).first << " minsinr " << minSinr << " -> mcs " << (uint16_t)uldci.m_mcs);
+
+        }
+      
+      rbAllocated += rbPerFlow;
+      // store info on allocation for managing ul-cqi interpretation
+      for (int i = 0; i < rbPerFlow; i++)
+        {
+          rbgAllocationMap.push_back ((*it).first);
+        }
+      uldci.m_tbSize = (m_amc->GetTbSizeFromMcs (uldci.m_mcs, rbPerFlow) / 8);
+       NS_LOG_DEBUG (this <<" "<<Simulator::Now()<< " UE " << (*it).first << " startPRB " << (uint32_t)uldci.m_rbStart << " nPRB " << (uint32_t)uldci.m_rbLen << " CQI " << cqi << " MCS " << (uint32_t)uldci.m_mcs << " TBsize " << uldci.m_tbSize << " RbAlloc " << rbAllocated);
+      UpdateUlRlcBufferInfo (uldci.m_rnti, uldci.m_tbSize);
+      uldci.m_ndi = 1;
+      uldci.m_cceIndex = 0;
+      uldci.m_aggrLevel = 1;
+      uldci.m_ueTxAntennaSelection = 3; // antenna selection OFF
+      uldci.m_hopping = false;
+      uldci.m_n2Dmrs = 0;
+      uldci.m_tpc = 0; // no power control
+      uldci.m_cqiRequest = false; // only period CQI at this stage
+      uldci.m_ulIndex = 0; // TDD parameter
+      uldci.m_dai = 1; // TDD parameter
+      uldci.m_freqHopping = 0;
+      uldci.m_pdcchPowerOffset = 0; // not used
+      ret.m_dciList.push_back (uldci);
+
+      it++;
+      if (it == m_ceBsrRxed.end ())
+        {
+          // restart from the first
+          it = m_ceBsrRxed.begin ();
+        }
+      if (rbAllocated == m_cschedCellConfig.m_ulBandwidth)
+        {
+          // Stop allocation: no more PRBs
+          m_nextRntiUl = (*it).first;
+          break;
+        }
+    }
+  while ((*it).first != m_nextRntiUl);
+
+  m_allocationMaps.insert (std::pair <uint16_t, std::vector <uint16_t> > (params.m_sfnSf, rbgAllocationMap));
+  m_schedSapUser->SchedUlConfigInd (ret);
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedUlNoiseInterferenceReq (const struct FfMacSchedSapProvider::SchedUlNoiseInterferenceReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedUlSrInfoReq (const struct FfMacSchedSapProvider::SchedUlSrInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedUlMacCtrlInfoReq (const struct FfMacSchedSapProvider::SchedUlMacCtrlInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+
+  std::map <uint16_t,uint32_t>::iterator it;
+  
+  for (unsigned int i = 0; i < params.m_macCeList.size (); i++)
+  {
+    if ( params.m_macCeList.at (i).m_macCeType == MacCeListElement_s::BSR )
+    {
+      // buffer status report
+      uint16_t rnti = params.m_macCeList.at (i).m_rnti;
+      it = m_ceBsrRxed.find (rnti);
+      if (it == m_ceBsrRxed.end ())
+      {
+        // create the new entry
+        uint8_t bsrId = params.m_macCeList.at (i).m_macCeValue.m_bufferStatus.at (0);
+        int buffer = BufferSizeLevelBsr::BsrId2BufferSize (bsrId);
+        m_ceBsrRxed.insert ( std::pair<uint16_t, uint32_t > (rnti, buffer)); // only 1 buffer status is working now
+      }
+      else
+      {
+        // update the CQI value
+        (*it).second = BufferSizeLevelBsr::BsrId2BufferSize (params.m_macCeList.at (i).m_macCeValue.m_bufferStatus.at (0));
+      }
+    }
+  }
+  
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::DoSchedUlCqiInfoReq (const struct FfMacSchedSapProvider::SchedUlCqiInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+//   NS_LOG_DEBUG (this << " RX SFNID " << params.m_sfnSf);
+  // retrieve the allocation for this subframe
+  std::map <uint16_t, std::vector <uint16_t> >::iterator itMap;
+  std::map <uint16_t, std::vector <double> >::iterator itCqi;
+  itMap = m_allocationMaps.find (params.m_sfnSf);
+  if (itMap == m_allocationMaps.end ())
+    {
+      //NS_LOG_DEBUG (this << " Does not find info on allocation, size : " << m_allocationMaps.size ());
+      return;
+    }
+  for (uint32_t i = 0; i < (*itMap).second.size (); i++)
+    {
+      // convert from fixed point notation Sxxxxxxxxxxx.xxx to double
+//       NS_LOG_INFO (this << " i " << i << " size " << params.m_ulCqi.m_sinr.size () << " mapSIze " << (*itMap).second.size ());
+      double sinr = LteFfConverter::fpS11dot3toDouble (params.m_ulCqi.m_sinr.at (i));
+      //NS_LOG_DEBUG (this << " UE " << (*itMap).second.at (i) << " SINRfp " << params.m_ulCqi.m_sinr.at (i) << " sinrdb " << sinr);
+      itCqi = m_ueCqi.find ((*itMap).second.at (i));
+      if (itCqi == m_ueCqi.end ())
+        {
+          // create a new entry
+          std::vector <double> newCqi;
+          for (uint32_t j = 0; j < m_cschedCellConfig.m_ulBandwidth; j++)
+            {
+              if (i == j)
+                {
+                  newCqi.push_back (sinr);
+                }
+              else
+                {
+                  // initialize with NO_SINR value.
+                  newCqi.push_back (NO_SINR);
+                }
+
+            }
+          m_ueCqi.insert (std::pair <uint16_t, std::vector <double> > ((*itMap).second.at (i), newCqi));
+          // generate correspondent timer
+          m_ueCqiTimers.insert (std::pair <uint16_t, uint32_t > ((*itMap).second.at (i), m_cqiTimersThreshold));
+        }
+      else
+        {
+          // update the value
+          (*itCqi).second.at (i) = sinr;
+          // update correspondent timer
+          std::map <uint16_t, uint32_t>::iterator itTimers;
+          itTimers = m_ueCqiTimers.find ((*itMap).second.at (i));
+          (*itTimers).second = m_cqiTimersThreshold;
+          
+        }
+
+    }
+  // remove obsolete info on allocation
+  m_allocationMaps.erase (itMap);
+
+  return;
+}
+
+void
+FdTbfqFfMacScheduler::RefreshDlCqiMaps(void)
+{
+  // refresh DL CQI P01 Map
+  std::map <uint16_t,uint32_t>::iterator itP10 = m_p10CqiTimers.begin ();
+  while (itP10!=m_p10CqiTimers.end ())
+    {
+//       NS_LOG_INFO (this << " P10-CQI for user " << (*itP10).first << " is " << (uint32_t)(*itP10).second << " thr " << (uint32_t)m_cqiTimersThreshold);
+      if ((*itP10).second == 0)
+        {
+          // delete correspondent entries
+          std::map <uint16_t,uint8_t>::iterator itMap = m_p10CqiRxed.find ((*itP10).first);
+          NS_ASSERT_MSG (itMap != m_p10CqiRxed.end (), " Does not find CQI report for user " << (*itP10).first);
+          NS_LOG_INFO (this << " P10-CQI exired for user " << (*itP10).first);
+          m_p10CqiRxed.erase (itMap);
+          std::map <uint16_t,uint32_t>::iterator temp = itP10;
+          itP10++;
+          m_p10CqiTimers.erase (temp);
+        }
+      else
+        {
+          (*itP10).second--;
+          itP10++;
+        }
+    }
+  
+  // refresh DL CQI A30 Map
+  std::map <uint16_t,uint32_t>::iterator itA30 = m_a30CqiTimers.begin ();
+  while (itA30!=m_a30CqiTimers.end ())
+    {
+//       NS_LOG_INFO (this << " A30-CQI for user " << (*itA30).first << " is " << (uint32_t)(*itA30).second << " thr " << (uint32_t)m_cqiTimersThreshold);
+      if ((*itA30).second == 0)
+        {
+          // delete correspondent entries
+          std::map <uint16_t,SbMeasResult_s>::iterator itMap = m_a30CqiRxed.find ((*itA30).first);
+          NS_ASSERT_MSG (itMap != m_a30CqiRxed.end (), " Does not find CQI report for user " << (*itA30).first);
+          NS_LOG_INFO (this << " A30-CQI exired for user " << (*itA30).first);
+          m_a30CqiRxed.erase (itMap);
+          std::map <uint16_t,uint32_t>::iterator temp = itA30;
+          itA30++;
+          m_a30CqiTimers.erase (temp);
+        }
+      else
+        {
+          (*itA30).second--;
+          itA30++;
+        }
+    }
+    
+    return;
+}
+
+
+void
+FdTbfqFfMacScheduler::RefreshUlCqiMaps(void)
+{
+  // refresh UL CQI  Map
+  std::map <uint16_t,uint32_t>::iterator itUl = m_ueCqiTimers.begin ();
+  while (itUl!=m_ueCqiTimers.end ())
+    {
+//       NS_LOG_INFO (this << " UL-CQI for user " << (*itUl).first << " is " << (uint32_t)(*itUl).second << " thr " << (uint32_t)m_cqiTimersThreshold);
+      if ((*itUl).second == 0)
+        {
+          // delete correspondent entries
+          std::map <uint16_t, std::vector <double> >::iterator itMap = m_ueCqi.find ((*itUl).first);
+          NS_ASSERT_MSG (itMap != m_ueCqi.end (), " Does not find CQI report for user " << (*itUl).first);
+          NS_LOG_INFO (this << " UL-CQI exired for user " << (*itUl).first);
+          (*itMap).second.clear ();
+          m_ueCqi.erase (itMap);
+          std::map <uint16_t,uint32_t>::iterator temp = itUl;
+          itUl++;
+          m_ueCqiTimers.erase (temp);
+        }
+      else
+        {
+          (*itUl).second--;
+          itUl++;
+        }
+    }
+    
+    return;
+}
+
+void
+FdTbfqFfMacScheduler::UpdateDlRlcBufferInfo (uint16_t rnti, uint8_t lcid, uint16_t size)
+{
+  std::map<LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator it;
+  LteFlowId_t flow (rnti, lcid);
+  it = m_rlcBufferReq.find (flow);
+  if (it!=m_rlcBufferReq.end ())
+    {
+       //NS_LOG_DEBUG (this << " UE " << rnti << " LC " << (uint16_t)lcid << " txqueue " << (*it).second.m_rlcTransmissionQueueSize << " retxqueue " << (*it).second.m_rlcRetransmissionQueueSize << " status " << (*it).second.m_rlcStatusPduSize << " decrease " << size);
+      // Update queues: RLC tx order Status, ReTx, Tx
+      // Update status queue
+      if ((*it).second.m_rlcStatusPduSize <= size)
+        {
+          size -= (*it).second.m_rlcStatusPduSize;
+          (*it).second.m_rlcStatusPduSize = 0;
+        }
+      else
+        {
+          (*it).second.m_rlcStatusPduSize -= size;
+          return;
+        }
+      // update retransmission queue  
+      if ((*it).second.m_rlcRetransmissionQueueSize <= size)
+        {
+          size -= (*it).second.m_rlcRetransmissionQueueSize;
+          (*it).second.m_rlcRetransmissionQueueSize = 0;
+        }
+      else
+        {
+          (*it).second.m_rlcRetransmissionQueueSize -= size;
+          return;
+        }
+      // update transmission queue
+      if ((*it).second.m_rlcTransmissionQueueSize <= size)
+        {
+          size -= (*it).second.m_rlcTransmissionQueueSize;
+          (*it).second.m_rlcTransmissionQueueSize = 0;
+        }
+      else
+        {
+          (*it).second.m_rlcTransmissionQueueSize -= size;
+          return;
+        }
+    }
+  else
+    {
+      NS_LOG_ERROR (this << " Does not find DL RLC Buffer Report of UE " << rnti);
+    }
+}
+
+void
+FdTbfqFfMacScheduler::UpdateUlRlcBufferInfo (uint16_t rnti, uint16_t size)
+{
+  
+  
+  std::map <uint16_t,uint32_t>::iterator it = m_ceBsrRxed.find (rnti);
+  if (it!=m_ceBsrRxed.end ())
+    {
+//       NS_LOG_DEBUG (this << " UE " << rnti << " size " << size << " BSR " << (*it).second);      
+      if ((*it).second >= size)
+        {
+          (*it).second -= size;
+        }
+      else
+        {
+          (*it).second = 0;
+        }
+    }
+  else
+    {
+      NS_LOG_ERROR (this << " Does not find BSR report info of UE " << rnti);
+    }
+  
+}
+
+void
+FdTbfqFfMacScheduler::TransmissionModeConfigurationUpdate (uint16_t rnti, uint8_t txMode)
+{
+  NS_LOG_FUNCTION (this << " RNTI " << rnti << " txMode " << (uint16_t)txMode);
+  FfMacCschedSapUser::CschedUeConfigUpdateIndParameters params;
+  params.m_rnti = rnti;
+  params.m_transmissionMode = txMode;
+  m_cschedSapUser->CschedUeConfigUpdateInd (params);
+}
+
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/model/fdtbfq-ff-mac-scheduler.h	Sun Aug 05 21:33:37 2012 -0300
@@ -0,0 +1,230 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>
+ *         Dizhi Zhou <dizhi.zhou@gmail.com>
+ */
+
+#ifndef FDTBFQ_FF_MAC_SCHEDULER_H
+#define FDTBFQ_FF_MAC_SCHEDULER_H
+
+#include <ns3/lte-common.h>
+#include <ns3/ff-mac-csched-sap.h>
+#include <ns3/ff-mac-sched-sap.h>
+#include <ns3/ff-mac-scheduler.h>
+#include <vector>
+#include <map>
+#include <set>
+#include <ns3/nstime.h>
+#include <ns3/lte-amc.h>
+
+
+// value for SINR outside the range defined by FF-API, used to indicate that there
+// is no CQI for this element
+#define NO_SINR -5000
+
+namespace ns3 {
+
+
+struct fdtbfqsFlowPerf_t
+{
+  Time flowStart;
+  uint64_t packetArrivalRate;     // packet arrival rate( byte/s)
+  uint64_t tokenGenerationRate;   // token generation rate ( byte/s )
+  uint32_t tokenPoolSize;         // current size of token pool (byte)
+  uint32_t maxTokenPoolSize;      // maximum size of token pool (byte)
+  int counter;                    // the number of token borrow or given to token bank
+  uint32_t burstCredit;           // the maximum number of tokens connection i can borrow from the bank each time
+  int debtLimit;                  // counter threshold that the flow cannot further borrow tokens from bank
+  uint32_t creditableThreshold;   // the flow cannot borrow token from bank until the number of token it has deposited to bank reaches this threshold
+};
+
+
+/**
+ * \ingroup ff-api
+ * \defgroup FF-API FdTbfqFfMacScheduler
+ */
+/**
+ * \ingroup FdTbfqFfMacScheduler
+ * \brief Implements the SCHED SAP and CSCHED SAP for a Token Bank Fair Queue scheduler
+ *
+ * This class implements the interface defined by the FfMacScheduler abstract class
+ */
+
+class FdTbfqFfMacScheduler : public FfMacScheduler
+{
+public:
+  /**
+   * \brief Constructor
+   *
+   * Creates the MAC Scheduler interface implementation
+   */
+  FdTbfqFfMacScheduler ();
+
+  /**
+   * Destructor
+   */
+  virtual ~FdTbfqFfMacScheduler ();
+
+  // inherited from Object
+  virtual void DoDispose (void);
+  static TypeId GetTypeId (void);
+
+  // inherited from FfMacScheduler
+  virtual void SetFfMacCschedSapUser (FfMacCschedSapUser* s);
+  virtual void SetFfMacSchedSapUser (FfMacSchedSapUser* s);
+  virtual FfMacCschedSapProvider* GetFfMacCschedSapProvider ();
+  virtual FfMacSchedSapProvider* GetFfMacSchedSapProvider ();
+
+  friend class FdTbfqSchedulerMemberCschedSapProvider;
+  friend class FdTbfqSchedulerMemberSchedSapProvider;
+  
+  void TransmissionModeConfigurationUpdate (uint16_t rnti, uint8_t txMode);
+
+private:
+  //
+  // Implementation of the CSCHED API primitives
+  // (See 4.1 for description of the primitives)
+  //
+
+  void DoCschedCellConfigReq (const struct FfMacCschedSapProvider::CschedCellConfigReqParameters& params);
+
+  void DoCschedUeConfigReq (const struct FfMacCschedSapProvider::CschedUeConfigReqParameters& params);
+
+  void DoCschedLcConfigReq (const struct FfMacCschedSapProvider::CschedLcConfigReqParameters& params);
+
+  void DoCschedLcReleaseReq (const struct FfMacCschedSapProvider::CschedLcReleaseReqParameters& params);
+
+  void DoCschedUeReleaseReq (const struct FfMacCschedSapProvider::CschedUeReleaseReqParameters& params);
+
+  //
+  // Implementation of the SCHED API primitives
+  // (See 4.2 for description of the primitives)
+  //
+
+  void DoSchedDlRlcBufferReq (const struct FfMacSchedSapProvider::SchedDlRlcBufferReqParameters& params);
+
+  void DoSchedDlPagingBufferReq (const struct FfMacSchedSapProvider::SchedDlPagingBufferReqParameters& params);
+
+  void DoSchedDlMacBufferReq (const struct FfMacSchedSapProvider::SchedDlMacBufferReqParameters& params);
+
+  void DoSchedDlTriggerReq (const struct FfMacSchedSapProvider::SchedDlTriggerReqParameters& params);
+
+  void DoSchedDlRachInfoReq (const struct FfMacSchedSapProvider::SchedDlRachInfoReqParameters& params);
+
+  void DoSchedDlCqiInfoReq (const struct FfMacSchedSapProvider::SchedDlCqiInfoReqParameters& params);
+
+  void DoSchedUlTriggerReq (const struct FfMacSchedSapProvider::SchedUlTriggerReqParameters& params);
+
+  void DoSchedUlNoiseInterferenceReq (const struct FfMacSchedSapProvider::SchedUlNoiseInterferenceReqParameters& params);
+
+  void DoSchedUlSrInfoReq (const struct FfMacSchedSapProvider::SchedUlSrInfoReqParameters& params);
+
+  void DoSchedUlMacCtrlInfoReq (const struct FfMacSchedSapProvider::SchedUlMacCtrlInfoReqParameters& params);
+
+  void DoSchedUlCqiInfoReq (const struct FfMacSchedSapProvider::SchedUlCqiInfoReqParameters& params);
+
+
+  int GetRbgSize (int dlbandwidth);
+
+  int LcActivePerFlow (uint16_t rnti);
+
+  double EstimateUlSinr (uint16_t rnti, uint16_t rb);
+  
+  void RefreshDlCqiMaps(void);
+  void RefreshUlCqiMaps(void);
+  
+  void UpdateDlRlcBufferInfo (uint16_t rnti, uint8_t lcid, uint16_t size);
+  void UpdateUlRlcBufferInfo (uint16_t rnti, uint16_t size);
+  Ptr<LteAmc> m_amc;
+
+  /*
+   * Vectors of UE's LC info
+  */
+  std::map <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters> m_rlcBufferReq;
+
+
+  /*
+  * Map of UE statistics (per RNTI basis) in downlink
+  */
+  std::map <uint16_t, fdtbfqsFlowPerf_t> m_flowStatsDl; 
+
+  /*
+  * Map of UE statistics (per RNTI basis)
+  */
+  std::map <uint16_t, fdtbfqsFlowPerf_t> m_flowStatsUl;
+
+
+  /*
+  * Map of UE's DL CQI P01 received
+  */
+  std::map <uint16_t,uint8_t> m_p10CqiRxed;
+  /*
+  * Map of UE's timers on DL CQI P01 received
+  */
+  std::map <uint16_t,uint32_t> m_p10CqiTimers;
+
+  /*
+  * Map of UE's DL CQI A30 received
+  */
+  std::map <uint16_t,SbMeasResult_s> m_a30CqiRxed;
+  /*
+  * Map of UE's timers on DL CQI A30 received
+  */
+  std::map <uint16_t,uint32_t> m_a30CqiTimers;
+
+  /*
+  * Map of previous allocated UE per RBG
+  * (used to retrieve info from UL-CQI)
+  */
+  std::map <uint16_t, std::vector <uint16_t> > m_allocationMaps;
+
+  /*
+  * Map of UEs' UL-CQI per RBG
+  */
+  std::map <uint16_t, std::vector <double> > m_ueCqi;
+  /*
+  * Map of UEs' timers on UL-CQI per RBG
+  */
+  std::map <uint16_t, uint32_t> m_ueCqiTimers;
+
+  /*
+  * Map of UE's buffer status reports received
+  */
+  std::map <uint16_t,uint32_t> m_ceBsrRxed;
+
+  // MAC SAPs
+  FfMacCschedSapUser* m_cschedSapUser;
+  FfMacSchedSapUser* m_schedSapUser;
+  FfMacCschedSapProvider* m_cschedSapProvider;
+  FfMacSchedSapProvider* m_schedSapProvider;
+
+  // Internal parameters
+  FfMacCschedSapProvider::CschedCellConfigReqParameters m_cschedCellConfig;
+
+  uint16_t m_nextRntiUl; // RNTI of the next user to be served next scheduling in UL
+  
+  uint32_t m_cqiTimersThreshold; // # of TTIs for which a CQI canbe considered valid
+
+  std::map <uint16_t,uint8_t> m_uesTxMode; // txMode of the UEs
+
+  uint64_t bankSize;  // the number of bytes in token bank
+};
+
+} // namespace ns3
+
+#endif /* FDTBFQ_FF_MAC_SCHEDULER_H */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/model/tdtbfq-ff-mac-scheduler.cc	Sun Aug 05 21:33:37 2012 -0300
@@ -0,0 +1,1267 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>
+ *         Dizhi Zhou <dizhi.zhou@gmail.com>
+ */
+
+#ifdef __FreeBSD__
+#define log2(x) (log(x) / M_LN2)
+#endif /* __FreeBSD__ */
+
+#include <ns3/log.h>
+#include <ns3/pointer.h>
+
+#include <ns3/simulator.h>
+#include <ns3/lte-amc.h>
+#include <ns3/tdtbfq-ff-mac-scheduler.h>
+
+NS_LOG_COMPONENT_DEFINE ("TdTbfqFfMacScheduler");
+
+namespace ns3 {
+
+int TdTbfqType0AllocationRbg[4] = {
+  10,       // RGB size 1
+  26,       // RGB size 2
+  63,       // RGB size 3
+  110       // RGB size 4
+};  // see table 7.1.6.1-1 of 36.213
+
+
+NS_OBJECT_ENSURE_REGISTERED (TdTbfqFfMacScheduler);
+
+
+
+class TdTbfqSchedulerMemberCschedSapProvider : public FfMacCschedSapProvider
+{
+public:
+  TdTbfqSchedulerMemberCschedSapProvider (TdTbfqFfMacScheduler* scheduler);
+
+  // inherited from FfMacCschedSapProvider
+  virtual void CschedCellConfigReq (const struct CschedCellConfigReqParameters& params);
+  virtual void CschedUeConfigReq (const struct CschedUeConfigReqParameters& params);
+  virtual void CschedLcConfigReq (const struct CschedLcConfigReqParameters& params);
+  virtual void CschedLcReleaseReq (const struct CschedLcReleaseReqParameters& params);
+  virtual void CschedUeReleaseReq (const struct CschedUeReleaseReqParameters& params);
+
+private:
+  TdTbfqSchedulerMemberCschedSapProvider ();
+  TdTbfqFfMacScheduler* m_scheduler;
+};
+
+TdTbfqSchedulerMemberCschedSapProvider::TdTbfqSchedulerMemberCschedSapProvider ()
+{
+}
+
+TdTbfqSchedulerMemberCschedSapProvider::TdTbfqSchedulerMemberCschedSapProvider (TdTbfqFfMacScheduler* scheduler) : m_scheduler (scheduler)
+{
+}
+
+
+void
+TdTbfqSchedulerMemberCschedSapProvider::CschedCellConfigReq (const struct CschedCellConfigReqParameters& params)
+{
+  m_scheduler->DoCschedCellConfigReq (params);
+}
+
+void
+TdTbfqSchedulerMemberCschedSapProvider::CschedUeConfigReq (const struct CschedUeConfigReqParameters& params)
+{
+  m_scheduler->DoCschedUeConfigReq (params);
+}
+
+
+void
+TdTbfqSchedulerMemberCschedSapProvider::CschedLcConfigReq (const struct CschedLcConfigReqParameters& params)
+{
+  m_scheduler->DoCschedLcConfigReq (params);
+}
+
+void
+TdTbfqSchedulerMemberCschedSapProvider::CschedLcReleaseReq (const struct CschedLcReleaseReqParameters& params)
+{
+  m_scheduler->DoCschedLcReleaseReq (params);
+}
+
+void
+TdTbfqSchedulerMemberCschedSapProvider::CschedUeReleaseReq (const struct CschedUeReleaseReqParameters& params)
+{
+  m_scheduler->DoCschedUeReleaseReq (params);
+}
+
+
+
+
+class TdTbfqSchedulerMemberSchedSapProvider : public FfMacSchedSapProvider
+{
+public:
+  TdTbfqSchedulerMemberSchedSapProvider (TdTbfqFfMacScheduler* scheduler);
+
+  // inherited from FfMacSchedSapProvider
+  virtual void SchedDlRlcBufferReq (const struct SchedDlRlcBufferReqParameters& params);
+  virtual void SchedDlPagingBufferReq (const struct SchedDlPagingBufferReqParameters& params);
+  virtual void SchedDlMacBufferReq (const struct SchedDlMacBufferReqParameters& params);
+  virtual void SchedDlTriggerReq (const struct SchedDlTriggerReqParameters& params);
+  virtual void SchedDlRachInfoReq (const struct SchedDlRachInfoReqParameters& params);
+  virtual void SchedDlCqiInfoReq (const struct SchedDlCqiInfoReqParameters& params);
+  virtual void SchedUlTriggerReq (const struct SchedUlTriggerReqParameters& params);
+  virtual void SchedUlNoiseInterferenceReq (const struct SchedUlNoiseInterferenceReqParameters& params);
+  virtual void SchedUlSrInfoReq (const struct SchedUlSrInfoReqParameters& params);
+  virtual void SchedUlMacCtrlInfoReq (const struct SchedUlMacCtrlInfoReqParameters& params);
+  virtual void SchedUlCqiInfoReq (const struct SchedUlCqiInfoReqParameters& params);
+
+
+private:
+  TdTbfqSchedulerMemberSchedSapProvider ();
+  TdTbfqFfMacScheduler* m_scheduler;
+};
+
+
+
+TdTbfqSchedulerMemberSchedSapProvider::TdTbfqSchedulerMemberSchedSapProvider ()
+{
+}
+
+
+TdTbfqSchedulerMemberSchedSapProvider::TdTbfqSchedulerMemberSchedSapProvider (TdTbfqFfMacScheduler* scheduler)
+  : m_scheduler (scheduler)
+{
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedDlRlcBufferReq (const struct SchedDlRlcBufferReqParameters& params)
+{
+  m_scheduler->DoSchedDlRlcBufferReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedDlPagingBufferReq (const struct SchedDlPagingBufferReqParameters& params)
+{
+  m_scheduler->DoSchedDlPagingBufferReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedDlMacBufferReq (const struct SchedDlMacBufferReqParameters& params)
+{
+  m_scheduler->DoSchedDlMacBufferReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedDlTriggerReq (const struct SchedDlTriggerReqParameters& params)
+{
+  m_scheduler->DoSchedDlTriggerReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedDlRachInfoReq (const struct SchedDlRachInfoReqParameters& params)
+{
+  m_scheduler->DoSchedDlRachInfoReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedDlCqiInfoReq (const struct SchedDlCqiInfoReqParameters& params)
+{
+  m_scheduler->DoSchedDlCqiInfoReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedUlTriggerReq (const struct SchedUlTriggerReqParameters& params)
+{
+  m_scheduler->DoSchedUlTriggerReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedUlNoiseInterferenceReq (const struct SchedUlNoiseInterferenceReqParameters& params)
+{
+  m_scheduler->DoSchedUlNoiseInterferenceReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedUlSrInfoReq (const struct SchedUlSrInfoReqParameters& params)
+{
+  m_scheduler->DoSchedUlSrInfoReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedUlMacCtrlInfoReq (const struct SchedUlMacCtrlInfoReqParameters& params)
+{
+  m_scheduler->DoSchedUlMacCtrlInfoReq (params);
+}
+
+void
+TdTbfqSchedulerMemberSchedSapProvider::SchedUlCqiInfoReq (const struct SchedUlCqiInfoReqParameters& params)
+{
+  m_scheduler->DoSchedUlCqiInfoReq (params);
+}
+
+
+
+
+
+TdTbfqFfMacScheduler::TdTbfqFfMacScheduler ()
+  :   m_cschedSapUser (0),
+    m_schedSapUser (0),
+    m_nextRntiUl (0),
+	bankSize(0)
+{
+  m_amc = CreateObject <LteAmc> ();
+  m_cschedSapProvider = new TdTbfqSchedulerMemberCschedSapProvider (this);
+  m_schedSapProvider = new TdTbfqSchedulerMemberSchedSapProvider (this);
+}
+
+TdTbfqFfMacScheduler::~TdTbfqFfMacScheduler ()
+{
+  NS_LOG_FUNCTION (this);
+}
+
+void
+TdTbfqFfMacScheduler::DoDispose ()
+{
+  NS_LOG_FUNCTION (this);
+  delete m_cschedSapProvider;
+  delete m_schedSapProvider;
+}
+
+TypeId
+TdTbfqFfMacScheduler::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("ns3::TdTbfqFfMacScheduler")
+    .SetParent<FfMacScheduler> ()
+    .AddConstructor<TdTbfqFfMacScheduler> ()
+    .AddAttribute ("CqiTimerThreshold",
+                   "The number of TTIs a CQI is valid (default 1000 - 1 sec.)",
+                   UintegerValue (1000),
+                   MakeUintegerAccessor (&TdTbfqFfMacScheduler::m_cqiTimersThreshold),
+                   MakeUintegerChecker<uint32_t> ())
+    ;
+  return tid;
+}
+
+
+
+void
+TdTbfqFfMacScheduler::SetFfMacCschedSapUser (FfMacCschedSapUser* s)
+{
+  m_cschedSapUser = s;
+}
+
+void
+TdTbfqFfMacScheduler::SetFfMacSchedSapUser (FfMacSchedSapUser* s)
+{
+  m_schedSapUser = s;
+}
+
+FfMacCschedSapProvider*
+TdTbfqFfMacScheduler::GetFfMacCschedSapProvider ()
+{
+  return m_cschedSapProvider;
+}
+
+FfMacSchedSapProvider*
+TdTbfqFfMacScheduler::GetFfMacSchedSapProvider ()
+{
+  return m_schedSapProvider;
+}
+
+void
+TdTbfqFfMacScheduler::DoCschedCellConfigReq (const struct FfMacCschedSapProvider::CschedCellConfigReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // Read the subset of parameters used
+  m_cschedCellConfig = params;
+  FfMacCschedSapUser::CschedUeConfigCnfParameters cnf;
+  cnf.m_result = SUCCESS;
+  m_cschedSapUser->CschedUeConfigCnf (cnf);
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoCschedUeConfigReq (const struct FfMacCschedSapProvider::CschedUeConfigReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << " RNTI " << params.m_rnti << " txMode " << (uint16_t)params.m_transmissionMode);
+  std::map <uint16_t,uint8_t>::iterator it = m_uesTxMode.find (params.m_rnti);
+  if (it==m_uesTxMode.end ())
+  {
+    m_uesTxMode.insert (std::pair <uint16_t, double> (params.m_rnti, params.m_transmissionMode));
+  }
+  else
+  {
+    (*it).second = params.m_transmissionMode;
+  }
+  return;
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoCschedLcConfigReq (const struct FfMacCschedSapProvider::CschedLcConfigReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << " New LC, rnti: "  << params.m_rnti);
+
+  std::map <uint16_t, tdtbfqsFlowPerf_t>::iterator it;
+  for (uint16_t i = 0; i < params.m_logicalChannelConfigList.size (); i++)
+    {
+      it = m_flowStatsDl.find (params.m_rnti);
+
+      if (it == m_flowStatsDl.end ())
+        {
+          // add rlc and pdcp header size in MBR
+          uint64_t mbrDlInBytes = params.m_logicalChannelConfigList.at(i).m_eRabMaximulBitrateDl / 8;   // byte/s
+          uint64_t mbrUlInBytes = params.m_logicalChannelConfigList.at(i).m_eRabMaximulBitrateUl / 8;   // byte/s
+
+          tdtbfqsFlowPerf_t flowStatsDl;
+          flowStatsDl.flowStart = Simulator::Now ();
+		  flowStatsDl.packetArrivalRate = 0;
+          flowStatsDl.tokenGenerationRate =  mbrDlInBytes;
+          flowStatsDl.tokenPoolSize = 0;
+          flowStatsDl.maxTokenPoolSize = 1;
+          flowStatsDl.counter = 0;
+          flowStatsDl.burstCredit = 625000; // bytes
+          flowStatsDl.debtLimit = -625000; // bytes
+          flowStatsDl.creditableThreshold = 0;
+          m_flowStatsDl.insert (std::pair<uint16_t, tdtbfqsFlowPerf_t> (params.m_rnti, flowStatsDl));
+          tdtbfqsFlowPerf_t flowStatsUl;
+          flowStatsUl.flowStart = Simulator::Now ();
+		  flowStatsUl.packetArrivalRate = 0;
+          flowStatsUl.tokenGenerationRate = mbrUlInBytes;
+          flowStatsUl.tokenPoolSize = 0;
+          flowStatsUl.maxTokenPoolSize = 1;
+          flowStatsUl.counter = 0;
+          flowStatsUl.burstCredit = 625000;  // bytes
+          flowStatsUl.debtLimit = -625000;  // bytes
+          flowStatsUl.creditableThreshold = 0;
+          m_flowStatsUl.insert (std::pair<uint16_t, tdtbfqsFlowPerf_t> (params.m_rnti, flowStatsUl));
+
+		  NS_LOG_DEBUG(" UE "<<params.m_rnti<<" MaximulBitrateDl  "<<params.m_logicalChannelConfigList.at(i).m_eRabMaximulBitrateDl << " gbrDlInbytes "<<mbrDlInBytes);
+        }
+      else
+        {
+          NS_LOG_ERROR ("RNTI already exists");
+        }
+    }
+
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoCschedLcReleaseReq (const struct FfMacCschedSapProvider::CschedLcReleaseReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoCschedUeReleaseReq (const struct FfMacCschedSapProvider::CschedUeReleaseReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+
+void
+TdTbfqFfMacScheduler::DoSchedDlRlcBufferReq (const struct FfMacSchedSapProvider::SchedDlRlcBufferReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << params.m_rnti << (uint32_t) params.m_logicalChannelIdentity);
+  // API generated by RLC for updating RLC parameters on a LC (tx and retx queues)
+
+  std::map <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator it;
+
+  LteFlowId_t flow (params.m_rnti, params.m_logicalChannelIdentity);
+
+  it =  m_rlcBufferReq.find (flow);
+
+  if (it == m_rlcBufferReq.end ())
+    {
+      m_rlcBufferReq.insert (std::pair <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters> (flow, params));
+    }
+  else
+    {
+      (*it).second = params;
+    }
+
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedDlPagingBufferReq (const struct FfMacSchedSapProvider::SchedDlPagingBufferReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedDlMacBufferReq (const struct FfMacSchedSapProvider::SchedDlMacBufferReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+int
+TdTbfqFfMacScheduler::GetRbgSize (int dlbandwidth)
+{
+  for (int i = 0; i < 4; i++)
+    {
+      if (dlbandwidth < TdTbfqType0AllocationRbg[i])
+        {
+          return (i + 1);
+        }
+    }
+
+  return (-1);
+}
+
+
+int 
+TdTbfqFfMacScheduler::LcActivePerFlow (uint16_t rnti)
+{
+  std::map <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator it;
+  int lcActive = 0;
+  for (it = m_rlcBufferReq.begin (); it != m_rlcBufferReq.end (); it++)
+    {
+      if (((*it).first.m_rnti == rnti) && (((*it).second.m_rlcTransmissionQueueSize > 0)
+                                           || ((*it).second.m_rlcRetransmissionQueueSize > 0)
+                                           || ((*it).second.m_rlcStatusPduSize > 0) ))
+        {
+          lcActive++;
+        }
+      if ((*it).first.m_rnti > rnti)
+        {
+          break;
+        }
+    }
+  return (lcActive);
+
+}
+
+
+void
+TdTbfqFfMacScheduler::DoSchedDlTriggerReq (const struct FfMacSchedSapProvider::SchedDlTriggerReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << " Frame no. " << (params.m_sfnSf >> 4) << " subframe no. " << (0xF & params.m_sfnSf));
+  // API generated by RLC for triggering the scheduling of a DL subframe
+
+
+  // evaluate the relative channel quality indicator for each UE per each RBG 
+  // (since we are using allocation type 0 the small unit of allocation is RBG)
+  // Resource allocation type 0 (see sec 7.1.6.1 of 36.213)
+  RefreshDlCqiMaps ();
+
+  // update token pool, counter and bank size
+  std::map <uint16_t, tdtbfqsFlowPerf_t>::iterator itStats;
+  for (itStats = m_flowStatsDl.begin (); itStats != m_flowStatsDl.end (); itStats++)
+    {
+      if ( (*itStats).second.tokenGenerationRate/1000 +  (*itStats).second.tokenPoolSize > (*itStats).second.maxTokenPoolSize )    
+	    {
+          (*itStats).second.counter +=  (*itStats).second.tokenGenerationRate/1000 - ( (*itStats).second.maxTokenPoolSize -  (*itStats).second.tokenPoolSize );
+		  (*itStats).second.tokenPoolSize = (*itStats).second.maxTokenPoolSize;
+          bankSize += (*itStats).second.tokenGenerationRate/1000 - ( (*itStats).second.maxTokenPoolSize -  (*itStats).second.tokenPoolSize );  
+	    }
+	  else
+	    {
+          (*itStats).second.tokenPoolSize += (*itStats).second.tokenGenerationRate/1000;
+	    }
+    }
+
+  int rbgSize = GetRbgSize (m_cschedCellConfig.m_dlBandwidth);
+  int rbgNum = m_cschedCellConfig.m_dlBandwidth / rbgSize;
+  std::map <uint16_t, std::vector <uint16_t> > allocationMap;
+
+  // select UE with largest metric
+  std::map <uint16_t, tdtbfqsFlowPerf_t>::iterator it;
+  std::map <uint16_t, tdtbfqsFlowPerf_t>::iterator itMax = m_flowStatsDl.end ();
+  double metricMax;
+  bool firstRnti = true;
+  for (it = m_flowStatsDl.begin (); it != m_flowStatsDl.end (); it++)
+    {
+      if (LcActivePerFlow ((*it).first) == 0)
+        {
+		  continue;
+		}
+
+	  double metric = ( ( (double)(*it).second.counter ) / ( (double)(*it).second.tokenGenerationRate ) );  
+
+	  if (firstRnti == true)
+	    {
+	       metricMax = metric;
+		   itMax = it;
+		   firstRnti = false;
+		   continue;
+	    }
+	  if (metric > metricMax)
+        {
+           metricMax = metric;
+           itMax = it;
+        }
+	} // end for m_flowStatsDl
+
+  if (itMax == m_flowStatsDl.end())
+    {
+      // no UE available for downlink 
+      return;
+    }
+  else
+    {
+      // assign all RBGs to this UE
+      std::vector <uint16_t> tempMap;
+	  for (int i = 0; i < rbgNum; i++)
+	    {
+          tempMap.push_back (i);
+	    }
+      allocationMap.insert (std::pair <uint16_t, std::vector <uint16_t> > ((*itMax).first, tempMap));
+    }
+
+  // generate the transmission opportunities by grouping the RBGs of the same RNTI and
+  // creating the correspondent DCIs
+  FfMacSchedSapUser::SchedDlConfigIndParameters ret;
+  std::map <uint16_t, std::vector <uint16_t> >::iterator itMap = allocationMap.begin ();
+
+  while (itMap != allocationMap.end ())
+    {
+      // create new BuildDataListElement_s for this LC
+      BuildDataListElement_s newEl;
+      newEl.m_rnti = (*itMap).first;
+      // create the DlDciListElement_s
+      DlDciListElement_s newDci;
+      std::vector <struct RlcPduListElement_s> newRlcPduLe;
+      newDci.m_rnti = (*itMap).first;
+
+      uint16_t lcActives = LcActivePerFlow ((*itMap).first);
+//       NS_LOG_DEBUG (this << "Allocate user " << newEl.m_rnti << " rbg " << lcActives);
+      uint16_t RgbPerRnti = (*itMap).second.size ();
+      std::map <uint16_t,SbMeasResult_s>::iterator itCqi;
+      itCqi = m_a30CqiRxed.find ((*itMap).first);
+      std::map <uint16_t,uint8_t>::iterator itTxMode;
+      itTxMode = m_uesTxMode.find ((*itMap).first);
+      if (itTxMode == m_uesTxMode.end())
+        {
+          NS_FATAL_ERROR ("No Transmission Mode info on user " << (*itMap).first);
+        }
+      int nLayer = TransmissionModesLayers::TxMode2LayerNum ((*itTxMode).second);
+      std::vector <uint8_t> worstCqi (2, 15);
+      if (itCqi != m_a30CqiRxed.end ())
+        {
+          for (uint16_t k = 0; k < (*itMap).second.size (); k++)
+            {
+              if ((*itCqi).second.m_higherLayerSelected.size () > (*itMap).second.at (k))
+                {
+                 //NS_LOG_DEBUG (this << " RBG " << (*itMap).second.at (k) << " CQI " << (uint16_t)((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.at (0)) );
+                  for (uint8_t j = 0; j < nLayer; j++) 
+                    {
+                      if ((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.size ()> j)
+                        {
+                          if (((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.at (j)) < worstCqi.at (j))
+                            {
+                              worstCqi.at (j) = ((*itCqi).second.m_higherLayerSelected.at ((*itMap).second.at (k)).m_sbCqi.at (j));
+                            }
+                        }
+                      else
+                        {
+                          // no CQI for this layer of this suband -> worst one
+                          worstCqi.at (j) = 1;
+                        }
+                        //NS_LOG_DEBUG (this << " RBG " << (*itMap).second.at (k) << " CQI " <<(uint16_t)j <<" "<< (uint16_t)worstCqi.at(j));
+                    }
+                }
+              else
+                {
+                  for (uint8_t j = 0; j < nLayer; j++)
+                    {
+                      worstCqi.at (j) = 1; // try with lowest MCS in RBG with no info on channel
+                    }
+                }
+            }
+        }
+      else
+        {
+          for (uint8_t j = 0; j < nLayer; j++)
+            {
+              worstCqi.at (j) = 1; // try with lowest MCS in RBG with no info on channel
+            }
+        }
+//       NS_LOG_DEBUG (this << " CQI " << (uint16_t)worstCqi);
+      uint32_t bytesTxed = 0;
+      for (uint8_t j = 0; j < nLayer; j++)
+        {
+          newDci.m_mcs.push_back (m_amc->GetMcsFromCqi (worstCqi.at (j)));
+          int tbSize = (m_amc->GetTbSizeFromMcs (newDci.m_mcs.at (j), RgbPerRnti * rbgSize) / 8); // (size of TB in bytes according to table 7.1.7.2.1-1 of 36.213) 
+         // NS_LOG_DEBUG ( Simulator::Now() << " Allocateuser " << newEl.m_rnti << " tbSize  "<< tbSize << " RBG " << RgbPerRnti << " mcs " << (uint16_t) newDci.m_mcs.at (j)  << " cqi " << (uint16_t)worstCqi.at(j));
+          newDci.m_tbsSize.push_back (tbSize);
+          bytesTxed += tbSize;
+          //NS_LOG_DEBUG (this << " MCS " << m_amc->GetMcsFromCqi (worstCqi.at (j)));
+        }
+
+      newDci.m_resAlloc = 0;  // only allocation type 0 at this stage
+      newDci.m_rbBitmap = 0; // TBD (32 bit bitmap see 7.1.6 of 36.213)
+      uint32_t rbgMask = 0;
+      //for (uint16_t k = 0; k < (*itMap).second.size (); k++)
+      for (uint16_t k = 0; k < RgbPerRnti; k++)
+        {
+          rbgMask = rbgMask + (0x1 << (*itMap).second.at (k));
+//           NS_LOG_DEBUG (this << " Allocated PRB " << (*itMap).second.at (k));
+        }
+      newDci.m_rbBitmap = rbgMask; // (32 bit bitmap see 7.1.6 of 36.213)
+
+      // create the rlc PDUs -> equally divide resources among actives LCs
+      std::map <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator itBufReq;
+      for (itBufReq = m_rlcBufferReq.begin (); itBufReq != m_rlcBufferReq.end (); itBufReq++)
+        {
+          if (((*itBufReq).first.m_rnti == (*itMap).first) &&
+            (((*itBufReq).second.m_rlcTransmissionQueueSize > 0)
+              || ((*itBufReq).second.m_rlcRetransmissionQueueSize > 0)
+              || ((*itBufReq).second.m_rlcStatusPduSize > 0) ))
+            {
+              for (uint8_t j = 0; j < nLayer; j++)
+                {
+                  RlcPduListElement_s newRlcEl;
+                  newRlcEl.m_logicalChannelIdentity = (*itBufReq).first.m_lcId;
+                  newRlcEl.m_size = newDci.m_tbsSize.at (j) / lcActives;
+                  //NS_LOG_DEBUG ( Simulator::Now() << " LCID " << (uint32_t) newRlcEl.m_logicalChannelIdentity << " size " << newRlcEl.m_size << " layer " << (uint16_t)j);
+				  
+                  newRlcPduLe.push_back (newRlcEl);
+                  UpdateDlRlcBufferInfo (newDci.m_rnti, newRlcEl.m_logicalChannelIdentity, newRlcEl.m_size);
+                }
+            }
+          if ((*itBufReq).first.m_rnti > (*itMap).first)
+            {
+              break;
+            }
+        }
+      newDci.m_ndi.push_back (1); // TBD (new data indicator)
+      newDci.m_rv.push_back (0); // TBD (redundancy version)
+
+      newEl.m_dci = newDci;
+      // ...more parameters -> ingored in this version
+
+      newEl.m_rlcPduList.push_back (newRlcPduLe);
+      ret.m_buildDataList.push_back (newEl);
+
+      // update UE stats
+      std::map <uint16_t, tdtbfqsFlowPerf_t>::iterator it;
+      it = m_flowStatsDl.find ((*itMap).first);
+      if (it != m_flowStatsDl.end ())
+        {
+          if ( bytesTxed <= (*it).second.tokenPoolSize )
+		    {
+			  (*it).second.tokenPoolSize -= bytesTxed;
+		    }
+		  else
+		    {
+			  (*it).second.counter = (*it).second.counter - ( bytesTxed -  (*it).second.tokenPoolSize );
+			  (*it).second.tokenPoolSize = 0;
+			  if (bankSize <= ( bytesTxed - (*it).second.tokenPoolSize ))
+				bankSize = 0;
+			  else 
+			    bankSize = bankSize - ( bytesTxed -  (*it).second.tokenPoolSize );
+		    }
+        }
+      else
+        {
+          NS_LOG_DEBUG (this << " No Stats for this allocated UE");
+        }
+
+      //NS_LOG_DEBUG (Simulator::Now() << " After UE " << (*it).first << " counter " << (*it).second.counter << " bank " << bankSize);
+
+      itMap++;
+    } // end while allocation
+  ret.m_nrOfPdcchOfdmSymbols = 1;   // TODO: check correct value according the DCIs txed
+
+
+  // update UEs stats
+  /*for (itStats = m_flowStatsDl.begin (); itStats != m_flowStatsDl.end (); itStats++)
+    {
+      (*itStats).second.totalBytesTransmitted += (*itStats).second.lastTtiBytesTrasmitted;
+      // update average throughput (see eq. 12.3 of Sec 12.3.1.2 of LTE – The UMTS Long Term Evolution, Ed Wiley)
+      (*itStats).second.lastAveragedThroughput = ((1.0 - (1.0 / m_timeWindow)) * (*itStats).second.lastAveragedThroughput) + ((1.0 / m_timeWindow) * (double)((*itStats).second.lastTtiBytesTrasmitted / 0.001));
+//       NS_LOG_DEBUG (this << " UE tot bytes " << (*itStats).second.totalBytesTransmitted);
+//       NS_LOG_DEBUG (this << " UE avg thr " << (*itStats).second.lastAveragedThroughput);
+      (*itStats).second.lastTtiBytesTrasmitted = 0;
+    }*/
+
+  m_schedSapUser->SchedDlConfigInd (ret);
+
+ 
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedDlRachInfoReq (const struct FfMacSchedSapProvider::SchedDlRachInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedDlCqiInfoReq (const struct FfMacSchedSapProvider::SchedDlCqiInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+
+  for (unsigned int i = 0; i < params.m_cqiList.size (); i++)
+    {
+      if ( params.m_cqiList.at (i).m_cqiType == CqiListElement_s::P10 )
+        {
+          // wideband CQI reporting
+          std::map <uint16_t,uint8_t>::iterator it;
+          uint16_t rnti = params.m_cqiList.at (i).m_rnti;
+          it = m_p10CqiRxed.find (rnti);
+          if (it == m_p10CqiRxed.end ())
+            {
+              // create the new entry
+              m_p10CqiRxed.insert ( std::pair<uint16_t, uint8_t > (rnti, params.m_cqiList.at (i).m_wbCqi.at (0)) ); // only codeword 0 at this stage (SISO)
+              // generate correspondent timer
+              m_p10CqiTimers.insert ( std::pair<uint16_t, uint32_t > (rnti, m_cqiTimersThreshold));
+            }
+          else
+            {
+              // update the CQI value and refresh correspondent timer
+              (*it).second = params.m_cqiList.at (i).m_wbCqi.at (0);
+              // update correspondent timer
+              std::map <uint16_t,uint32_t>::iterator itTimers;
+              itTimers = m_p10CqiTimers.find (rnti);
+              (*itTimers).second = m_cqiTimersThreshold;
+            }
+        }
+      else if ( params.m_cqiList.at (i).m_cqiType == CqiListElement_s::A30 )
+        {
+          // subband CQI reporting high layer configured
+          std::map <uint16_t,SbMeasResult_s>::iterator it;
+          uint16_t rnti = params.m_cqiList.at (i).m_rnti;
+          it = m_a30CqiRxed.find (rnti);
+          if (it == m_a30CqiRxed.end ())
+            {
+              // create the new entry
+              m_a30CqiRxed.insert ( std::pair<uint16_t, SbMeasResult_s > (rnti, params.m_cqiList.at (i).m_sbMeasResult) );
+              m_a30CqiTimers.insert ( std::pair<uint16_t, uint32_t > (rnti, m_cqiTimersThreshold));
+            }
+          else
+            {
+              // update the CQI value and refresh correspondent timer
+              (*it).second = params.m_cqiList.at (i).m_sbMeasResult;
+              std::map <uint16_t,uint32_t>::iterator itTimers;
+              itTimers = m_a30CqiTimers.find (rnti);
+              (*itTimers).second = m_cqiTimersThreshold;
+            }
+        }
+      else
+        {
+          NS_LOG_ERROR (this << " CQI type unknown");
+        }
+    }
+
+  return;
+}
+
+
+double
+TdTbfqFfMacScheduler::EstimateUlSinr (uint16_t rnti, uint16_t rb)
+{
+  std::map <uint16_t, std::vector <double> >::iterator itCqi = m_ueCqi.find (rnti);
+  if (itCqi == m_ueCqi.end ())
+    {
+      // no cqi info about this UE
+      return (NO_SINR);
+
+    }
+  else
+    {
+      // take the average SINR value among the available
+      double sinrSum = 0;
+      int sinrNum = 0;
+      for (uint32_t i = 0; i < m_cschedCellConfig.m_ulBandwidth; i++)
+        {
+          double sinr = (*itCqi).second.at (i);
+          if (sinr != NO_SINR)
+            {
+              sinrSum += sinr;
+              sinrNum++;
+            }
+        }
+      double estimatedSinr = sinrSum / (double)sinrNum;
+      // store the value
+      (*itCqi).second.at (rb) = estimatedSinr;
+      return (estimatedSinr);
+    }
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedUlTriggerReq (const struct FfMacSchedSapProvider::SchedUlTriggerReqParameters& params)
+{
+  NS_LOG_FUNCTION (this << " UL - Frame no. " << (params.m_sfnSf >> 4) << " subframe no. " << (0xF & params.m_sfnSf));
+ 
+  RefreshUlCqiMaps ();
+
+  std::map <uint16_t,uint32_t>::iterator it; 
+  int nflows = 0;
+
+  for (it = m_ceBsrRxed.begin (); it != m_ceBsrRxed.end (); it++)
+    {
+      // remove old entries of this UE-LC
+      if ((*it).second > 0)
+        {
+          nflows++;
+        }
+    }
+
+  if (nflows == 0)
+    {
+      return ; // no flows to be scheduled
+    }
+
+
+  // Divide the resource equally among the active users
+  int rbPerFlow = m_cschedCellConfig.m_ulBandwidth / nflows;
+  if (rbPerFlow == 0)
+    {
+      rbPerFlow = 1;              // at least 1 rbg per flow (till available resource)
+    }
+  int rbAllocated = 0;
+
+  FfMacSchedSapUser::SchedUlConfigIndParameters ret;
+  std::vector <uint16_t> rbgAllocationMap;
+  //std::map <uint16_t, tdtbfqsFlowPerf_t>::iterator itStats;
+  if (m_nextRntiUl != 0)
+    {
+      for (it = m_ceBsrRxed.begin (); it != m_ceBsrRxed.end (); it++)
+        {
+          if ((*it).first == m_nextRntiUl)
+            {
+              break;
+            }
+        }
+      if (it == m_ceBsrRxed.end ())
+        {
+          NS_LOG_ERROR (this << " no user found");
+        }
+    }
+  else
+    {
+      it = m_ceBsrRxed.begin ();
+      m_nextRntiUl = (*it).first;
+    }
+  do
+    {
+      if (rbAllocated + rbPerFlow > m_cschedCellConfig.m_ulBandwidth)
+        {
+          // limit to physical resources last resource assignment
+          rbPerFlow = m_cschedCellConfig.m_ulBandwidth - rbAllocated;
+        }
+     
+      UlDciListElement_s uldci;
+      uldci.m_rnti = (*it).first;
+      uldci.m_rbStart = rbAllocated;
+      uldci.m_rbLen = rbPerFlow;
+      std::map <uint16_t, std::vector <double> >::iterator itCqi = m_ueCqi.find ((*it).first);
+      int cqi = 0;
+      if (itCqi == m_ueCqi.end ())
+        {
+          // no cqi info about this UE
+          uldci.m_mcs = 0; // MCS 0 -> UL-AMC TBD
+//           NS_LOG_DEBUG (this << " UE does not have ULCQI " << (*it).first );
+        }
+      else
+        {
+          // take the lowest CQI value (worst RB)
+          double minSinr = (*itCqi).second.at (uldci.m_rbStart);
+          if (minSinr == NO_SINR)
+            {
+              minSinr = EstimateUlSinr ((*it).first, uldci.m_rbStart);
+            }
+          for (uint16_t i = uldci.m_rbStart; i < uldci.m_rbStart + uldci.m_rbLen; i++)
+            {
+//               NS_LOG_DEBUG (this << " UE " << (*it).first << " has SINR " << (*itCqi).second.at(i));
+              double sinr = (*itCqi).second.at (i);
+              if (sinr == NO_SINR)
+                {
+                  sinr = EstimateUlSinr ((*it).first, i);
+                }
+              if ((*itCqi).second.at (i) < minSinr)
+                {
+                  minSinr = (*itCqi).second.at (i);
+                }
+            }
+
+          // translate SINR -> cqi: WILD ACK: same as DL
+          double s = log2 ( 1 + (
+                              pow (10, minSinr / 10 )  /
+                              ( (-log (5.0 * 0.00005 )) / 1.5) ));
+          cqi = m_amc->GetCqiFromSpectralEfficiency (s);
+          if (cqi == 0)
+            {
+              it++;
+              if (it == m_ceBsrRxed.end ())
+                {
+                  // restart from the first
+                  it = m_ceBsrRxed.begin ();
+                }
+              continue; // CQI == 0 means "out of range" (see table 7.2.3-1 of 36.213)
+            }
+          uldci.m_mcs = m_amc->GetMcsFromCqi (cqi);
+//           NS_LOG_DEBUG (this << " UE " <<  (*it).first << " minsinr " << minSinr << " -> mcs " << (uint16_t)uldci.m_mcs);
+
+        }
+      
+      rbAllocated += rbPerFlow;
+      // store info on allocation for managing ul-cqi interpretation
+      for (int i = 0; i < rbPerFlow; i++)
+        {
+          rbgAllocationMap.push_back ((*it).first);
+        }
+      uldci.m_tbSize = (m_amc->GetTbSizeFromMcs (uldci.m_mcs, rbPerFlow) / 8);
+       NS_LOG_DEBUG (this <<" "<<Simulator::Now()<< " UE " << (*it).first << " startPRB " << (uint32_t)uldci.m_rbStart << " nPRB " << (uint32_t)uldci.m_rbLen << " CQI " << cqi << " MCS " << (uint32_t)uldci.m_mcs << " TBsize " << uldci.m_tbSize << " RbAlloc " << rbAllocated);
+      UpdateUlRlcBufferInfo (uldci.m_rnti, uldci.m_tbSize);
+      uldci.m_ndi = 1;
+      uldci.m_cceIndex = 0;
+      uldci.m_aggrLevel = 1;
+      uldci.m_ueTxAntennaSelection = 3; // antenna selection OFF
+      uldci.m_hopping = false;
+      uldci.m_n2Dmrs = 0;
+      uldci.m_tpc = 0; // no power control
+      uldci.m_cqiRequest = false; // only period CQI at this stage
+      uldci.m_ulIndex = 0; // TDD parameter
+      uldci.m_dai = 1; // TDD parameter
+      uldci.m_freqHopping = 0;
+      uldci.m_pdcchPowerOffset = 0; // not used
+      ret.m_dciList.push_back (uldci);
+
+      // update TTI  UE stats
+      /*itStats = m_flowStatsUl.find ((*it).first);
+      if (itStats != m_flowStatsUl.end ())
+        {
+          (*itStats).second.lastTtiBytesTrasmitted =  uldci.m_tbSize;
+//                     NS_LOG_DEBUG (this << " UE bytes txed " << (*it).second.lastTtiBytesTrasmitted);
+
+
+        }
+      else
+        {
+          NS_LOG_DEBUG (this << " No Stats for this allocated UE");
+        }*/
+
+
+      it++;
+      if (it == m_ceBsrRxed.end ())
+        {
+          // restart from the first
+          it = m_ceBsrRxed.begin ();
+        }
+      if (rbAllocated == m_cschedCellConfig.m_ulBandwidth)
+        {
+          // Stop allocation: no more PRBs
+          m_nextRntiUl = (*it).first;
+          break;
+        }
+    }
+  while ((*it).first != m_nextRntiUl);
+
+
+  // Update global UE stats
+  // update UEs stats
+  /*for (itStats = m_flowStatsUl.begin (); itStats != m_flowStatsUl.end (); itStats++)
+    {
+      (*itStats).second.totalBytesTransmitted += (*itStats).second.lastTtiBytesTrasmitted;
+      // update average throughput (see eq. 12.3 of Sec 12.3.1.2 of LTE – The UMTS Long Term Evolution, Ed Wiley)
+      (*itStats).second.lastAveragedThroughput = ((1.0 - (1.0 / m_timeWindow)) * (*itStats).second.lastAveragedThroughput) + ((1.0 / m_timeWindow) * (double)((*itStats).second.lastTtiBytesTrasmitted / 0.001));
+      //       NS_LOG_DEBUG (this << " UE tot bytes " << (*itStats).second.totalBytesTransmitted);
+      //       NS_LOG_DEBUG (this << " UE avg thr " << (*itStats).second.lastAveragedThroughput);
+      (*itStats).second.lastTtiBytesTrasmitted = 0;
+    }*/
+  m_allocationMaps.insert (std::pair <uint16_t, std::vector <uint16_t> > (params.m_sfnSf, rbgAllocationMap));
+  m_schedSapUser->SchedUlConfigInd (ret);
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedUlNoiseInterferenceReq (const struct FfMacSchedSapProvider::SchedUlNoiseInterferenceReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedUlSrInfoReq (const struct FfMacSchedSapProvider::SchedUlSrInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+  // TODO: Implementation of the API
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedUlMacCtrlInfoReq (const struct FfMacSchedSapProvider::SchedUlMacCtrlInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+
+  std::map <uint16_t,uint32_t>::iterator it;
+  
+  for (unsigned int i = 0; i < params.m_macCeList.size (); i++)
+  {
+    if ( params.m_macCeList.at (i).m_macCeType == MacCeListElement_s::BSR )
+    {
+      // buffer status report
+      uint16_t rnti = params.m_macCeList.at (i).m_rnti;
+      it = m_ceBsrRxed.find (rnti);
+      if (it == m_ceBsrRxed.end ())
+      {
+        // create the new entry
+        uint8_t bsrId = params.m_macCeList.at (i).m_macCeValue.m_bufferStatus.at (0);
+        int buffer = BufferSizeLevelBsr::BsrId2BufferSize (bsrId);
+        m_ceBsrRxed.insert ( std::pair<uint16_t, uint32_t > (rnti, buffer)); // only 1 buffer status is working now
+      }
+      else
+      {
+        // update the CQI value
+        (*it).second = BufferSizeLevelBsr::BsrId2BufferSize (params.m_macCeList.at (i).m_macCeValue.m_bufferStatus.at (0));
+      }
+    }
+  }
+  
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::DoSchedUlCqiInfoReq (const struct FfMacSchedSapProvider::SchedUlCqiInfoReqParameters& params)
+{
+  NS_LOG_FUNCTION (this);
+//   NS_LOG_DEBUG (this << " RX SFNID " << params.m_sfnSf);
+  // retrieve the allocation for this subframe
+  std::map <uint16_t, std::vector <uint16_t> >::iterator itMap;
+  std::map <uint16_t, std::vector <double> >::iterator itCqi;
+  itMap = m_allocationMaps.find (params.m_sfnSf);
+  if (itMap == m_allocationMaps.end ())
+    {
+      //NS_LOG_DEBUG (this << " Does not find info on allocation, size : " << m_allocationMaps.size ());
+      return;
+    }
+  for (uint32_t i = 0; i < (*itMap).second.size (); i++)
+    {
+      // convert from fixed point notation Sxxxxxxxxxxx.xxx to double
+//       NS_LOG_INFO (this << " i " << i << " size " << params.m_ulCqi.m_sinr.size () << " mapSIze " << (*itMap).second.size ());
+      double sinr = LteFfConverter::fpS11dot3toDouble (params.m_ulCqi.m_sinr.at (i));
+      //NS_LOG_DEBUG (this << " UE " << (*itMap).second.at (i) << " SINRfp " << params.m_ulCqi.m_sinr.at (i) << " sinrdb " << sinr);
+      itCqi = m_ueCqi.find ((*itMap).second.at (i));
+      if (itCqi == m_ueCqi.end ())
+        {
+          // create a new entry
+          std::vector <double> newCqi;
+          for (uint32_t j = 0; j < m_cschedCellConfig.m_ulBandwidth; j++)
+            {
+              if (i == j)
+                {
+                  newCqi.push_back (sinr);
+                }
+              else
+                {
+                  // initialize with NO_SINR value.
+                  newCqi.push_back (NO_SINR);
+                }
+
+            }
+          m_ueCqi.insert (std::pair <uint16_t, std::vector <double> > ((*itMap).second.at (i), newCqi));
+          // generate correspondent timer
+          m_ueCqiTimers.insert (std::pair <uint16_t, uint32_t > ((*itMap).second.at (i), m_cqiTimersThreshold));
+        }
+      else
+        {
+          // update the value
+          (*itCqi).second.at (i) = sinr;
+          // update correspondent timer
+          std::map <uint16_t, uint32_t>::iterator itTimers;
+          itTimers = m_ueCqiTimers.find ((*itMap).second.at (i));
+          (*itTimers).second = m_cqiTimersThreshold;
+          
+        }
+
+    }
+  // remove obsolete info on allocation
+  m_allocationMaps.erase (itMap);
+
+  return;
+}
+
+void
+TdTbfqFfMacScheduler::RefreshDlCqiMaps(void)
+{
+  // refresh DL CQI P01 Map
+  std::map <uint16_t,uint32_t>::iterator itP10 = m_p10CqiTimers.begin ();
+  while (itP10!=m_p10CqiTimers.end ())
+    {
+//       NS_LOG_INFO (this << " P10-CQI for user " << (*itP10).first << " is " << (uint32_t)(*itP10).second << " thr " << (uint32_t)m_cqiTimersThreshold);
+      if ((*itP10).second == 0)
+        {
+          // delete correspondent entries
+          std::map <uint16_t,uint8_t>::iterator itMap = m_p10CqiRxed.find ((*itP10).first);
+          NS_ASSERT_MSG (itMap != m_p10CqiRxed.end (), " Does not find CQI report for user " << (*itP10).first);
+          NS_LOG_INFO (this << " P10-CQI exired for user " << (*itP10).first);
+          m_p10CqiRxed.erase (itMap);
+          std::map <uint16_t,uint32_t>::iterator temp = itP10;
+          itP10++;
+          m_p10CqiTimers.erase (temp);
+        }
+      else
+        {
+          (*itP10).second--;
+          itP10++;
+        }
+    }
+  
+  // refresh DL CQI A30 Map
+  std::map <uint16_t,uint32_t>::iterator itA30 = m_a30CqiTimers.begin ();
+  while (itA30!=m_a30CqiTimers.end ())
+    {
+//       NS_LOG_INFO (this << " A30-CQI for user " << (*itA30).first << " is " << (uint32_t)(*itA30).second << " thr " << (uint32_t)m_cqiTimersThreshold);
+      if ((*itA30).second == 0)
+        {
+          // delete correspondent entries
+          std::map <uint16_t,SbMeasResult_s>::iterator itMap = m_a30CqiRxed.find ((*itA30).first);
+          NS_ASSERT_MSG (itMap != m_a30CqiRxed.end (), " Does not find CQI report for user " << (*itA30).first);
+          NS_LOG_INFO (this << " A30-CQI exired for user " << (*itA30).first);
+          m_a30CqiRxed.erase (itMap);
+          std::map <uint16_t,uint32_t>::iterator temp = itA30;
+          itA30++;
+          m_a30CqiTimers.erase (temp);
+        }
+      else
+        {
+          (*itA30).second--;
+          itA30++;
+        }
+    }
+    
+    return;
+}
+
+
+void
+TdTbfqFfMacScheduler::RefreshUlCqiMaps(void)
+{
+  // refresh UL CQI  Map
+  std::map <uint16_t,uint32_t>::iterator itUl = m_ueCqiTimers.begin ();
+  while (itUl!=m_ueCqiTimers.end ())
+    {
+//       NS_LOG_INFO (this << " UL-CQI for user " << (*itUl).first << " is " << (uint32_t)(*itUl).second << " thr " << (uint32_t)m_cqiTimersThreshold);
+      if ((*itUl).second == 0)
+        {
+          // delete correspondent entries
+          std::map <uint16_t, std::vector <double> >::iterator itMap = m_ueCqi.find ((*itUl).first);
+          NS_ASSERT_MSG (itMap != m_ueCqi.end (), " Does not find CQI report for user " << (*itUl).first);
+          NS_LOG_INFO (this << " UL-CQI exired for user " << (*itUl).first);
+          (*itMap).second.clear ();
+          m_ueCqi.erase (itMap);
+          std::map <uint16_t,uint32_t>::iterator temp = itUl;
+          itUl++;
+          m_ueCqiTimers.erase (temp);
+        }
+      else
+        {
+          (*itUl).second--;
+          itUl++;
+        }
+    }
+    
+    return;
+}
+
+void
+TdTbfqFfMacScheduler::UpdateDlRlcBufferInfo (uint16_t rnti, uint8_t lcid, uint16_t size)
+{
+  std::map<LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters>::iterator it;
+  LteFlowId_t flow (rnti, lcid);
+  it = m_rlcBufferReq.find (flow);
+  if (it!=m_rlcBufferReq.end ())
+    {
+       //NS_LOG_DEBUG (this << " UE " << rnti << " LC " << (uint16_t)lcid << " txqueue " << (*it).second.m_rlcTransmissionQueueSize << " retxqueue " << (*it).second.m_rlcRetransmissionQueueSize << " status " << (*it).second.m_rlcStatusPduSize << " decrease " << size);
+      // Update queues: RLC tx order Status, ReTx, Tx
+      // Update status queue
+      if ((*it).second.m_rlcStatusPduSize <= size)
+        {
+          size -= (*it).second.m_rlcStatusPduSize;
+          (*it).second.m_rlcStatusPduSize = 0;
+        }
+      else
+        {
+          (*it).second.m_rlcStatusPduSize -= size;
+          return;
+        }
+      // update retransmission queue  
+      if ((*it).second.m_rlcRetransmissionQueueSize <= size)
+        {
+          size -= (*it).second.m_rlcRetransmissionQueueSize;
+          (*it).second.m_rlcRetransmissionQueueSize = 0;
+        }
+      else
+        {
+          (*it).second.m_rlcRetransmissionQueueSize -= size;
+          return;
+        }
+      // update transmission queue
+      if ((*it).second.m_rlcTransmissionQueueSize <= size)
+        {
+          size -= (*it).second.m_rlcTransmissionQueueSize;
+          (*it).second.m_rlcTransmissionQueueSize = 0;
+        }
+      else
+        {
+          (*it).second.m_rlcTransmissionQueueSize -= size;
+          return;
+        }
+    }
+  else
+    {
+      NS_LOG_ERROR (this << " Does not find DL RLC Buffer Report of UE " << rnti);
+    }
+}
+
+void
+TdTbfqFfMacScheduler::UpdateUlRlcBufferInfo (uint16_t rnti, uint16_t size)
+{
+  
+  
+  std::map <uint16_t,uint32_t>::iterator it = m_ceBsrRxed.find (rnti);
+  if (it!=m_ceBsrRxed.end ())
+    {
+//       NS_LOG_DEBUG (this << " UE " << rnti << " size " << size << " BSR " << (*it).second);      
+      if ((*it).second >= size)
+        {
+          (*it).second -= size;
+        }
+      else
+        {
+          (*it).second = 0;
+        }
+    }
+  else
+    {
+      NS_LOG_ERROR (this << " Does not find BSR report info of UE " << rnti);
+    }
+  
+}
+
+void
+TdTbfqFfMacScheduler::TransmissionModeConfigurationUpdate (uint16_t rnti, uint8_t txMode)
+{
+  NS_LOG_FUNCTION (this << " RNTI " << rnti << " txMode " << (uint16_t)txMode);
+  FfMacCschedSapUser::CschedUeConfigUpdateIndParameters params;
+  params.m_rnti = rnti;
+  params.m_transmissionMode = txMode;
+  m_cschedSapUser->CschedUeConfigUpdateInd (params);
+}
+
+
+}
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/model/tdtbfq-ff-mac-scheduler.h	Sun Aug 05 21:33:37 2012 -0300
@@ -0,0 +1,231 @@
+/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>
+ *         Dizhi Zhou <dizhi.zhou@gmail.com>
+ */
+
+#ifndef TDTBFQ_FF_MAC_SCHEDULER_H
+#define TDTBFQ_FF_MAC_SCHEDULER_H
+
+#include <ns3/lte-common.h>
+#include <ns3/ff-mac-csched-sap.h>
+#include <ns3/ff-mac-sched-sap.h>
+#include <ns3/ff-mac-scheduler.h>
+#include <vector>
+#include <map>
+#include <set>
+#include <ns3/nstime.h>
+#include <ns3/lte-amc.h>
+
+
+// value for SINR outside the range defined by FF-API, used to indicate that there
+// is no CQI for this element
+#define NO_SINR -5000
+
+namespace ns3 {
+
+
+struct tdtbfqsFlowPerf_t
+{
+  Time flowStart;
+  uint64_t packetArrivalRate;     // packet arrival rate( byte/s)
+  uint64_t tokenGenerationRate;   // token generation rate ( byte/s )
+  uint32_t tokenPoolSize;         // current size of token pool (byte)
+  uint32_t maxTokenPoolSize;      // maximum size of token pool (byte)
+  int counter;                    // the number of token borrow or given to token bank
+  uint32_t burstCredit;           // the maximum number of tokens connection i can borrow from the bank each time
+  int debtLimit;                  // counter threshold that the flow cannot further borrow tokens from bank
+  uint32_t creditableThreshold;   // the flow cannot borrow token from bank until the number of token it has deposited to bank reaches this threshold
+};
+
+
+/**
+ * \ingroup ff-api
+ * \defgroup FF-API TdTbfqFfMacScheduler
+ */
+/**
+ * \ingroup TdTbfqFfMacScheduler
+ * \brief Implements the SCHED SAP and CSCHED SAP for a Token Bank Fair Queue scheduler
+ *
+ * This class implements the interface defined by the FfMacScheduler abstract class
+ */
+
+class TdTbfqFfMacScheduler : public FfMacScheduler
+{
+public:
+  /**
+   * \brief Constructor
+   *
+   * Creates the MAC Scheduler interface implementation
+   */
+  TdTbfqFfMacScheduler ();
+
+  /**
+   * Destructor
+   */
+  virtual ~TdTbfqFfMacScheduler ();
+
+  // inherited from Object
+  virtual void DoDispose (void);
+  static TypeId GetTypeId (void);
+
+  // inherited from FfMacScheduler
+  virtual void SetFfMacCschedSapUser (FfMacCschedSapUser* s);
+  virtual void SetFfMacSchedSapUser (FfMacSchedSapUser* s);
+  virtual FfMacCschedSapProvider* GetFfMacCschedSapProvider ();
+  virtual FfMacSchedSapProvider* GetFfMacSchedSapProvider ();
+
+  friend class TdTbfqSchedulerMemberCschedSapProvider;
+  friend class TdTbfqSchedulerMemberSchedSapProvider;
+  
+  void TransmissionModeConfigurationUpdate (uint16_t rnti, uint8_t txMode);
+
+private:
+  //
+  // Implementation of the CSCHED API primitives
+  // (See 4.1 for description of the primitives)
+  //
+
+  void DoCschedCellConfigReq (const struct FfMacCschedSapProvider::CschedCellConfigReqParameters& params);
+
+  void DoCschedUeConfigReq (const struct FfMacCschedSapProvider::CschedUeConfigReqParameters& params);
+
+  void DoCschedLcConfigReq (const struct FfMacCschedSapProvider::CschedLcConfigReqParameters& params);
+
+  void DoCschedLcReleaseReq (const struct FfMacCschedSapProvider::CschedLcReleaseReqParameters& params);
+
+  void DoCschedUeReleaseReq (const struct FfMacCschedSapProvider::CschedUeReleaseReqParameters& params);
+
+  //
+  // Implementation of the SCHED API primitives
+  // (See 4.2 for description of the primitives)
+  //
+
+  void DoSchedDlRlcBufferReq (const struct FfMacSchedSapProvider::SchedDlRlcBufferReqParameters& params);
+
+  void DoSchedDlPagingBufferReq (const struct FfMacSchedSapProvider::SchedDlPagingBufferReqParameters& params);
+
+  void DoSchedDlMacBufferReq (const struct FfMacSchedSapProvider::SchedDlMacBufferReqParameters& params);
+
+  void DoSchedDlTriggerReq (const struct FfMacSchedSapProvider::SchedDlTriggerReqParameters& params);
+
+  void DoSchedDlRachInfoReq (const struct FfMacSchedSapProvider::SchedDlRachInfoReqParameters& params);
+
+  void DoSchedDlCqiInfoReq (const struct FfMacSchedSapProvider::SchedDlCqiInfoReqParameters& params);
+
+  void DoSchedUlTriggerReq (const struct FfMacSchedSapProvider::SchedUlTriggerReqParameters& params);
+
+  void DoSchedUlNoiseInterferenceReq (const struct FfMacSchedSapProvider::SchedUlNoiseInterferenceReqParameters& params);
+
+  void DoSchedUlSrInfoReq (const struct FfMacSchedSapProvider::SchedUlSrInfoReqParameters& params);
+
+  void DoSchedUlMacCtrlInfoReq (const struct FfMacSchedSapProvider::SchedUlMacCtrlInfoReqParameters& params);
+
+  void DoSchedUlCqiInfoReq (const struct FfMacSchedSapProvider::SchedUlCqiInfoReqParameters& params);
+
+
+  int GetRbgSize (int dlbandwidth);
+
+  int LcActivePerFlow (uint16_t rnti);
+
+  double EstimateUlSinr (uint16_t rnti, uint16_t rb);
+  
+  void RefreshDlCqiMaps(void);
+  void RefreshUlCqiMaps(void);
+  
+  void UpdateDlRlcBufferInfo (uint16_t rnti, uint8_t lcid, uint16_t size);
+  void UpdateUlRlcBufferInfo (uint16_t rnti, uint16_t size);
+  Ptr<LteAmc> m_amc;
+
+  /*
+   * Vectors of UE's LC info
+  */
+  std::map <LteFlowId_t, FfMacSchedSapProvider::SchedDlRlcBufferReqParameters> m_rlcBufferReq;
+
+
+  /*
+  * Map of UE statistics (per RNTI basis) in downlink
+  */
+  std::map <uint16_t, tdtbfqsFlowPerf_t> m_flowStatsDl; 
+
+  /*
+  * Map of UE statistics (per RNTI basis)
+  */
+  std::map <uint16_t, tdtbfqsFlowPerf_t> m_flowStatsUl;
+
+
+  /*
+  * Map of UE's DL CQI P01 received
+  */
+  std::map <uint16_t,uint8_t> m_p10CqiRxed;
+  /*
+  * Map of UE's timers on DL CQI P01 received
+  */
+  std::map <uint16_t,uint32_t> m_p10CqiTimers;
+
+  /*
+  * Map of UE's DL CQI A30 received
+  */
+  std::map <uint16_t,SbMeasResult_s> m_a30CqiRxed;
+  /*
+  * Map of UE's timers on DL CQI A30 received
+  */
+  std::map <uint16_t,uint32_t> m_a30CqiTimers;
+
+  /*
+  * Map of previous allocated UE per RBG
+  * (used to retrieve info from UL-CQI)
+  */
+  std::map <uint16_t, std::vector <uint16_t> > m_allocationMaps;
+
+  /*
+  * Map of UEs' UL-CQI per RBG
+  */
+  std::map <uint16_t, std::vector <double> > m_ueCqi;
+  /*
+  * Map of UEs' timers on UL-CQI per RBG
+  */
+  std::map <uint16_t, uint32_t> m_ueCqiTimers;
+
+  /*
+  * Map of UE's buffer status reports received
+  */
+  std::map <uint16_t,uint32_t> m_ceBsrRxed;
+
+  // MAC SAPs
+  FfMacCschedSapUser* m_cschedSapUser;
+  FfMacSchedSapUser* m_schedSapUser;
+  FfMacCschedSapProvider* m_cschedSapProvider;
+  FfMacSchedSapProvider* m_schedSapProvider;
+
+
+  // Internal parameters
+  FfMacCschedSapProvider::CschedCellConfigReqParameters m_cschedCellConfig;
+
+  uint16_t m_nextRntiUl; // RNTI of the next user to be served next scheduling in UL
+  
+  uint32_t m_cqiTimersThreshold; // # of TTIs for which a CQI canbe considered valid
+
+  std::map <uint16_t,uint8_t> m_uesTxMode; // txMode of the UEs
+
+  uint64_t bankSize;  // the number of bytes in token bank
+};
+
+} // namespace ns3
+
+#endif /* TDTBFQ_FF_MAC_SCHEDULER_H */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/test/lte-test-fdtbfq-ff-mac-scheduler.cc	Sun Aug 05 21:33:37 2012 -0300
@@ -0,0 +1,791 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>,
+ *         Nicola Baldo <nbaldo@cttc.es>
+ *         Dizhi Zhou <dizhi.zhou@gmail.com>
+ */
+
+#include <iostream>
+#include <sstream>
+#include <string>
+
+#include <ns3/object.h>
+#include <ns3/spectrum-interference.h>
+#include <ns3/spectrum-error-model.h>
+#include <ns3/log.h>
+#include <ns3/test.h>
+#include <ns3/simulator.h>
+#include <ns3/packet.h>
+#include <ns3/ptr.h>
+#include "ns3/radio-bearer-stats-calculator.h"
+#include <ns3/constant-position-mobility-model.h>
+#include <ns3/eps-bearer.h>
+#include <ns3/node-container.h>
+#include <ns3/mobility-helper.h>
+#include <ns3/net-device-container.h>
+#include <ns3/lte-ue-net-device.h>
+#include <ns3/lte-enb-net-device.h>
+#include <ns3/lte-ue-rrc.h>
+#include <ns3/lte-helper.h>
+#include "ns3/string.h"
+#include "ns3/double.h"
+#include <ns3/lte-enb-phy.h>
+#include <ns3/lte-ue-phy.h>
+#include <ns3/boolean.h>
+#include <ns3/enum.h>
+
+#include "ns3/epc-helper.h"
+#include "ns3/network-module.h"
+#include "ns3/ipv4-global-routing-helper.h"
+#include "ns3/internet-module.h"
+#include "ns3/applications-module.h"
+#include "ns3/point-to-point-helper.h"
+
+#include "lte-test-fdtbfq-ff-mac-scheduler.h"
+
+NS_LOG_COMPONENT_DEFINE ("LenaTestFdTbfqFfMacCheduler");
+
+namespace ns3 {
+
+LenaTestFdTbfqFfMacSchedulerSuite::LenaTestFdTbfqFfMacSchedulerSuite ()
+  : TestSuite ("lte-fdtbfq-ff-mac-scheduler", SYSTEM)
+{
+  NS_LOG_INFO ("creating LenaTestFdTbfqFfMacSchedulerSuite");
+
+  // General config
+  // Traffic: UDP traffic with fixed rate
+  // Token generation rate = traffic rate
+  // RLC header length = 2 bytes, PDCP header = 2 bytes
+  // Simulation time = 1.0 sec
+  // Throughput in this file is calculated in RLC layer
+
+  //Test Case 1: homogeneous flow test in FDTBFQ (same distance)
+
+  // DOWNLINK -> DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.2    13)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 26 -> 2196 -> 2196000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 2196000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 < 2196000 -> througphut = 232000 byte/sec
+  // 6 user -> 232000 * 6 = 139200 < 2196000 -> throughput = 232000 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 2196000 -> throughput = 2196000 / 12 = 183000 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 2196000 -> throughput = 2196000 / 15 = 146400 byte/sec
+  // UPLINK -> DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.2    13)
+  // 1 user -> 25 PRB at Itbs 26 -> 2292 -> 2292000 > 232000 -> throughput = 232000 bytes/sec
+  // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 > 232000 -> throughput = 232000 bytes/sec 
+  // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 > 232000 -> throughput = 232000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 26 -> 185 -> 185000 < 232000 -> throughput = 185000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 26 -> 89 -> 89000 bytes/sec
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (1,0,0,232000,232000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (3,0,0,232000,232000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (6,0,0,232000,232000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (12,0,0,183000,185000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (15,0,0,146400,0,200,1));
+
+  // DOWNLINK - DISTANCE 3000 -> MCS 24 -> Itbs 20 (from table 7.1.7.2.1-1 of 36.213)
+  // DOWNLINK -> DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.2    13)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 20 -> 1383 -> 1383000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 1383000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 < 1383000 -> througphut = 232000 byte/sec
+  // 6 user -> 232000 * 6 = 139200 > 1383000 -> throughput = 1383000 / 6 = 230500 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 1383000 -> throughput = 1383000 / 12 = 115250 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 1383000 -> throughput = 1383000 / 15 = 92200 byte/sec
+  // UPLINK - DISTANCE 3000 -> MCS 20 -> Itbs 18 (from table 7.1.7.2.1-1 of 36.213)
+  // 1 user -> 25 PRB at Itbs 18 -> 1239 -> 1239000 > 232000 -> throughput = 232000 bytes/sec
+  // 3 users -> 8 PRB at Itbs 18 -> 389 -> 389000 > 232000 -> throughput = 232000 bytes/sec
+  // 6 users -> 4 PRB at Itbs 18 -> 193 -> 193000 < 232000 -> throughput = 193000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 18 -> 97 -> 97000 < 232000 -> throughput = 97000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 18 -> 47 -> 47000 bytes/sec 
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (1,0,3000,232000,232000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (3,0,3000,232000,232000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (6,0,3000,230500,193000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (12,0,3000,115250,97000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (15,0,3000,92200,0,200,1));
+ 
+  // DOWNLINK - DISTANCE 6000 -> MCS 16 -> Itbs 15 (from table 7.1.7.2.1-1 of 36.213)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 15 -> 903 -> 903000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 903000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 < 903000 -> througphut = 232000 byte/sec
+  // 6 user -> 232000 * 6 = 139200 > 903000 -> throughput = 903000 / 6 = 150500 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 903000 -> throughput = 903000 / 12 = 75250 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 903000 -> throughput = 903000 / 15 = 60200 byte/sec
+  // UPLINK - DISTANCE 6000 -> MCS 12 -> Itbs 11 (from table 7.1.7.2.1-1 of 36.213)
+  // 1 user -> 25 PRB at Itbs 11 -> 621 -> 621000 > 232000 -> throughput = 232000  bytes/sec
+  // 3 users -> 8 PRB at Itbs 11 -> 201 -> 201000 < 232000 -> throughput = 201000  bytes/sec
+  // 6 users -> 4 PRB at Itbs 11 -> 97 -> 97000 < 232000 -> throughput = 97000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 11 -> 47 -> 47000 < 232000 -> throughput = 47000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 11 -> 22 -> 22000 bytes/sec
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (1,0,6000,232000,232000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (3,0,6000,232000,201000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (6,0,6000,150500,97000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (12,0,6000,75250,47000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (15,0,6000,60200,0,200,1));
+
+  // DOWNLINK - DISTANCE 9000 -> MCS 12 -> Itbs 11 (from table 7.1.7.2.1-1 of 36.213)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 11 -> 597 -> 597000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 597000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 > 597000 -> througphut = 597000 / 3 = 199000byte/sec
+  // 6 user -> 232000 * 6 = 139200 > 597000 -> throughput = 597000 / 6 = 99500 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 597000 -> throughput = 597000 / 12 = 49750 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 597000 -> throughput = 597000 / 15 = 39800 byte/sec
+  // UPLINK - DISTANCE 9000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
+  // 1 user -> 24 PRB at Itbs 8 -> 437 -> 437000 > 232000 -> throughput = 232000 bytes/sec
+  // 3 users -> 8 PRB at Itbs 8 -> 137 -> 137000 < 232000 -> throughput = 137000 bytes/sec
+  // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 < 232000 -> throughput = 67000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 8 -> 32 -> 32000 < 232000 -> throughput = 32000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 8 -> 15 -> 15000 bytes/sec 
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (1,0,9000,232000,232000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (3,0,9000,199000,137000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (6,0,9000,99500,67000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (12,0,9000,49750,32000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (15,0,9000,39800,0,200,1));
+ 
+  // DONWLINK - DISTANCE 15000 -> MCS 6 -> Itbs 6 (from table 7.1.7.2.1-1 of 36.213)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 6 -> 309 -> 309000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 309000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 > 309000 -> througphut = 309000 / 3 = 103000byte/sec
+  // 6 user -> 232000 * 6 = 139200 > 309000 -> throughput = 309000 / 6 = 51500 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 309000 -> throughput = 309000 / 12 = 25750 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 309000 -> throughput = 309000 / 15 = 20600 byte/sec
+  // UPLINK - DISTANCE 15000 -> MCS 6 -> Itbs 6 (from table 7.1.7.2.1-1 of 36.213)
+  // 1 user -> 25 PRB at Itbs 6 -> 233 -> 233000 > 232000 -> throughput = 232000 bytes/sec
+  // 3 users -> 8 PRB at Itbs 6 -> 69 -> 69000 < 232000 -> throughput = 69000 bytes/sec
+  // 6 users -> 4 PRB at Itbs 6 -> 32 -> 32000 < 232000 -> throughput = 32000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 6 -> 15 -> 15000 < 232000 -> throughput = 15000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 6 -> 7 -> 7000 bytes/sec
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (1,0,15000,232000,232000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (3,0,15000,103000,69000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (6,0,15000,51500,32000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (12,0,15000,25750,15000,200,1));
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase1 (15,0,15000,20600,0,200,1));
+
+  // Test Case 2: homogeneous flow test in FDTBFQ (different distance)
+  // Traffic1 info
+  //   UDP traffic: payload size = 100 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 132000 byte/rate 
+  // Maximum throughput = 5 / ( 1/2196000 + 1/1383000 + 1/903000 + 1/597000 + 1/309000) = 694720  byte/s
+  // 132000 * 5 = 660000 < 694720 -> estimated throughput in downlink = 132000 byte/sec
+  std::vector<uint16_t> dist1;
+  dist1.push_back (0);    // User 0 distance --> MCS 28
+  dist1.push_back (3000);    // User 1 distance --> MCS 24
+  dist1.push_back (6000);    // User 2 distance --> MCS 16
+  dist1.push_back (9000);    // User 3 distance --> MCS 12
+  dist1.push_back (15000);    // User 4 distance --> MCS 6
+  std::vector<uint16_t> packetSize1;
+  packetSize1.push_back (100);
+  packetSize1.push_back (100);
+  packetSize1.push_back (100);
+  packetSize1.push_back (100);
+  packetSize1.push_back (100);
+  std::vector<uint32_t> estThrFdTbfqDl1;
+  estThrFdTbfqDl1.push_back (132000); // User 0 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl1.push_back (132000); // User 1 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl1.push_back (132000); // User 2 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl1.push_back (132000); // User 3 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl1.push_back (132000); // User 4 estimated TTI throughput from FDTBFQ
+  std::vector<uint32_t> estThrFdTbfqUl1;
+  estThrFdTbfqUl1.push_back (469000); // User 0 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl1.push_back (249000); // User 1 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl1.push_back (125000); // User 2 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl1.push_back (85000); // User 3 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl1.push_back (41000); // User 4 estimated TTI throughput from FDTBFQ
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase2 (dist1,estThrFdTbfqDl1, estThrFdTbfqUl1,packetSize1,1));
+
+  // Traffic2 info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Maximum throughput = 5 / ( 1/2196000 + 1/1383000 + 1/903000 + 1/597000 + 1/309000) = 694720  byte/s
+  // 232000 * 5 = 1160000 > 694720 -> estimated throughput in downlink = 694720 / 5 = 138944 byte/sec
+  std::vector<uint16_t> dist2;
+  dist2.push_back (0);    // User 0 distance --> MCS 28
+  dist2.push_back (3000);    // User 1 distance --> MCS 24
+  dist2.push_back (6000);    // User 2 distance --> MCS 16
+  dist2.push_back (9000);    // User 3 distance --> MCS 12
+  dist2.push_back (15000);    // User 4 distance --> MCS 6
+  std::vector<uint16_t> packetSize2;
+  packetSize2.push_back (200);
+  packetSize2.push_back (200);
+  packetSize2.push_back (200);
+  packetSize2.push_back (200);
+  packetSize2.push_back (200);
+  std::vector<uint32_t> estThrFdTbfqDl2;
+  estThrFdTbfqDl2.push_back (138944); // User 0 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl2.push_back (138944); // User 1 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl2.push_back (138944); // User 2 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl2.push_back (138944); // User 3 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl2.push_back (138944); // User 4 estimated TTI throughput from FDTBFQ
+  std::vector<uint32_t> estThrFdTbfqUl2;
+  estThrFdTbfqUl2.push_back (469000); // User 0 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl2.push_back (249000); // User 1 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl2.push_back (125000); // User 2 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl2.push_back (85000); // User 3 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl2.push_back (41000); // User 4 estimated TTI throughput from FDTBFQ
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase2 (dist2,estThrFdTbfqDl2,estThrFdTbfqUl2,packetSize2,1));
+
+  // Test Case 3: heterogeneous flow test in FDTBFQ
+  //   UDP traffic: payload size = [100,200,300] bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> [132000, 232000, 332000] byte/rate 
+  // Maximum throughput = 5 / ( 1/2196000 + 1/1383000 + 1/903000 ) = 1312417  byte/s
+  // 132000 + 232000 + 332000 = 696000 < 1312417 -> estimated throughput in downlink = [132000, 232000, 332000] byte/sec
+  std::vector<uint16_t> dist3;
+  dist3.push_back (0);    // User 0 distance --> MCS 28
+  dist3.push_back (3000);    // User 1 distance --> MCS 24
+  dist3.push_back (6000);    // User 2 distance --> MCS 16
+  std::vector<uint16_t> packetSize3;
+  packetSize3.push_back (100);
+  packetSize3.push_back (200);
+  packetSize3.push_back (300);
+  std::vector<uint32_t> estThrFdTbfqDl3;
+  estThrFdTbfqDl3.push_back (132000); // User 0 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl3.push_back (232000); // User 1 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqDl3.push_back (332000); // User 2 estimated TTI throughput from FDTBFQ
+  std::vector<uint32_t> estThrFdTbfqUl3;
+  estThrFdTbfqUl3.push_back (469000); // User 0 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl3.push_back (249000); // User 1 estimated TTI throughput from FDTBFQ
+  estThrFdTbfqUl3.push_back (125000); // User 2 estimated TTI throughput from FDTBFQ
+  AddTestCase (new LenaFdTbfqFfMacSchedulerTestCase2 (dist3,estThrFdTbfqDl3, estThrFdTbfqUl3,packetSize3,1));
+
+}
+
+static LenaTestFdTbfqFfMacSchedulerSuite lenaTestFdTbfqFfMacSchedulerSuite;
+
+// --------------- T E S T - C A S E   # 1 ------------------------------
+
+
+std::string 
+LenaFdTbfqFfMacSchedulerTestCase1::BuildNameString (uint16_t nUser, uint16_t dist)
+{
+  std::ostringstream oss;
+  oss << nUser << " UEs, distance " << dist << " m";
+  return oss.str ();
+}
+
+
+LenaFdTbfqFfMacSchedulerTestCase1::LenaFdTbfqFfMacSchedulerTestCase1 (uint16_t nUser, uint16_t nLc, uint16_t dist, double thrRefDl, double thrRefUl, uint16_t packetSize, uint16_t interval)
+  : TestCase (BuildNameString (nUser, dist)),
+    m_nUser (nUser),
+    m_nLc (nLc),
+    m_dist (dist),
+	m_packetSize (packetSize),
+	m_interval (interval),
+    m_thrRefDl (thrRefDl),
+    m_thrRefUl (thrRefUl)
+{
+}
+
+LenaFdTbfqFfMacSchedulerTestCase1::~LenaFdTbfqFfMacSchedulerTestCase1 ()
+{
+}
+
+void
+LenaFdTbfqFfMacSchedulerTestCase1::DoRun (void)
+{
+  Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
+  Ptr<EpcHelper>  epcHelper = CreateObject<EpcHelper> ();
+  lteHelper->SetEpcHelper (epcHelper);
+
+  Ptr<Node> pgw = epcHelper->GetPgwNode ();
+
+   // Create a single RemoteHost
+  NodeContainer remoteHostContainer;
+  remoteHostContainer.Create (1);
+  Ptr<Node> remoteHost = remoteHostContainer.Get (0);
+  InternetStackHelper internet;
+  internet.Install (remoteHostContainer);
+
+  // Create the Internet
+  PointToPointHelper p2ph;
+  p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
+  p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
+  p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.001)));
+  NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);
+  Ipv4AddressHelper ipv4h;
+  ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
+  Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);
+  // interface 0 is localhost, 1 is the p2p device
+  Ipv4Address remoteHostAddr = internetIpIfaces.GetAddress (1);
+
+  Ipv4StaticRoutingHelper ipv4RoutingHelper;
+  Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
+  remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);
+
+  Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));
+  Config::SetDefault ("ns3::LteAmc::Ber", DoubleValue (0.00005));
+  Config::SetDefault ("ns3::LteSpectrumPhy::PemEnabled", BooleanValue (false));
+
+  LogComponentDisableAll (LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbRrc", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeRrc", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbMac", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeMac", LOG_LEVEL_ALL);
+//     LogComponentEnable ("LteRlc", LOG_LEVEL_ALL);
+//
+//   LogComponentEnable ("LtePhy", LOG_LEVEL_ALL);
+//   LogComponentEnable ("LteEnbPhy", LOG_LEVEL_ALL);
+//   LogComponentEnable ("LteUePhy", LOG_LEVEL_ALL);
+
+  //   LogComponentEnable ("LteSpectrumPhy", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteInterference", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteSinrChunkProcessor", LOG_LEVEL_ALL);
+  // 
+  //   LogComponentEnable ("LtePropagationLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("ShadowingLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("PenetrationLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("MultipathLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("PathLossModel", LOG_LEVEL_ALL);
+  // 
+  //   LogComponentEnable ("LteNetDevice", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeNetDevice", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbNetDevice", LOG_LEVEL_ALL);
+
+//     LogComponentEnable ("FdTbfqFfMacScheduler", LOG_LEVEL_AlL);
+  LogComponentEnable ("LenaTestFdTbfqFfMacCheduler", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteAmc", LOG_LEVEL_ALL);
+//     LogComponentEnable ("RadioBearerStatsCalculator", LOG_LEVEL_ALL);
+
+   
+  lteHelper->SetAttribute ("PathlossModel", StringValue ("ns3::FriisSpectrumPropagationLossModel"));
+
+  // Create Nodes: eNodeB and UE
+  NodeContainer enbNodes;
+  NodeContainer ueNodes;
+  enbNodes.Create (1);
+  ueNodes.Create (m_nUser);
+
+  // Install Mobility Model
+  MobilityHelper mobility;
+  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+  mobility.Install (enbNodes);
+  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+  mobility.Install (ueNodes);
+
+  // Create Devices and install them in the Nodes (eNB and UE)
+  NetDeviceContainer enbDevs;
+  NetDeviceContainer ueDevs;
+  lteHelper->SetSchedulerType ("ns3::FdTbfqFfMacScheduler");
+  enbDevs = lteHelper->InstallEnbDevice (enbNodes);
+  ueDevs = lteHelper->InstallUeDevice (ueNodes);
+
+  // Attach a UE to a eNB
+  lteHelper->Attach (ueDevs, enbDevs.Get (0));
+
+  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (0)->GetObject<LteEnbNetDevice> ();
+  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
+  enbPhy->SetAttribute ("TxPower", DoubleValue (30.0));
+  enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
+
+  // Set UEs' position and power
+  for (int i = 0; i < m_nUser; i++)
+    {
+      Ptr<ConstantPositionMobilityModel> mm = ueNodes.Get (i)->GetObject<ConstantPositionMobilityModel> ();
+      mm->SetPosition (Vector (m_dist, 0.0, 0.0));
+      Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (i)->GetObject<LteUeNetDevice> ();
+      Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
+      uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
+      uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
+    }
+
+  // Install the IP stack on the UEs
+  internet.Install (ueNodes);
+  Ipv4InterfaceContainer ueIpIface;
+  ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueDevs));
+  // Assign IP address to UEs, and install applications
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+      Ptr<Node> ueNode = ueNodes.Get (u);
+      // Set the default gateway for the UE
+      Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());
+      ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);
+    }
+
+// Activate an EPS bearer
+  enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
+  GbrQosInformation qos;
+  qos.gbrDl = (m_packetSize + 32) * (1000/m_interval) * 8;  // bit/s, considering IP, UDP, RLC, PDCP header size
+  qos.gbrUl = 0;
+  qos.mbrDl = qos.gbrDl;
+  qos.mbrUl = 0;
+
+  EpsBearer bearer (q, qos);
+  lteHelper->ActivateEpsBearer (ueDevs, bearer, EpcTft::Default ());
+
+  lteHelper->EnableMacTraces ();
+  lteHelper->EnableRlcTraces ();
+  lteHelper->EnablePdcpTraces ();
+
+  // Install downlind and uplink applications
+  uint16_t dlPort = 1234;
+  uint16_t ulPort = 2000;
+  PacketSinkHelper dlPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), dlPort));
+  PacketSinkHelper ulPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), ulPort));
+  ApplicationContainer clientApps;
+  ApplicationContainer serverApps;
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+      ++ulPort;
+      serverApps.Add (dlPacketSinkHelper.Install (ueNodes.Get(u))); // receive packets from remotehost
+      serverApps.Add (ulPacketSinkHelper.Install (remoteHost));  // receive packets from UEs
+
+      UdpClientHelper dlClient (ueIpIface.GetAddress (u), dlPort); // uplink packets generator
+      dlClient.SetAttribute ("Interval", TimeValue (MilliSeconds(m_interval)));
+      dlClient.SetAttribute ("MaxPackets", UintegerValue(1000000));
+      dlClient.SetAttribute ("PacketSize", UintegerValue(m_packetSize));
+
+      UdpClientHelper ulClient (remoteHostAddr, ulPort);           // downlink packets generator
+      ulClient.SetAttribute ("Interval", TimeValue (MilliSeconds(m_interval)));
+      ulClient.SetAttribute ("MaxPackets", UintegerValue(1000000));
+      ulClient.SetAttribute ("PacketSize", UintegerValue(m_packetSize));
+
+      clientApps.Add (dlClient.Install (remoteHost));
+      clientApps.Add (ulClient.Install (ueNodes.Get(u)));
+   }
+
+  serverApps.Start (Seconds (0.001));
+  clientApps.Start (Seconds (0.001));
+
+  double simulationTime = 1.0;
+  double tolerance = 0.1;
+  Simulator::Stop (Seconds (simulationTime));
+
+  Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats ();
+  rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (simulationTime)));
+
+  Simulator::Run ();
+
+  /**
+   * Check that the downlink assignation is done in a "token bank fair queue" manner
+   */
+
+  NS_LOG_INFO ("DL - Test with " << m_nUser << " user(s) at distance " << m_dist);
+  std::vector <uint64_t> dlDataRxed;
+  for (int i = 0; i < m_nUser; i++)
+    {
+      // get the imsi
+      uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
+      // get the lcId
+      uint8_t lcId = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetRrc ()->GetLcIdVector ().at (0);
+	  uint64_t data = rlcStats->GetDlRxData (imsi, lcId);
+      dlDataRxed.push_back (data);
+      NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << "  thr " << (double)dlDataRxed.at (i) / simulationTime << " ref " << m_thrRefDl);
+    }
+
+  for (int i = 0; i < m_nUser; i++)
+    {
+      NS_TEST_ASSERT_MSG_EQ_TOL ((double)dlDataRxed.at (i) / simulationTime, m_thrRefDl, m_thrRefDl * tolerance, " Unfair Throughput!");
+    }
+
+  /**
+  * Check that the uplink assignation is done in a "round robin" manner
+  */
+
+  NS_LOG_INFO ("UL - Test with " << m_nUser << " user(s) at distance " << m_dist);
+  std::vector <uint64_t> ulDataRxed;
+  for (int i = 0; i < m_nUser; i++)
+    {
+      // get the imsi
+      uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
+      // get the lcId
+      uint8_t lcId = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetRrc ()->GetLcIdVector ().at (0);
+      ulDataRxed.push_back (rlcStats->GetUlRxData (imsi, lcId));
+      NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)ulDataRxed.at (i) << "  thr " << (double)ulDataRxed.at (i) / simulationTime << " ref " << m_thrRefUl);
+    }
+
+  for (int i = 0; i < m_nUser; i++)
+    {
+      NS_TEST_ASSERT_MSG_EQ_TOL ((double)ulDataRxed.at (i) / simulationTime, m_thrRefUl, m_thrRefUl * tolerance, " Unfair Throughput!");
+    }
+  Simulator::Destroy ();
+
+}
+
+
+
+// --------------- T E S T - C A S E   # 2 ------------------------------
+
+
+std::string 
+LenaFdTbfqFfMacSchedulerTestCase2::BuildNameString (uint16_t nUser, std::vector<uint16_t> dist)
+{
+  std::ostringstream oss;
+  oss << "distances (m) = [ " ;
+  for (std::vector<uint16_t>::iterator it = dist.begin (); it != dist.end (); ++it)
+    {
+      oss << *it << " ";
+    }
+  oss << "]";
+  return oss.str ();
+}
+
+
+LenaFdTbfqFfMacSchedulerTestCase2::LenaFdTbfqFfMacSchedulerTestCase2 (std::vector<uint16_t> dist, std::vector<uint32_t> estThrFdTbfqDl, std::vector<uint32_t> estThrFdTbfqUl, std::vector<uint16_t> packetSize, uint16_t interval)
+  : TestCase (BuildNameString (dist.size (), dist)),
+    m_nUser (dist.size ()),
+    m_dist (dist),
+	m_packetSize (packetSize),
+	m_interval (interval),
+    m_estThrFdTbfqDl (estThrFdTbfqDl),
+    m_estThrFdTbfqUl (estThrFdTbfqUl)
+{
+}
+
+LenaFdTbfqFfMacSchedulerTestCase2::~LenaFdTbfqFfMacSchedulerTestCase2 ()
+{
+}
+
+void
+LenaFdTbfqFfMacSchedulerTestCase2::DoRun (void)
+{
+  Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
+  Ptr<EpcHelper>  epcHelper = CreateObject<EpcHelper> ();
+  lteHelper->SetEpcHelper (epcHelper);
+
+  Ptr<Node> pgw = epcHelper->GetPgwNode ();
+
+   // Create a single RemoteHost
+  NodeContainer remoteHostContainer;
+  remoteHostContainer.Create (1);
+  Ptr<Node> remoteHost = remoteHostContainer.Get (0);
+  InternetStackHelper internet;
+  internet.Install (remoteHostContainer);
+
+  // Create the Internet
+  PointToPointHelper p2ph;
+  p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
+  p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
+  p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.001)));
+  NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);
+  Ipv4AddressHelper ipv4h;
+  ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
+  Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);
+  // interface 0 is localhost, 1 is the p2p device
+  Ipv4Address remoteHostAddr = internetIpIfaces.GetAddress (1);
+
+  Ipv4StaticRoutingHelper ipv4RoutingHelper;
+  Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
+  remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);
+
+  Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));
+  Config::SetDefault ("ns3::LteAmc::Ber", DoubleValue (0.00005));
+  Config::SetDefault ("ns3::LteSpectrumPhy::PemEnabled", BooleanValue (false));
+
+  LogComponentDisableAll (LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbRrc", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeRrc", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbMac", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeMac", LOG_LEVEL_ALL);
+//     LogComponentEnable ("LteRlc", LOG_LEVEL_ALL);
+//
+//   LogComponentEnable ("LtePhy", LOG_LEVEL_ALL);
+//   LogComponentEnable ("LteEnbPhy", LOG_LEVEL_ALL);
+//   LogComponentEnable ("LteUePhy", LOG_LEVEL_ALL);
+
+  //   LogComponentEnable ("LteSpectrumPhy", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteInterference", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteSinrChunkProcessor", LOG_LEVEL_ALL);
+  // 
+  //   LogComponentEnable ("LtePropagationLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("ShadowingLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("PenetrationLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("MultipathLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("PathLossModel", LOG_LEVEL_ALL);
+  // 
+  //   LogComponentEnable ("LteNetDevice", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeNetDevice", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbNetDevice", LOG_LEVEL_ALL);
+
+//     LogComponentEnable ("FdTbfqFfMacScheduler", LOG_LEVEL_AlL);
+  LogComponentEnable ("LenaTestFdTbfqFfMacCheduler", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteAmc", LOG_LEVEL_ALL);
+//     LogComponentEnable ("RadioBearerStatsCalculator", LOG_LEVEL_ALL);
+
+   
+  lteHelper->SetAttribute ("PathlossModel", StringValue ("ns3::FriisSpectrumPropagationLossModel"));
+
+  // Create Nodes: eNodeB and UE
+  NodeContainer enbNodes;
+  NodeContainer ueNodes;
+  enbNodes.Create (1);
+  ueNodes.Create (m_nUser);
+
+  // Install Mobility Model
+  MobilityHelper mobility;
+  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+  mobility.Install (enbNodes);
+  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+  mobility.Install (ueNodes);
+
+  // Create Devices and install them in the Nodes (eNB and UE)
+  NetDeviceContainer enbDevs;
+  NetDeviceContainer ueDevs;
+  lteHelper->SetSchedulerType ("ns3::FdTbfqFfMacScheduler");
+  enbDevs = lteHelper->InstallEnbDevice (enbNodes);
+  ueDevs = lteHelper->InstallUeDevice (ueNodes);
+
+  // Attach a UE to a eNB
+  lteHelper->Attach (ueDevs, enbDevs.Get (0));
+
+  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (0)->GetObject<LteEnbNetDevice> ();
+  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
+  enbPhy->SetAttribute ("TxPower", DoubleValue (30.0));
+  enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
+
+  // Set UEs' position and power
+  for (int i = 0; i < m_nUser; i++)
+    {
+      Ptr<ConstantPositionMobilityModel> mm = ueNodes.Get (i)->GetObject<ConstantPositionMobilityModel> ();
+      mm->SetPosition (Vector (m_dist.at(i), 0.0, 0.0));
+      Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (i)->GetObject<LteUeNetDevice> ();
+      Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
+      uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
+      uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
+    }
+
+  // Install the IP stack on the UEs
+  internet.Install (ueNodes);
+  Ipv4InterfaceContainer ueIpIface;
+  ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueDevs));
+  // Assign IP address to UEs, and install applications
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+      Ptr<Node> ueNode = ueNodes.Get (u);
+      // Set the default gateway for the UE
+      Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());
+      ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);
+    }
+
+// Activate an EPS bearer
+  enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
+  GbrQosInformation qos;
+  uint16_t mbrDl = 0;
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+		mbrDl = mbrDl + m_packetSize.at(u);
+    }
+  mbrDl = mbrDl/ueNodes.GetN();
+  qos.gbrDl = (mbrDl + 32) * (1000/m_interval) * 8;  // bit/s, considering IP, UDP, RLC, PDCP header size
+  qos.gbrUl = 0;
+  qos.mbrDl = qos.gbrDl;
+  qos.mbrUl = 0;
+  EpsBearer bearer (q, qos);
+  lteHelper->ActivateEpsBearer (ueDevs, bearer, EpcTft::Default ());
+
+  lteHelper->EnableMacTraces ();
+  lteHelper->EnableRlcTraces ();
+  lteHelper->EnablePdcpTraces ();
+
+  // Install downlind and uplink applications
+  uint16_t dlPort = 1234;
+  uint16_t ulPort = 2000;
+  PacketSinkHelper dlPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), dlPort));
+  PacketSinkHelper ulPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), ulPort));
+  ApplicationContainer clientApps;
+  ApplicationContainer serverApps;
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+      ++ulPort;
+      serverApps.Add (dlPacketSinkHelper.Install (ueNodes.Get(u))); // receive packets from remotehost
+      serverApps.Add (ulPacketSinkHelper.Install (remoteHost));  // receive packets from UEs
+
+      UdpClientHelper dlClient (ueIpIface.GetAddress (u), dlPort); // uplink packets generator
+      dlClient.SetAttribute ("Interval", TimeValue (MilliSeconds(m_interval)));
+      dlClient.SetAttribute ("MaxPackets", UintegerValue(1000000));
+      dlClient.SetAttribute ("PacketSize", UintegerValue(m_packetSize.at(u)));
+
+      UdpClientHelper ulClient (remoteHostAddr, ulPort);           // downlink packets generator
+      ulClient.SetAttribute ("Interval", TimeValue (MilliSeconds(m_interval)));
+      ulClient.SetAttribute ("MaxPackets", UintegerValue(1000000));
+      ulClient.SetAttribute ("PacketSize", UintegerValue(m_packetSize.at(u)));
+
+      clientApps.Add (dlClient.Install (remoteHost));
+      clientApps.Add (ulClient.Install (ueNodes.Get(u)));
+   }
+
+  serverApps.Start (Seconds (0.001));
+  clientApps.Start (Seconds (0.001));
+
+  double simulationTime = 1.0;
+  double tolerance = 0.1;
+  Simulator::Stop (Seconds (simulationTime));
+
+  Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats ();
+  rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (simulationTime)));
+
+  Simulator::Run ();
+
+  /**
+   * Check that the downlink assignation is done in a "token bank fair queue" manner
+   */
+
+  NS_LOG_INFO ("DL - Test with " << m_nUser << " user(s)");
+  std::vector <uint64_t> dlDataRxed;
+  for (int i = 0; i < m_nUser; i++)
+    {
+      // get the imsi
+      uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
+      // get the lcId
+      uint8_t lcId = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetRrc ()->GetLcIdVector ().at (0);
+      dlDataRxed.push_back (rlcStats->GetDlRxData (imsi, lcId));
+      NS_LOG_INFO ("\tUser " << i << " dist " << m_dist.at (i) << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << "  thr " << (double)dlDataRxed.at (i) / simulationTime << " ref " << m_nUser);
+    }
+
+  for (int i = 0; i < m_nUser; i++)
+    {
+      NS_TEST_ASSERT_MSG_EQ_TOL ((double)dlDataRxed.at (i) / simulationTime, m_estThrFdTbfqDl.at(i), m_estThrFdTbfqDl.at(i) * tolerance, " Unfair Throughput!");
+    }
+
+  /**
+  * Check that the assignation in uplink is done in a round robin manner.
+  */
+
+  NS_LOG_INFO ("UL - Test with " << m_nUser);
+  std::vector <uint64_t> ulDataRxed;
+  for (int i = 0; i < m_nUser; i++)
+    {
+      // get the imsi
+      uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
+      // get the lcId
+      uint8_t lcId = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetRrc ()->GetLcIdVector ().at (0);
+      ulDataRxed.push_back (rlcStats->GetUlRxData (imsi, lcId));
+      NS_LOG_INFO ("\tUser " << i << " dist " << m_dist.at (i) << " bytes rxed " << (double)ulDataRxed.at (i) << "  thr " << (double)ulDataRxed.at (i) / simulationTime << " ref " << (double)m_estThrFdTbfqUl.at (i));
+      //NS_TEST_ASSERT_MSG_EQ_TOL ((double)ulDataRxed.at (i) / simulationTime, (double)m_estThrFdTbfqUl.at (i), (double)m_estThrFdTbfqUl.at (i) * tolerance, " Unfair Throughput!");
+    }
+  Simulator::Destroy ();
+
+}
+
+
+} // namespace ns3
+
+
+
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/test/lte-test-fdtbfq-ff-mac-scheduler.h	Sun Aug 05 21:33:37 2012 -0300
@@ -0,0 +1,91 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>,
+ *         Nicola Baldo <nbaldo@cttc.es>
+ *         Dizhi Zhou <dizhi.zhou@gmail.com>
+ */
+
+#ifndef LENA_TEST_FDTBFQ_FF_MAC_SCHEDULER_H
+#define LENA_TEST_FDTBFQ_FF_MAC_SCHEDULER_H
+
+#include "ns3/simulator.h"
+#include "ns3/test.h"
+
+
+namespace ns3 {
+
+
+/**
+* This system test program creates different test cases with a single eNB and 
+* several UEs, all having the same Radio Bearer specification. In each test 
+* case, the UEs see the same SINR from the eNB; different test cases are 
+* implemented obtained by using different SINR values and different numbers of 
+* UEs. The test consists on checking that the obtained throughput performance 
+* is equal among users is consistent with the definition of token bank fair  
+* queue scheduling
+*/
+class LenaFdTbfqFfMacSchedulerTestCase1 : public TestCase
+{
+public:
+  LenaFdTbfqFfMacSchedulerTestCase1 (uint16_t nUser, uint16_t nLc, uint16_t dist, double thrRefDl, double thrRefUl, uint16_t packetSize, uint16_t interval);
+  virtual ~LenaFdTbfqFfMacSchedulerTestCase1 ();
+
+private:
+  static std::string BuildNameString (uint16_t nUser, uint16_t dist);
+  virtual void DoRun (void);
+  uint16_t m_nUser;
+  uint16_t m_nLc;
+  uint16_t m_dist;
+  uint16_t m_packetSize;  // byte
+  uint16_t m_interval;    // ms
+  double m_thrRefDl;
+  double m_thrRefUl;
+};
+
+
+class LenaFdTbfqFfMacSchedulerTestCase2 : public TestCase
+{
+public:
+  LenaFdTbfqFfMacSchedulerTestCase2 (std::vector<uint16_t> dist, std::vector<uint32_t> estThrFdTbfqDl, std::vector<uint32_t> estThrFdTbfqUl, std::vector<uint16_t> packetSize, uint16_t interval);
+  virtual ~LenaFdTbfqFfMacSchedulerTestCase2 ();
+
+private:
+  static std::string BuildNameString (uint16_t nUser, std::vector<uint16_t> dist);
+  virtual void DoRun (void);
+  uint16_t m_nUser;
+  std::vector<uint16_t> m_dist;
+  std::vector<uint16_t> m_packetSize;  // byte
+  uint16_t m_interval;    // ms
+  std::vector<uint32_t> m_estThrFdTbfqDl;
+  std::vector<uint32_t> m_estThrFdTbfqUl;
+};
+
+
+class LenaTestFdTbfqFfMacSchedulerSuite : public TestSuite
+{
+public:
+  LenaTestFdTbfqFfMacSchedulerSuite ();
+};
+
+
+
+
+} // namespace ns3
+
+
+#endif /* LENA_TEST_FDTBFQ_FF_MAC_SCHEDULER_H */
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/test/lte-test-tdtbfq-ff-mac-scheduler.cc	Sun Aug 05 21:33:37 2012 -0300
@@ -0,0 +1,787 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>,
+ *         Nicola Baldo <nbaldo@cttc.es>\
+ *         Dizhi Zhou <dizhi.zhou@gmail.com>
+ */
+
+#include <iostream>
+#include <sstream>
+#include <string>
+
+#include <ns3/object.h>
+#include <ns3/spectrum-interference.h>
+#include <ns3/spectrum-error-model.h>
+#include <ns3/log.h>
+#include <ns3/test.h>
+#include <ns3/simulator.h>
+#include <ns3/packet.h>
+#include <ns3/ptr.h>
+#include "ns3/radio-bearer-stats-calculator.h"
+#include <ns3/constant-position-mobility-model.h>
+#include <ns3/eps-bearer.h>
+#include <ns3/node-container.h>
+#include <ns3/mobility-helper.h>
+#include <ns3/net-device-container.h>
+#include <ns3/lte-ue-net-device.h>
+#include <ns3/lte-enb-net-device.h>
+#include <ns3/lte-ue-rrc.h>
+#include <ns3/lte-helper.h>
+#include "ns3/string.h"
+#include "ns3/double.h"
+#include <ns3/lte-enb-phy.h>
+#include <ns3/lte-ue-phy.h>
+#include <ns3/boolean.h>
+#include <ns3/enum.h>
+
+#include "ns3/epc-helper.h"
+#include "ns3/network-module.h"
+#include "ns3/ipv4-global-routing-helper.h"
+#include "ns3/internet-module.h"
+#include "ns3/applications-module.h"
+#include "ns3/point-to-point-helper.h"
+
+#include "lte-test-tdtbfq-ff-mac-scheduler.h"
+
+NS_LOG_COMPONENT_DEFINE ("LenaTestTdTbfqFfMacCheduler");
+
+namespace ns3 {
+
+LenaTestTdTbfqFfMacSchedulerSuite::LenaTestTdTbfqFfMacSchedulerSuite ()
+  : TestSuite ("lte-tdtbfq-ff-mac-scheduler", SYSTEM)
+{
+  NS_LOG_INFO ("creating LenaTestTdTbfqFfMacSchedulerSuite");
+
+  // General config
+  // Traffic: UDP traffic with fixed rate
+  // Token generation rate = traffic rate
+  // RLC header length = 2 bytes, PDCP header = 2 bytes
+  // Simulation time = 1.0 sec
+  // Throughput in this file is calculated in RLC layer
+
+  //Test Case 1: homogeneous flow test in TDTBFQ (same distance)
+
+  // DOWNLINK -> DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.2    13)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 26 -> 2196 -> 2196000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 2196000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 < 2196000 -> througphut = 232000 byte/sec
+  // 6 user -> 232000 * 6 = 139200 < 2196000 -> throughput = 232000 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 2196000 -> throughput = 2196000 / 12 = 183000 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 2196000 -> throughput = 2196000 / 15 = 146400 byte/sec
+  // UPLINK -> DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.2    13)
+  // 1 user -> 25 PRB at Itbs 26 -> 2292 -> 2292000 > 232000 -> throughput = 232000 bytes/sec
+  // 3 users -> 8 PRB at Itbs 26 -> 749 -> 749000 > 232000 -> throughput = 232000 bytes/sec 
+  // 6 users -> 4 PRB at Itbs 26 -> 373 -> 373000 > 232000 -> throughput = 232000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 26 -> 185 -> 185000 < 232000 -> throughput = 185000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 26 -> 89 -> 89000 bytes/sec
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (1,0,0,232000,232000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (3,0,0,232000,232000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (6,0,0,232000,232000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (12,0,0,183000,185000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (15,0,0,146400,0,200,1));
+
+  // DOWNLINK - DISTANCE 3000 -> MCS 24 -> Itbs 20 (from table 7.1.7.2.1-1 of 36.213)
+  // DOWNLINK -> DISTANCE 0 -> MCS 28 -> Itbs 26 (from table 7.1.7.2.1-1 of 36.2    13)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 20 -> 1383 -> 1383000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 1383000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 < 1383000 -> througphut = 232000 byte/sec
+  // 6 user -> 232000 * 6 = 139200 > 1383000 -> throughput = 1383000 / 6 = 230500 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 1383000 -> throughput = 1383000 / 12 = 115250 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 1383000 -> throughput = 1383000 / 15 = 92200 byte/sec
+  // UPLINK - DISTANCE 3000 -> MCS 20 -> Itbs 18 (from table 7.1.7.2.1-1 of 36.213)
+  // 1 user -> 25 PRB at Itbs 18 -> 1239 -> 1239000 > 232000 -> throughput = 232000 bytes/sec
+  // 3 users -> 8 PRB at Itbs 18 -> 389 -> 389000 > 232000 -> throughput = 232000 bytes/sec
+  // 6 users -> 4 PRB at Itbs 18 -> 193 -> 193000 < 232000 -> throughput = 193000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 18 -> 97 -> 97000 < 232000 -> throughput = 97000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 18 -> 47 -> 47000 bytes/sec 
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (1,0,3000,232000,232000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (3,0,3000,232000,232000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (6,0,3000,230500,193000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (12,0,3000,115250,97000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (15,0,3000,92200,0,200,1));
+ 
+  // DOWNLINK - DISTANCE 6000 -> MCS 16 -> Itbs 15 (from table 7.1.7.2.1-1 of 36.213)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 15 -> 903 -> 903000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 903000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 < 903000 -> througphut = 232000 byte/sec
+  // 6 user -> 232000 * 6 = 139200 > 903000 -> throughput = 903000 / 6 = 150500 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 903000 -> throughput = 903000 / 12 = 75250 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 903000 -> throughput = 903000 / 15 = 60200 byte/sec
+  // UPLINK - DISTANCE 6000 -> MCS 12 -> Itbs 11 (from table 7.1.7.2.1-1 of 36.213)
+  // 1 user -> 25 PRB at Itbs 11 -> 621 -> 621000 > 232000 -> throughput = 232000  bytes/sec
+  // 3 users -> 8 PRB at Itbs 11 -> 201 -> 201000 < 232000 -> throughput = 201000  bytes/sec
+  // 6 users -> 4 PRB at Itbs 11 -> 97 -> 97000 < 232000 -> throughput = 97000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 11 -> 47 -> 47000 < 232000 -> throughput = 47000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 11 -> 22 -> 22000 bytes/sec
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (1,0,6000,232000,232000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (3,0,6000,232000,201000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (6,0,6000,150500,97000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (12,0,6000,75250,47000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (15,0,6000,60200,0,200,1));
+
+  // DOWNLINK - DISTANCE 9000 -> MCS 12 -> Itbs 11 (from table 7.1.7.2.1-1 of 36.213)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 11 -> 597 -> 597000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 597000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 > 597000 -> througphut = 597000 / 3 = 199000byte/sec
+  // 6 user -> 232000 * 6 = 139200 > 597000 -> throughput = 597000 / 6 = 99500 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 597000 -> throughput = 597000 / 12 = 49750 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 597000 -> throughput = 597000 / 15 = 39800 byte/sec
+  // UPLINK - DISTANCE 9000 -> MCS 8 -> Itbs 8 (from table 7.1.7.2.1-1 of 36.213)
+  // 1 user -> 24 PRB at Itbs 8 -> 437 -> 437000 > 232000 -> throughput = 232000 bytes/sec
+  // 3 users -> 8 PRB at Itbs 8 -> 137 -> 137000 < 232000 -> throughput = 137000 bytes/sec
+  // 6 users -> 4 PRB at Itbs 8 -> 67 -> 67000 < 232000 -> throughput = 67000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 8 -> 32 -> 32000 < 232000 -> throughput = 32000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 8 -> 15 -> 15000 bytes/sec 
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (1,0,9000,232000,232000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (3,0,9000,199000,137000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (6,0,9000,99500,67000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (12,0,9000,49750,32000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (15,0,9000,39800,0,200,1));
+ 
+  // DONWLINK - DISTANCE 15000 -> MCS 6 -> Itbs 6 (from table 7.1.7.2.1-1 of 36.213)
+  // Traffic info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Totol bandwidth: 24 PRB at Itbs 6 -> 309 -> 309000 byte/sec
+  // 1 user -> 232000 * 1 = 232000 < 309000 -> throughput = 232000 byte/sec
+  // 3 user -> 232000 * 3 = 696000 > 309000 -> througphut = 309000 / 3 = 103000byte/sec
+  // 6 user -> 232000 * 6 = 139200 > 309000 -> throughput = 309000 / 6 = 51500 byte/sec
+  // 12 user -> 232000 * 12 = 2784000 > 309000 -> throughput = 309000 / 12 = 25750 byte/sec
+  // 15 user -> 232000 * 15 = 3480000 > 309000 -> throughput = 309000 / 15 = 20600 byte/sec
+  // UPLINK - DISTANCE 15000 -> MCS 6 -> Itbs 6 (from table 7.1.7.2.1-1 of 36.213)
+  // 1 user -> 25 PRB at Itbs 6 -> 233 -> 233000 > 232000 -> throughput = 232000 bytes/sec
+  // 3 users -> 8 PRB at Itbs 6 -> 69 -> 69000 < 232000 -> throughput = 69000 bytes/sec
+  // 6 users -> 4 PRB at Itbs 6 -> 32 -> 32000 < 232000 -> throughput = 32000 bytes/sec
+  // 12 users -> 2 PRB at Itbs 6 -> 15 -> 15000 < 232000 -> throughput = 15000 bytes/sec
+  // 15 users -> 1 PRB at Itbs 6 -> 7 -> 7000 bytes/sec
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (1,0,15000,232000,232000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (3,0,15000,103000,69000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (6,0,15000,51500,32000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (12,0,15000,25750,15000,200,1));
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase1 (15,0,15000,20600,0,200,1));
+
+  // Test Case 2: homogeneous flow test in TDTBFQ (different distance)
+  // Traffic1 info
+  //   UDP traffic: payload size = 100 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 132000 byte/rate 
+  // Maximum throughput = 5 / ( 1/2196000 + 1/1383000 + 1/903000 + 1/597000 + 1/309000) = 694720  byte/s
+  // 132000 * 5 = 660000 < 694720 -> estimated throughput in downlink = 132000 byte/sec
+  std::vector<uint16_t> dist1;
+  dist1.push_back (0);    // User 0 distance --> MCS 28
+  dist1.push_back (3000);    // User 1 distance --> MCS 24
+  dist1.push_back (6000);    // User 2 distance --> MCS 16
+  dist1.push_back (9000);    // User 3 distance --> MCS 12
+  dist1.push_back (15000);    // User 4 distance --> MCS 6
+  std::vector<uint16_t> packetSize1;
+  packetSize1.push_back (100);
+  packetSize1.push_back (100);
+  packetSize1.push_back (100);
+  packetSize1.push_back (100);
+  packetSize1.push_back (100);
+  std::vector<uint32_t> estThrTdTbfqDl1;
+  estThrTdTbfqDl1.push_back (132000); // User 0 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl1.push_back (132000); // User 1 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl1.push_back (132000); // User 2 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl1.push_back (132000); // User 3 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl1.push_back (132000); // User 4 estimated TTI throughput from TDTBFQ
+  std::vector<uint32_t> estThrTdTbfqUl1;
+  estThrTdTbfqUl1.push_back (469000); // User 0 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl1.push_back (249000); // User 1 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl1.push_back (125000); // User 2 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl1.push_back (85000); // User 3 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl1.push_back (41000); // User 4 estimated TTI throughput from TDTBFQ
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase2 (dist1,estThrTdTbfqDl1, estThrTdTbfqUl1,packetSize1,1));
+
+  // Traffic2 info
+  //   UDP traffic: payload size = 200 bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> 232000 byte/rate 
+  // Maximum throughput = 5 / ( 1/2196000 + 1/1383000 + 1/903000 + 1/597000 + 1/309000) = 694720  byte/s
+  // 232000 * 5 = 1160000 > 694720 -> estimated throughput in downlink = 694720 / 5 = 138944 byte/sec
+  std::vector<uint16_t> dist2;
+  dist2.push_back (0);    // User 0 distance --> MCS 28
+  dist2.push_back (3000);    // User 1 distance --> MCS 24
+  dist2.push_back (6000);    // User 2 distance --> MCS 16
+  dist2.push_back (9000);    // User 3 distance --> MCS 12
+  dist2.push_back (15000);    // User 4 distance --> MCS 6
+  std::vector<uint16_t> packetSize2;
+  packetSize2.push_back (200);
+  packetSize2.push_back (200);
+  packetSize2.push_back (200);
+  packetSize2.push_back (200);
+  packetSize2.push_back (200);
+  std::vector<uint32_t> estThrTdTbfqDl2;
+  estThrTdTbfqDl2.push_back (138944); // User 0 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl2.push_back (138944); // User 1 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl2.push_back (138944); // User 2 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl2.push_back (138944); // User 3 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl2.push_back (138944); // User 4 estimated TTI throughput from TDTBFQ
+  std::vector<uint32_t> estThrTdTbfqUl2;
+  estThrTdTbfqUl2.push_back (469000); // User 0 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl2.push_back (249000); // User 1 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl2.push_back (125000); // User 2 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl2.push_back (85000); // User 3 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl2.push_back (41000); // User 4 estimated TTI throughput from TDTBFQ
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase2 (dist2,estThrTdTbfqDl2,estThrTdTbfqUl2,packetSize2,1));
+
+  // Test Case 3: heterogeneous flow test in TDTBFQ
+  //   UDP traffic: payload size = [100,200,300] bytes, interval = 1 ms
+  //   UDP rate in scheduler: (payload + RLC header + PDCP header + IP header + UDP header) * 1000 byte/sec -> [132000, 232000, 332000] byte/rate 
+  // Maximum throughput = 5 / ( 1/2196000 + 1/1383000 + 1/903000 ) = 1312417  byte/s
+  // 132000 + 232000 + 332000 = 696000 < 1312417 -> estimated throughput in downlink = [132000, 232000, 332000] byte/sec
+  std::vector<uint16_t> dist3;
+  dist3.push_back (0);    // User 0 distance --> MCS 28
+  dist3.push_back (3000);    // User 1 distance --> MCS 24
+  dist3.push_back (6000);    // User 2 distance --> MCS 16
+  std::vector<uint16_t> packetSize3;
+  packetSize3.push_back (100);
+  packetSize3.push_back (200);
+  packetSize3.push_back (300);
+  std::vector<uint32_t> estThrTdTbfqDl3;
+  estThrTdTbfqDl3.push_back (132000); // User 0 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl3.push_back (232000); // User 1 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqDl3.push_back (332000); // User 2 estimated TTI throughput from TDTBFQ
+  std::vector<uint32_t> estThrTdTbfqUl3;
+  estThrTdTbfqUl3.push_back (469000); // User 0 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl3.push_back (249000); // User 1 estimated TTI throughput from TDTBFQ
+  estThrTdTbfqUl3.push_back (125000); // User 2 estimated TTI throughput from TDTBFQ
+  AddTestCase (new LenaTdTbfqFfMacSchedulerTestCase2 (dist3,estThrTdTbfqDl3, estThrTdTbfqUl3,packetSize3,1));
+
+}
+
+static LenaTestTdTbfqFfMacSchedulerSuite lenaTestTdTbfqFfMacSchedulerSuite;
+
+// --------------- T E S T - C A S E   # 1 ------------------------------
+
+
+std::string 
+LenaTdTbfqFfMacSchedulerTestCase1::BuildNameString (uint16_t nUser, uint16_t dist)
+{
+  std::ostringstream oss;
+  oss << nUser << " UEs, distance " << dist << " m";
+  return oss.str ();
+}
+
+
+LenaTdTbfqFfMacSchedulerTestCase1::LenaTdTbfqFfMacSchedulerTestCase1 (uint16_t nUser, uint16_t nLc, uint16_t dist, double thrRefDl, double thrRefUl, uint16_t packetSize, uint16_t interval)
+  : TestCase (BuildNameString (nUser, dist)),
+    m_nUser (nUser),
+    m_nLc (nLc),
+    m_dist (dist),
+	m_packetSize (packetSize),
+	m_interval (interval),
+    m_thrRefDl (thrRefDl),
+    m_thrRefUl (thrRefUl)
+{
+}
+
+LenaTdTbfqFfMacSchedulerTestCase1::~LenaTdTbfqFfMacSchedulerTestCase1 ()
+{
+}
+
+void
+LenaTdTbfqFfMacSchedulerTestCase1::DoRun (void)
+{
+  Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
+  Ptr<EpcHelper>  epcHelper = CreateObject<EpcHelper> ();
+  lteHelper->SetEpcHelper (epcHelper);
+
+  Ptr<Node> pgw = epcHelper->GetPgwNode ();
+
+   // Create a single RemoteHost
+  NodeContainer remoteHostContainer;
+  remoteHostContainer.Create (1);
+  Ptr<Node> remoteHost = remoteHostContainer.Get (0);
+  InternetStackHelper internet;
+  internet.Install (remoteHostContainer);
+
+  // Create the Internet
+  PointToPointHelper p2ph;
+  p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
+  p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
+  p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.001)));
+  NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);
+  Ipv4AddressHelper ipv4h;
+  ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
+  Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);
+  // interface 0 is localhost, 1 is the p2p device
+  Ipv4Address remoteHostAddr = internetIpIfaces.GetAddress (1);
+
+  Ipv4StaticRoutingHelper ipv4RoutingHelper;
+  Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
+  remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);
+
+  Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));
+  Config::SetDefault ("ns3::LteAmc::Ber", DoubleValue (0.00005));
+  Config::SetDefault ("ns3::LteSpectrumPhy::PemEnabled", BooleanValue (false));
+
+  LogComponentDisableAll (LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbRrc", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeRrc", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbMac", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeMac", LOG_LEVEL_ALL);
+//     LogComponentEnable ("LteRlc", LOG_LEVEL_ALL);
+//
+//   LogComponentEnable ("LtePhy", LOG_LEVEL_ALL);
+//   LogComponentEnable ("LteEnbPhy", LOG_LEVEL_ALL);
+//   LogComponentEnable ("LteUePhy", LOG_LEVEL_ALL);
+
+  //   LogComponentEnable ("LteSpectrumPhy", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteInterference", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteSinrChunkProcessor", LOG_LEVEL_ALL);
+  // 
+  //   LogComponentEnable ("LtePropagationLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("ShadowingLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("PenetrationLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("MultipathLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("PathLossModel", LOG_LEVEL_ALL);
+  // 
+  //   LogComponentEnable ("LteNetDevice", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeNetDevice", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbNetDevice", LOG_LEVEL_ALL);
+
+//     LogComponentEnable ("TdTbfqFfMacScheduler", LOG_LEVEL_AlL);
+  LogComponentEnable ("LenaTestTdTbfqFfMacCheduler", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteAmc", LOG_LEVEL_ALL);
+//     LogComponentEnable ("RadioBearerStatsCalculator", LOG_LEVEL_ALL);
+
+   
+  lteHelper->SetAttribute ("PathlossModel", StringValue ("ns3::FriisSpectrumPropagationLossModel"));
+
+  // Create Nodes: eNodeB and UE
+  NodeContainer enbNodes;
+  NodeContainer ueNodes;
+  enbNodes.Create (1);
+  ueNodes.Create (m_nUser);
+
+  // Install Mobility Model
+  MobilityHelper mobility;
+  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+  mobility.Install (enbNodes);
+  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+  mobility.Install (ueNodes);
+
+  // Create Devices and install them in the Nodes (eNB and UE)
+  NetDeviceContainer enbDevs;
+  NetDeviceContainer ueDevs;
+  lteHelper->SetSchedulerType ("ns3::TdTbfqFfMacScheduler");
+  enbDevs = lteHelper->InstallEnbDevice (enbNodes);
+  ueDevs = lteHelper->InstallUeDevice (ueNodes);
+
+  // Attach a UE to a eNB
+  lteHelper->Attach (ueDevs, enbDevs.Get (0));
+
+  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (0)->GetObject<LteEnbNetDevice> ();
+  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
+  enbPhy->SetAttribute ("TxPower", DoubleValue (30.0));
+  enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
+
+  // Set UEs' position and power
+  for (int i = 0; i < m_nUser; i++)
+    {
+      Ptr<ConstantPositionMobilityModel> mm = ueNodes.Get (i)->GetObject<ConstantPositionMobilityModel> ();
+      mm->SetPosition (Vector (m_dist, 0.0, 0.0));
+      Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (i)->GetObject<LteUeNetDevice> ();
+      Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
+      uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
+      uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
+    }
+
+  // Install the IP stack on the UEs
+  internet.Install (ueNodes);
+  Ipv4InterfaceContainer ueIpIface;
+  ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueDevs));
+  // Assign IP address to UEs, and install applications
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+      Ptr<Node> ueNode = ueNodes.Get (u);
+      // Set the default gateway for the UE
+      Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());
+      ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);
+    }
+
+// Activate an EPS bearer
+  enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
+  GbrQosInformation qos;
+  qos.gbrDl = (m_packetSize + 32) * (1000/m_interval) * 8;  // bit/s, considering IP, UDP, RLC, PDCP header size
+  qos.gbrUl = 0;
+  qos.mbrDl = qos.gbrDl;
+  qos.mbrUl = 0;
+  EpsBearer bearer (q, qos);
+  lteHelper->ActivateEpsBearer (ueDevs, bearer, EpcTft::Default ());
+
+  lteHelper->EnableMacTraces ();
+  lteHelper->EnableRlcTraces ();
+  lteHelper->EnablePdcpTraces ();
+
+  // Install downlind and uplink applications
+  uint16_t dlPort = 1234;
+  uint16_t ulPort = 2000;
+  PacketSinkHelper dlPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), dlPort));
+  PacketSinkHelper ulPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), ulPort));
+  ApplicationContainer clientApps;
+  ApplicationContainer serverApps;
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+      ++ulPort;
+      serverApps.Add (dlPacketSinkHelper.Install (ueNodes.Get(u))); // receive packets from remotehost
+      serverApps.Add (ulPacketSinkHelper.Install (remoteHost));  // receive packets from UEs
+
+      UdpClientHelper dlClient (ueIpIface.GetAddress (u), dlPort); // uplink packets generator
+      dlClient.SetAttribute ("Interval", TimeValue (MilliSeconds(m_interval)));
+      dlClient.SetAttribute ("MaxPackets", UintegerValue(1000000));
+      dlClient.SetAttribute ("PacketSize", UintegerValue(m_packetSize));
+
+      UdpClientHelper ulClient (remoteHostAddr, ulPort);           // downlink packets generator
+      ulClient.SetAttribute ("Interval", TimeValue (MilliSeconds(m_interval)));
+      ulClient.SetAttribute ("MaxPackets", UintegerValue(1000000));
+      ulClient.SetAttribute ("PacketSize", UintegerValue(m_packetSize));
+
+      clientApps.Add (dlClient.Install (remoteHost));
+      clientApps.Add (ulClient.Install (ueNodes.Get(u)));
+   }
+
+  serverApps.Start (Seconds (0.001));
+  clientApps.Start (Seconds (0.001));
+
+  double simulationTime = 1.0;
+  double tolerance = 0.1;
+  Simulator::Stop (Seconds (simulationTime));
+
+  Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats ();
+  rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (simulationTime)));
+
+  Simulator::Run ();
+
+  /**
+   * Check that the downlink assignation is done in a "token bank fair queue" manner
+   */
+  NS_LOG_INFO ("DL - Test with " << m_nUser << " user(s) at distance " << m_dist);
+  std::vector <uint64_t> dlDataRxed;
+  for (int i = 0; i < m_nUser; i++)
+    {
+      // get the imsi
+      uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
+      // get the lcId
+      uint8_t lcId = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetRrc ()->GetLcIdVector ().at (0);
+	  uint64_t data = rlcStats->GetDlRxData (imsi, lcId);
+      dlDataRxed.push_back (data);
+      NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << "  thr " << (double)dlDataRxed.at (i) / simulationTime << " ref " << m_thrRefDl);
+    }
+
+  for (int i = 0; i < m_nUser; i++)
+    {
+      NS_TEST_ASSERT_MSG_EQ_TOL ((double)dlDataRxed.at (i) / simulationTime, m_thrRefDl, m_thrRefDl * tolerance, " Unfair Throughput!");
+    }
+
+  /**
+  * Check that the uplink assignation is done in a "round robin" manner
+  */
+  NS_LOG_INFO ("UL - Test with " << m_nUser << " user(s) at distance " << m_dist);
+  std::vector <uint64_t> ulDataRxed;
+  for (int i = 0; i < m_nUser; i++)
+    {
+      // get the imsi
+      uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
+      // get the lcId
+      uint8_t lcId = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetRrc ()->GetLcIdVector ().at (0);
+      ulDataRxed.push_back (rlcStats->GetUlRxData (imsi, lcId));
+      NS_LOG_INFO ("\tUser " << i << " imsi " << imsi << " bytes rxed " << (double)ulDataRxed.at (i) << "  thr " << (double)ulDataRxed.at (i) / simulationTime << " ref " << m_thrRefUl);
+    }
+
+  for (int i = 0; i < m_nUser; i++)
+    {
+      NS_TEST_ASSERT_MSG_EQ_TOL ((double)ulDataRxed.at (i) / simulationTime, m_thrRefUl, m_thrRefUl * tolerance, " Unfair Throughput!");
+    }
+  Simulator::Destroy ();
+
+}
+
+
+
+// --------------- T E S T - C A S E   # 2 ------------------------------
+
+
+std::string 
+LenaTdTbfqFfMacSchedulerTestCase2::BuildNameString (uint16_t nUser, std::vector<uint16_t> dist)
+{
+  std::ostringstream oss;
+  oss << "distances (m) = [ " ;
+  for (std::vector<uint16_t>::iterator it = dist.begin (); it != dist.end (); ++it)
+    {
+      oss << *it << " ";
+    }
+  oss << "]";
+  return oss.str ();
+}
+
+
+LenaTdTbfqFfMacSchedulerTestCase2::LenaTdTbfqFfMacSchedulerTestCase2 (std::vector<uint16_t> dist, std::vector<uint32_t> estThrTdTbfqDl, std::vector<uint32_t> estThrTdTbfqUl, std::vector<uint16_t> packetSize, uint16_t interval)
+  : TestCase (BuildNameString (dist.size (), dist)),
+    m_nUser (dist.size ()),
+    m_dist (dist),
+	m_packetSize (packetSize),
+	m_interval (interval),
+    m_estThrTdTbfqDl (estThrTdTbfqDl),
+    m_estThrTdTbfqUl (estThrTdTbfqUl)
+{
+}
+
+LenaTdTbfqFfMacSchedulerTestCase2::~LenaTdTbfqFfMacSchedulerTestCase2 ()
+{
+}
+
+void
+LenaTdTbfqFfMacSchedulerTestCase2::DoRun (void)
+{
+  Ptr<LteHelper> lteHelper = CreateObject<LteHelper> ();
+  Ptr<EpcHelper>  epcHelper = CreateObject<EpcHelper> ();
+  lteHelper->SetEpcHelper (epcHelper);
+
+  Ptr<Node> pgw = epcHelper->GetPgwNode ();
+
+   // Create a single RemoteHost
+  NodeContainer remoteHostContainer;
+  remoteHostContainer.Create (1);
+  Ptr<Node> remoteHost = remoteHostContainer.Get (0);
+  InternetStackHelper internet;
+  internet.Install (remoteHostContainer);
+
+  // Create the Internet
+  PointToPointHelper p2ph;
+  p2ph.SetDeviceAttribute ("DataRate", DataRateValue (DataRate ("100Gb/s")));
+  p2ph.SetDeviceAttribute ("Mtu", UintegerValue (1500));
+  p2ph.SetChannelAttribute ("Delay", TimeValue (Seconds (0.001)));
+  NetDeviceContainer internetDevices = p2ph.Install (pgw, remoteHost);
+  Ipv4AddressHelper ipv4h;
+  ipv4h.SetBase ("1.0.0.0", "255.0.0.0");
+  Ipv4InterfaceContainer internetIpIfaces = ipv4h.Assign (internetDevices);
+  // interface 0 is localhost, 1 is the p2p device
+  Ipv4Address remoteHostAddr = internetIpIfaces.GetAddress (1);
+
+  Ipv4StaticRoutingHelper ipv4RoutingHelper;
+  Ptr<Ipv4StaticRouting> remoteHostStaticRouting = ipv4RoutingHelper.GetStaticRouting (remoteHost->GetObject<Ipv4> ());
+  remoteHostStaticRouting->AddNetworkRouteTo (Ipv4Address ("7.0.0.0"), Ipv4Mask ("255.0.0.0"), 1);
+
+  Config::SetDefault ("ns3::LteAmc::AmcModel", EnumValue (LteAmc::PiroEW2010));
+  Config::SetDefault ("ns3::LteAmc::Ber", DoubleValue (0.00005));
+  Config::SetDefault ("ns3::LteSpectrumPhy::PemEnabled", BooleanValue (false));
+
+  LogComponentDisableAll (LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbRrc", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeRrc", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbMac", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeMac", LOG_LEVEL_ALL);
+//     LogComponentEnable ("LteRlc", LOG_LEVEL_ALL);
+//
+//   LogComponentEnable ("LtePhy", LOG_LEVEL_ALL);
+//   LogComponentEnable ("LteEnbPhy", LOG_LEVEL_ALL);
+//   LogComponentEnable ("LteUePhy", LOG_LEVEL_ALL);
+
+  //   LogComponentEnable ("LteSpectrumPhy", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteInterference", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteSinrChunkProcessor", LOG_LEVEL_ALL);
+  // 
+  //   LogComponentEnable ("LtePropagationLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("ShadowingLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("PenetrationLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("MultipathLossModel", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("PathLossModel", LOG_LEVEL_ALL);
+  // 
+  //   LogComponentEnable ("LteNetDevice", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteUeNetDevice", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteEnbNetDevice", LOG_LEVEL_ALL);
+
+//     LogComponentEnable ("TdTbfqFfMacScheduler", LOG_LEVEL_AlL);
+  LogComponentEnable ("LenaTestTdTbfqFfMacCheduler", LOG_LEVEL_ALL);
+  //   LogComponentEnable ("LteAmc", LOG_LEVEL_ALL);
+//     LogComponentEnable ("RadioBearerStatsCalculator", LOG_LEVEL_ALL);
+
+   
+  lteHelper->SetAttribute ("PathlossModel", StringValue ("ns3::FriisSpectrumPropagationLossModel"));
+
+  // Create Nodes: eNodeB and UE
+  NodeContainer enbNodes;
+  NodeContainer ueNodes;
+  enbNodes.Create (1);
+  ueNodes.Create (m_nUser);
+
+  // Install Mobility Model
+  MobilityHelper mobility;
+  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+  mobility.Install (enbNodes);
+  mobility.SetMobilityModel ("ns3::ConstantPositionMobilityModel");
+  mobility.Install (ueNodes);
+
+  // Create Devices and install them in the Nodes (eNB and UE)
+  NetDeviceContainer enbDevs;
+  NetDeviceContainer ueDevs;
+  lteHelper->SetSchedulerType ("ns3::TdTbfqFfMacScheduler");
+  enbDevs = lteHelper->InstallEnbDevice (enbNodes);
+  ueDevs = lteHelper->InstallUeDevice (ueNodes);
+
+  // Attach a UE to a eNB
+  lteHelper->Attach (ueDevs, enbDevs.Get (0));
+
+  Ptr<LteEnbNetDevice> lteEnbDev = enbDevs.Get (0)->GetObject<LteEnbNetDevice> ();
+  Ptr<LteEnbPhy> enbPhy = lteEnbDev->GetPhy ();
+  enbPhy->SetAttribute ("TxPower", DoubleValue (30.0));
+  enbPhy->SetAttribute ("NoiseFigure", DoubleValue (5.0));
+
+  // Set UEs' position and power
+  for (int i = 0; i < m_nUser; i++)
+    {
+      Ptr<ConstantPositionMobilityModel> mm = ueNodes.Get (i)->GetObject<ConstantPositionMobilityModel> ();
+      mm->SetPosition (Vector (m_dist.at(i), 0.0, 0.0));
+      Ptr<LteUeNetDevice> lteUeDev = ueDevs.Get (i)->GetObject<LteUeNetDevice> ();
+      Ptr<LteUePhy> uePhy = lteUeDev->GetPhy ();
+      uePhy->SetAttribute ("TxPower", DoubleValue (23.0));
+      uePhy->SetAttribute ("NoiseFigure", DoubleValue (9.0));
+    }
+
+  // Install the IP stack on the UEs
+  internet.Install (ueNodes);
+  Ipv4InterfaceContainer ueIpIface;
+  ueIpIface = epcHelper->AssignUeIpv4Address (NetDeviceContainer (ueDevs));
+  // Assign IP address to UEs, and install applications
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+      Ptr<Node> ueNode = ueNodes.Get (u);
+      // Set the default gateway for the UE
+      Ptr<Ipv4StaticRouting> ueStaticRouting = ipv4RoutingHelper.GetStaticRouting (ueNode->GetObject<Ipv4> ());
+      ueStaticRouting->SetDefaultRoute (epcHelper->GetUeDefaultGatewayAddress (), 1);
+    }
+
+// Activate an EPS bearer
+  enum EpsBearer::Qci q = EpsBearer::GBR_CONV_VOICE;
+  GbrQosInformation qos;
+  uint16_t mbrDl = 0;
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+		mbrDl = mbrDl + m_packetSize.at(u);
+    }
+  mbrDl = mbrDl/ueNodes.GetN();
+  qos.gbrDl = (mbrDl + 32) * (1000/m_interval) * 8;  // bit/s, considering IP, UDP, RLC, PDCP header size
+  qos.gbrUl = 0;
+  qos.mbrDl = qos.gbrDl;
+  qos.mbrUl = 0;
+  EpsBearer bearer (q, qos);
+  lteHelper->ActivateEpsBearer (ueDevs, bearer, EpcTft::Default ());
+
+  lteHelper->EnableMacTraces ();
+  lteHelper->EnableRlcTraces ();
+  lteHelper->EnablePdcpTraces ();
+
+  // Install downlind and uplink applications
+  uint16_t dlPort = 1234;
+  uint16_t ulPort = 2000;
+  PacketSinkHelper dlPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), dlPort));
+  PacketSinkHelper ulPacketSinkHelper ("ns3::UdpSocketFactory", InetSocketAddress (Ipv4Address::GetAny (), ulPort));
+  ApplicationContainer clientApps;
+  ApplicationContainer serverApps;
+  for (uint32_t u = 0; u < ueNodes.GetN (); ++u)
+    {
+      ++ulPort;
+      serverApps.Add (dlPacketSinkHelper.Install (ueNodes.Get(u))); // receive packets from remotehost
+      serverApps.Add (ulPacketSinkHelper.Install (remoteHost));  // receive packets from UEs
+
+      UdpClientHelper dlClient (ueIpIface.GetAddress (u), dlPort); // uplink packets generator
+      dlClient.SetAttribute ("Interval", TimeValue (MilliSeconds(m_interval)));
+      dlClient.SetAttribute ("MaxPackets", UintegerValue(1000000));
+      dlClient.SetAttribute ("PacketSize", UintegerValue(m_packetSize.at(u)));
+
+      UdpClientHelper ulClient (remoteHostAddr, ulPort);           // downlink packets generator
+      ulClient.SetAttribute ("Interval", TimeValue (MilliSeconds(m_interval)));
+      ulClient.SetAttribute ("MaxPackets", UintegerValue(1000000));
+      ulClient.SetAttribute ("PacketSize", UintegerValue(m_packetSize.at(u)));
+
+      clientApps.Add (dlClient.Install (remoteHost));
+      clientApps.Add (ulClient.Install (ueNodes.Get(u)));
+   }
+
+  serverApps.Start (Seconds (0.001));
+  clientApps.Start (Seconds (0.001));
+
+  double simulationTime = 1.0;
+  double tolerance = 0.1;
+  Simulator::Stop (Seconds (simulationTime));
+
+  Ptr<RadioBearerStatsCalculator> rlcStats = lteHelper->GetRlcStats ();
+  rlcStats->SetAttribute ("EpochDuration", TimeValue (Seconds (simulationTime)));
+
+  Simulator::Run ();
+ 
+  /**
+  * Check that the assignation is done in a "token bank fair queue" manner
+  */
+  NS_LOG_INFO ("DL - Test with " << m_nUser << " user(s)");
+  std::vector <uint64_t> dlDataRxed;
+  for (int i = 0; i < m_nUser; i++)
+    {
+      // get the imsi
+      uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
+      // get the lcId
+      uint8_t lcId = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetRrc ()->GetLcIdVector ().at (0);
+      dlDataRxed.push_back (rlcStats->GetDlRxData (imsi, lcId));
+      NS_LOG_INFO ("\tUser " << i << " dist " << m_dist.at (i) << " imsi " << imsi << " bytes rxed " << (double)dlDataRxed.at (i) << "  thr " << (double)dlDataRxed.at (i) / simulationTime << " ref " << m_nUser);
+    }
+
+  for (int i = 0; i < m_nUser; i++)
+    {
+      NS_TEST_ASSERT_MSG_EQ_TOL ((double)dlDataRxed.at (i) / simulationTime, m_estThrTdTbfqDl.at(i), m_estThrTdTbfqDl.at(i) * tolerance, " Unfair Throughput!");
+    }
+
+  /**
+  * Check that the assignation in uplink is done in a round robin manner.
+  */
+
+  NS_LOG_INFO ("UL - Test with " << m_nUser);
+  std::vector <uint64_t> ulDataRxed;
+  for (int i = 0; i < m_nUser; i++)
+    {
+      // get the imsi
+      uint64_t imsi = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetImsi ();
+      // get the lcId
+      uint8_t lcId = ueDevs.Get (i)->GetObject<LteUeNetDevice> ()->GetRrc ()->GetLcIdVector ().at (0);
+      ulDataRxed.push_back (rlcStats->GetUlRxData (imsi, lcId));
+      NS_LOG_INFO ("\tUser " << i << " dist " << m_dist.at (i) << " bytes rxed " << (double)ulDataRxed.at (i) << "  thr " << (double)ulDataRxed.at (i) / simulationTime << " ref " << (double)m_estThrTdTbfqUl.at (i));
+      //NS_TEST_ASSERT_MSG_EQ_TOL ((double)ulDataRxed.at (i) / simulationTime, (double)m_estThrTdTbfqUl.at (i), (double)m_estThrTdTbfqUl.at (i) * tolerance, " Unfair Throughput!");
+    }
+  Simulator::Destroy ();
+
+}
+
+
+} // namespace ns3
+
+
+
+
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/lte/test/lte-test-tdtbfq-ff-mac-scheduler.h	Sun Aug 05 21:33:37 2012 -0300
@@ -0,0 +1,91 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2011 Centre Tecnologic de Telecomunicacions de Catalunya (CTTC)
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation;
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * Author: Marco Miozzo <marco.miozzo@cttc.es>,
+ *         Nicola Baldo <nbaldo@cttc.es>
+ *         Dizhi Zhou <dizhi.zhou@gmail.com>
+ */
+
+#ifndef LENA_TEST_TDTBFQ_FF_MAC_SCHEDULER_H
+#define LENA_TEST_TDTBFQ_FF_MAC_SCHEDULER_H
+
+#include "ns3/simulator.h"
+#include "ns3/test.h"
+
+
+namespace ns3 {
+
+
+/**
+* This system test program creates different test cases with a single eNB and 
+* several UEs, all having the same Radio Bearer specification. In each test 
+* case, the UEs see the same SINR from the eNB; different test cases are 
+* implemented obtained by using different SINR values and different numbers of 
+* UEs. The test consists on checking that the obtained throughput performance 
+* is equal among users is consistent with the definition of token bank fair  
+* queue scheduling
+*/
+class LenaTdTbfqFfMacSchedulerTestCase1 : public TestCase
+{
+public:
+  LenaTdTbfqFfMacSchedulerTestCase1 (uint16_t nUser, uint16_t nLc, uint16_t dist, double thrRefDl, double thrRefUl, uint16_t packetSize, uint16_t interval);
+  virtual ~LenaTdTbfqFfMacSchedulerTestCase1 ();
+
+private:
+  static std::string BuildNameString (uint16_t nUser, uint16_t dist);
+  virtual void DoRun (void);
+  uint16_t m_nUser;
+  uint16_t m_nLc;
+  uint16_t m_dist;
+  uint16_t m_packetSize;  // byte
+  uint16_t m_interval;    // ms
+  double m_thrRefDl;
+  double m_thrRefUl;
+};
+
+
+class LenaTdTbfqFfMacSchedulerTestCase2 : public TestCase
+{
+public:
+  LenaTdTbfqFfMacSchedulerTestCase2 (std::vector<uint16_t> dist, std::vector<uint32_t> estThrTdTbfqDl, std::vector<uint32_t> estThrTdTbfqUl, std::vector<uint16_t> packetSize, uint16_t interval);
+  virtual ~LenaTdTbfqFfMacSchedulerTestCase2 ();
+
+private:
+  static std::string BuildNameString (uint16_t nUser, std::vector<uint16_t> dist);
+  virtual void DoRun (void);
+  uint16_t m_nUser;
+  std::vector<uint16_t> m_dist;
+  std::vector<uint16_t> m_packetSize;  // byte
+  uint16_t m_interval;    // ms
+  std::vector<uint32_t> m_estThrTdTbfqDl;
+  std::vector<uint32_t> m_estThrTdTbfqUl;
+};
+
+
+class LenaTestTdTbfqFfMacSchedulerSuite : public TestSuite
+{
+public:
+  LenaTestTdTbfqFfMacSchedulerSuite ();
+};
+
+
+
+
+} // namespace ns3
+
+
+#endif /* LENA_TEST_TDTBFQ_FF_MAC_SCHEDULER_H */
--- a/src/lte/wscript	Sun Jul 01 21:17:35 2012 -0300
+++ b/src/lte/wscript	Sun Aug 05 21:33:37 2012 -0300
@@ -62,6 +62,8 @@
         'model/tta-ff-mac-scheduler.cc',
         'model/tdbet-ff-mac-scheduler.cc',
         'model/fdbet-ff-mac-scheduler.cc',
+        'model/fdtbfq-ff-mac-scheduler.cc',
+        'model/tdtbfq-ff-mac-scheduler.cc',
         'model/epc-gtpu-header.cc',
         'model/trace-fading-loss-model.cc',
         'model/epc-enb-application.cc',
@@ -86,6 +88,8 @@
         'test/lte-test-tta-ff-mac-scheduler.cc',
         'test/lte-test-tdbet-ff-mac-scheduler.cc',
         'test/lte-test-fdbet-ff-mac-scheduler.cc',
+        'test/lte-test-fdtbfq-ff-mac-scheduler.cc',
+        'test/lte-test-tdtbfq-ff-mac-scheduler.cc',
         'test/lte-test-earfcn.cc',
         'test/lte-test-spectrum-value-helper.cc',
         'test/lte-test-pathloss-model.cc',
@@ -168,13 +172,41 @@
         'model/tta-ff-mac-scheduler.h',
         'model/tdbet-ff-mac-scheduler.h',
         'model/fdbet-ff-mac-scheduler.h',
+        'model/fdtbfq-ff-mac-scheduler.h',
+        'model/tdtbfq-ff-mac-scheduler.h',
         'model/trace-fading-loss-model.h',
         'model/epc-gtpu-header.h',
         'model/epc-enb-application.h',
         'model/epc-sgw-pgw-application.h',
+        'test/lte-test-downlink-sinr.h',
+        'test/lte-test-uplink-sinr.h',
+        'test/lte-test-link-adaptation.h',
+        'test/lte-test-interference.h',
+        'test/lte-test-sinr-chunk-processor.h',
+        'test/lte-test-ue-phy.h',
+        'test/lte-test-rr-ff-mac-scheduler.h',
+        'test/lte-test-pf-ff-mac-scheduler.h',
+        'test/lte-test-fdmt-ff-mac-scheduler.h',
+        'test/lte-test-tdmt-ff-mac-scheduler.h',
+        'test/lte-test-tta-ff-mac-scheduler.h',
+        'test/lte-test-tdbet-ff-mac-scheduler.h',
+        'test/lte-test-fdbet-ff-mac-scheduler.h',
+        'test/lte-test-fdtbfq-ff-mac-scheduler.h',
+        'test/lte-test-tdtbfq-ff-mac-scheduler.h',
+        'test/lte-test-phy-error-model.h',
+        'test/lte-test-pathloss-model.h',
+        'test/epc-test-gtpu.h',
+        'test/lte-test-entities.h',
+        'test/lte-simple-net-device.h',
+        'test/lte-simple-helper.h',
+        'test/lte-test-rlc-um-transmitter.h',
+        'test/lte-test-rlc-am-transmitter.h',
+        'test/lte-test-rlc-um-e2e.h',
+        'test/lte-test-rlc-am-e2e.h',
         'model/epc-tft.h',
         'model/epc-tft-classifier.h',
         'model/lte-mi-error-model.h',
+        'test/lte-test-mimo.h'
         ]
 
     if (bld.env['ENABLE_EXAMPLES']):