# HG changeset patch
# User Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
# Date 1204513419 -3600
# Node ID 2e6e1a6e0d9474ce55dfea3382680e478a439a42
# Parent  401bfe8c0176a6400eea0d929c3f3aaaf54cb7cb
port last rate control algorithms

diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/amrr-wifi-manager.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/wifi/amrr-wifi-manager.cc	Mon Mar 03 04:03:39 2008 +0100
@@ -0,0 +1,290 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2003,2007 INRIA
+ *
+ * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+
+#include "amrr-wifi-manager.h"
+#include "ns3/simulator.h"
+#include "ns3/log.h"
+#include "ns3/uinteger.h"
+#include "ns3/double.h"
+
+NS_LOG_COMPONENT_DEFINE ("AmrrWifiRemoteStation");
+
+namespace ns3 {
+
+NS_OBJECT_ENSURE_REGISTERED (AmrrWifiManager);
+
+TypeId
+AmrrWifiManager::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("AmrrWifiManager")
+    .SetParent<WifiRemoteStationManager> ()
+    .AddConstructor<AmrrWifiManager> ()
+    .AddAttribute ("UpdatePeriod",
+                   "The interval between decisions about rate control changes",
+                   Seconds (1.0),
+                   MakeTimeAccessor (&AmrrWifiManager::m_updatePeriod),
+                   MakeTimeChecker ())
+    .AddAttribute ("FailureRatio",
+                   "Ratio of minimum erronous transmissions needed to switch to a lower rate",
+                   Double (1.0/3.0),
+                   MakeDoubleAccessor (&AmrrWifiManager::m_failureRatio),
+                   MakeDoubleChecker (0.0, 1.0))
+    .AddAttribute ("SuccessRatio",
+                   "Ratio of maximum erronous transmissions needed to switch to a higher rate",
+                   Double (1.0/10.0),
+                   MakeDoubleAccessor (&AmrrWifiManager::m_successRatio),
+                   MakeDoubleChecker (0.0, 1.0))
+    .AddAttribute ("MaxSuccessThreshold",
+                   "Maximum number of consecutive success periods needed to switch to a higher rate",
+                   Uinteger (10),
+                   MakeUintegerAccessor (&AmrrWifiManager::m_maxSuccessThreshold),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("MinSuccessThreshold",
+                   "Minimum number of consecutive success periods needed to switch to a higher rate",
+                   Uinteger (1),
+                   MakeUintegerAccessor (&AmrrWifiManager::m_minSuccessThreshold),
+                   MakeUintegerChecker<uint32_t> ())
+    ;
+  return tid;
+}
+
+AmrrWifiManager::AmrrWifiManager ()
+{}
+WifiRemoteStation *
+AmrrWifiManager::CreateStation (void)
+{
+  return new AmrrWifiRemoteStation (this);
+}
+
+AmrrWifiRemoteStation::AmrrWifiRemoteStation (Ptr<AmrrWifiManager> stations)
+  : m_stations (stations),
+    m_nextModeUpdate (Simulator::Now () + stations->m_updatePeriod),
+    m_tx_ok (0),
+    m_tx_err (0),
+    m_tx_retr (0),
+    m_retry (0),
+    m_txrate (0),
+    m_successThreshold (m_stations->m_minSuccessThreshold),
+    m_success (0),
+    m_recovery (false)
+{}
+AmrrWifiRemoteStation::~AmrrWifiRemoteStation ()
+{}
+
+void 
+AmrrWifiRemoteStation::ReportRxOk (double rxSnr, WifiMode txMode)
+{}
+void 
+AmrrWifiRemoteStation::ReportRtsFailed (void)
+{}
+void 
+AmrrWifiRemoteStation::ReportDataFailed (void)
+{
+  m_retry++;
+  m_tx_retr++;
+}
+void 
+AmrrWifiRemoteStation::ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr)
+{}
+void 
+AmrrWifiRemoteStation::ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr)
+{
+  m_retry = 0;
+  m_tx_ok++;
+}
+void 
+AmrrWifiRemoteStation::ReportFinalRtsFailed (void)
+{}
+void 
+AmrrWifiRemoteStation::ReportFinalDataFailed (void)
+{
+  m_retry = 0;
+  m_tx_err++;
+}
+bool
+AmrrWifiRemoteStation::IsMinRate (void) const
+{
+  return (m_txrate == 0);
+}
+bool
+AmrrWifiRemoteStation::IsMaxRate (void) const
+{
+  NS_ASSERT (m_txrate + 1 <= GetNSupportedModes ());
+  return (m_txrate + 1 == GetNSupportedModes ());
+}
+bool
+AmrrWifiRemoteStation::IsSuccess (void) const
+{
+  return (m_tx_retr + m_tx_err) < m_tx_ok * m_stations->m_successRatio;
+}
+bool
+AmrrWifiRemoteStation::IsFailure (void) const
+{
+  return (m_tx_retr + m_tx_err) > m_tx_ok * m_stations->m_failureRatio;
+}
+bool
+AmrrWifiRemoteStation::IsEnough (void) const
+{
+  return (m_tx_retr + m_tx_err + m_tx_ok) > 10;
+}
+void 
+AmrrWifiRemoteStation::ResetCnt (void)
+{
+  m_tx_ok = 0;
+  m_tx_err = 0;
+  m_tx_retr = 0;
+}
+void 
+AmrrWifiRemoteStation::IncreaseRate (void)
+{
+  m_txrate++;
+  NS_ASSERT (m_txrate < GetNSupportedModes ());
+}
+void 
+AmrrWifiRemoteStation::DecreaseRate (void)
+{
+  m_txrate--;
+}
+
+void
+AmrrWifiRemoteStation::UpdateMode (void)
+{
+  if (Simulator::Now () < m_nextModeUpdate)
+    {
+      return;
+    }
+  m_nextModeUpdate = Simulator::Now () + m_stations->m_updatePeriod;
+  NS_LOG_DEBUG ("Update");
+
+  bool needChange = false;
+
+  if (IsSuccess () && IsEnough ()) 
+    {
+      m_success++;
+      NS_LOG_DEBUG ("++ success="<<m_success<<" successThreshold="<<m_successThreshold<<
+                    " tx_ok="<<m_tx_ok<<" tx_err="<<m_tx_err<<" tx_retr="<<m_tx_retr<<
+                    " rate="<<m_txrate<<" n-supported-rates="<<GetNSupportedModes ());
+      if (m_success >= m_successThreshold &&
+          !IsMaxRate ()) 
+        {
+          m_recovery = true;
+          m_success = 0;
+          IncreaseRate ();
+          needChange = true;
+        } 
+      else 
+        {
+          m_recovery = false;
+        }
+    } 
+  else if (IsFailure ()) 
+    {
+      m_success = 0;
+      NS_LOG_DEBUG ("-- success="<<m_success<<" successThreshold="<<m_successThreshold<<
+                    " tx_ok="<<m_tx_ok<<" tx_err="<<m_tx_err<<" tx_retr="<<m_tx_retr<<
+                    " rate="<<m_txrate<<" n-supported-rates="<<GetNSupportedModes ());
+      if (!IsMinRate ()) 
+        {
+          if (m_recovery) 
+            {
+              m_successThreshold *= 2;
+              m_successThreshold = std::min (m_successThreshold,
+                                             m_stations->m_maxSuccessThreshold);
+            } 
+          else 
+            {
+              m_successThreshold = m_stations->m_minSuccessThreshold;
+            }
+          m_recovery = false;
+          DecreaseRate ();
+          needChange = true;
+        } 
+      else 
+        {
+          m_recovery = false;
+        }
+    }
+  if (IsEnough () || needChange) 
+    {
+      NS_LOG_DEBUG ("Reset");
+      ResetCnt ();
+    }
+}
+
+Ptr<WifiRemoteStationManager>
+AmrrWifiRemoteStation::GetManager (void) const
+{
+  return m_stations;
+}
+WifiMode 
+AmrrWifiRemoteStation::DoGetDataMode (uint32_t size)
+{
+  UpdateMode ();
+  NS_ASSERT (m_txrate < GetNSupportedModes ());
+  uint32_t rateIndex;
+  if (m_retry < 1)
+    {
+      rateIndex = m_txrate;
+    }
+  else if (m_retry < 2)
+    {
+      if (m_txrate > 0)
+        {
+          rateIndex = m_txrate - 1;
+        }
+      else
+        {
+          rateIndex = m_txrate;
+        }
+    }
+  else if (m_retry < 3)
+    {
+      if (m_txrate > 1)
+        {
+          rateIndex = m_txrate - 2;
+        }
+      else
+        {
+          rateIndex = m_txrate;
+        }
+    }
+  else
+    {
+      if (m_txrate > 2)
+        {
+          rateIndex = m_txrate - 3;
+        }
+      else
+        {
+          rateIndex = m_txrate;
+        }
+    }
+
+  return GetSupportedMode (rateIndex);
+}
+WifiMode 
+AmrrWifiRemoteStation::DoGetRtsMode (void)
+{
+  UpdateMode ();
+  // XXX: can we implement something smarter ?
+  return GetSupportedMode (0);
+}
+
+} // namespace ns3
diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/amrr-wifi-manager.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/wifi/amrr-wifi-manager.h	Mon Mar 03 04:03:39 2008 +0100
@@ -0,0 +1,93 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2003,2007 INRIA
+ *
+ * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#ifndef AMRR_WIFI_MANAGER_H
+#define AMRR_WIFI_MANAGER_H
+
+#include "wifi-remote-station-manager.h"
+#include "ns3/nstime.h"
+
+namespace ns3 {
+
+class AmrrWifiManager : public WifiRemoteStationManager
+{
+public:
+  static TypeId GetTypeId (void);
+
+  AmrrWifiManager ();
+
+private:
+  friend class AmrrWifiRemoteStation;
+  virtual WifiRemoteStation *CreateStation (void);
+
+  Time m_updatePeriod;
+  double m_failureRatio;
+  double m_successRatio;
+  uint32_t m_maxSuccessThreshold;
+  uint32_t m_minSuccessThreshold;
+};
+
+/**
+ */
+class AmrrWifiRemoteStation : public WifiRemoteStation
+{
+public:
+  AmrrWifiRemoteStation (Ptr<AmrrWifiManager> stations);
+
+  virtual ~AmrrWifiRemoteStation ();
+
+  virtual void ReportRxOk (double rxSnr, WifiMode txMode);
+  virtual void ReportRtsFailed (void);
+  virtual void ReportDataFailed (void);
+  virtual void ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr);
+  virtual void ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr);
+  virtual void ReportFinalRtsFailed (void);
+  virtual void ReportFinalDataFailed (void);
+
+private:
+  virtual Ptr<WifiRemoteStationManager> GetManager (void) const;
+  virtual WifiMode DoGetDataMode (uint32_t size);
+  virtual WifiMode DoGetRtsMode (void);
+
+  void UpdateRetry (void);
+  void UpdateMode (void);
+  void ResetCnt (void);
+  void IncreaseRate (void);
+  void DecreaseRate (void);
+  bool IsMinRate (void) const;
+  bool IsMaxRate (void) const;
+  bool IsSuccess (void) const;
+  bool IsFailure (void) const;
+  bool IsEnough (void) const;
+
+  Ptr<AmrrWifiManager> m_stations;
+  Time m_nextModeUpdate;
+  uint32_t m_tx_ok;
+  uint32_t m_tx_err;
+  uint32_t m_tx_retr;
+  uint32_t m_retry;
+  uint32_t m_txrate;
+  uint32_t m_successThreshold;
+  uint32_t m_success;
+  bool m_recovery;
+};
+
+} // namespace ns3
+
+#endif /* AMRR_WIFI_MANAGER_H */
diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/onoe-mac-stations.cc
--- a/src/devices/wifi/onoe-mac-stations.cc	Mon Mar 03 02:07:40 2008 +0100
+++ b/src/devices/wifi/onoe-mac-stations.cc	Mon Mar 03 04:03:39 2008 +0100
@@ -18,13 +18,11 @@
  * Author: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
  */
 
-#include "onoe-mac-stations.h"
-#include "ns3/default-value.h"
-#include "ns3/time-default-value.h"
+#include "onoe-wifi-manager.h"
 #include "ns3/simulator.h"
 #include "ns3/log.h"
 
-NS_LOG_COMPONENT_DEFINE ("OnoeMacStation");
+NS_LOG_COMPONENT_DEFINE ("OnoeWifiRemoteStation");
 
 namespace ns3 {
 
@@ -41,19 +39,19 @@
  "Raise threshold",
  10);
 
-OnoeMacStations::OnoeMacStations (WifiMode defaultTxMode)
+OnoeWifiManager::OnoeWifiManager (WifiMode defaultTxMode)
   : MacStations (defaultTxMode),
     m_updatePeriod (g_updatePeriod.GetValue ()),
     m_addCreditThreshold (g_addCreditThreshold.GetValue ()),
     m_raiseThreshold (g_raiseThreshold.GetValue ())
 {}
 MacStation *
-OnoeMacStations::CreateStation (void)
+OnoeWifiManager::CreateStation (void)
 {
-  return new OnoeMacStation (this);
+  return new OnoeWifiRemoteStation (this);
 }
 
-OnoeMacStation::OnoeMacStation (OnoeMacStations *stations)
+OnoeWifiRemoteStation::OnoeWifiRemoteStation (OnoeWifiManager *stations)
   : m_stations (stations),
     m_nextModeUpdate (Simulator::Now () + stations->m_updatePeriod),
     m_shortRetry (0),
@@ -64,52 +62,52 @@
     m_tx_upper (0),
     m_txrate (0)
 {}
-OnoeMacStation::~OnoeMacStation ()
+OnoeWifiRemoteStation::~OnoeWifiRemoteStation ()
 {}
 
 void 
-OnoeMacStation::ReportRxOk (double rxSnr, WifiMode txMode)
+OnoeWifiRemoteStation::ReportRxOk (double rxSnr, WifiMode txMode)
 {}
 void 
-OnoeMacStation::ReportRtsFailed (void)
+OnoeWifiRemoteStation::ReportRtsFailed (void)
 {
   m_shortRetry++;
 }
 void 
-OnoeMacStation::ReportDataFailed (void)
+OnoeWifiRemoteStation::ReportDataFailed (void)
 {
   m_longRetry++;
 }
 void 
-OnoeMacStation::ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr)
+OnoeWifiRemoteStation::ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr)
 {}
 void 
-OnoeMacStation::ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr)
+OnoeWifiRemoteStation::ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr)
 {
   UpdateRetry ();
   m_tx_ok++;
 }
 void 
-OnoeMacStation::ReportFinalRtsFailed (void)
+OnoeWifiRemoteStation::ReportFinalRtsFailed (void)
 {
   UpdateRetry ();
   m_tx_err++;
 }
 void 
-OnoeMacStation::ReportFinalDataFailed (void)
+OnoeWifiRemoteStation::ReportFinalDataFailed (void)
 {
   UpdateRetry ();
   m_tx_err++;
 }
 void
-OnoeMacStation::UpdateRetry (void)
+OnoeWifiRemoteStation::UpdateRetry (void)
 {
   m_tx_retr += m_shortRetry + m_longRetry;
   m_shortRetry = 0;
   m_longRetry = 0;
 }
 void
-OnoeMacStation::UpdateMode (void)
+OnoeWifiRemoteStation::UpdateMode (void)
 {
   if (Simulator::Now () < m_nextModeUpdate)
     {
@@ -173,13 +171,13 @@
 
 }
 
-OnoeMacStations *
-OnoeMacStation::GetStations (void) const
+OnoeWifiManager *
+OnoeWifiRemoteStation::GetStations (void) const
 {
   return m_stations;
 }
 WifiMode 
-OnoeMacStation::DoGetDataMode (uint32_t size)
+OnoeWifiRemoteStation::DoGetDataMode (uint32_t size)
 {
   UpdateMode ();
   NS_ASSERT (m_txrate < GetNSupportedModes ());
@@ -224,7 +222,7 @@
   return GetSupportedMode (rateIndex);
 }
 WifiMode 
-OnoeMacStation::DoGetRtsMode (void)
+OnoeWifiRemoteStation::DoGetRtsMode (void)
 {
   UpdateMode ();
   // XXX: can we implement something smarter ?
diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/onoe-mac-stations.h
--- a/src/devices/wifi/onoe-mac-stations.h	Mon Mar 03 02:07:40 2008 +0100
+++ b/src/devices/wifi/onoe-mac-stations.h	Mon Mar 03 04:03:39 2008 +0100
@@ -20,19 +20,19 @@
 #ifndef ONOE_MAC_STATIONS_H
 #define ONOE_MAC_STATIONS_H
 
-#include "mac-stations.h"
+#include "wifi-remote-station-manager.h"
 #include "ns3/nstime.h"
 
 namespace ns3 {
 
-class OnoeMacStations : public MacStations
+class OnoeWifiManager : public WifiRemoteStationManager
 {
 public:
-  OnoeMacStations (WifiMode defaultTxMode);
+  OnoeWifiManager ();
 
 private:
-  friend class OnoeMacStation;
-  virtual MacStation *CreateStation (void);
+  friend class OnoeWifiRemoteStation;
+  virtual WifiRemoteStation *CreateStation (void);
 
   Time m_updatePeriod;
   uint32_t m_addCreditThreshold;
@@ -48,12 +48,12 @@
  * any publication or reference about this algorithm beyond the madwifi
  * source code.
  */
-class OnoeMacStation : public MacStation
+class OnoeWifiRemoteStation : public WifiRemoteStation
 {
 public:
-  OnoeMacStation (OnoeMacStations *stations);
+  OnoeWifiRemoteStation (OnoeWifiManager *stations);
 
-  virtual ~OnoeMacStation ();
+  virtual ~OnoeWifiRemoteStation ();
 
   virtual void ReportRxOk (double rxSnr, WifiMode txMode);
   virtual void ReportRtsFailed (void);
@@ -64,14 +64,14 @@
   virtual void ReportFinalDataFailed (void);
 
 private:
-  virtual OnoeMacStations *GetStations (void) const;
+  virtual OnoeWifiManager *GetStations (void) const;
   virtual WifiMode DoGetDataMode (uint32_t size);
   virtual WifiMode DoGetRtsMode (void);
 
   void UpdateRetry (void);
   void UpdateMode (void);
 
-  OnoeMacStations *m_stations;
+  OnoeWifiManager *m_stations;
   Time m_nextModeUpdate;
   uint32_t m_shortRetry;
   uint32_t m_longRetry;
diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/onoe-wifi-manager.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/wifi/onoe-wifi-manager.cc	Mon Mar 03 04:03:39 2008 +0100
@@ -0,0 +1,239 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2003,2007 INRIA
+ *
+ * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+
+#include "onoe-wifi-manager.h"
+#include "ns3/simulator.h"
+#include "ns3/log.h"
+#include "ns3/uinteger.h"
+
+NS_LOG_COMPONENT_DEFINE ("OnoeWifiRemoteStation");
+
+namespace ns3 {
+
+TypeId
+OnoeWifiManager::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("OnoeWifiManager")
+    .SetParent<WifiRemoteStationManager> ()
+    .AddConstructor<OnoeWifiManager> ()
+    .AddAttribute ("UpdatePeriod",
+                   "The interval between decisions about rate control changes",
+                   Seconds (1.0),
+                   MakeTimeAccessor (&OnoeWifiManager::m_updatePeriod),
+                   MakeTimeChecker ())
+    .AddAttribute ("RaiseThreshold", "XXX",
+                   Uinteger (10),
+                   MakeUintegerAccessor (&OnoeWifiManager::m_raiseThreshold),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("AddCreditThreshold", "Add credit threshold",
+                   Uinteger (10),
+                   MakeUintegerAccessor (&OnoeWifiManager::m_addCreditThreshold),
+                   MakeUintegerChecker<uint32_t> ())
+    ;
+  return tid;
+}
+
+OnoeWifiManager::OnoeWifiManager ()
+{}
+WifiRemoteStation *
+OnoeWifiManager::CreateStation (void)
+{
+  return new OnoeWifiRemoteStation (this);
+}
+
+OnoeWifiRemoteStation::OnoeWifiRemoteStation (Ptr<OnoeWifiManager> stations)
+  : m_stations (stations),
+    m_nextModeUpdate (Simulator::Now () + stations->m_updatePeriod),
+    m_shortRetry (0),
+    m_longRetry (0),
+    m_tx_ok (0),
+    m_tx_err (0),
+    m_tx_retr (0),
+    m_tx_upper (0),
+    m_txrate (0)
+{}
+OnoeWifiRemoteStation::~OnoeWifiRemoteStation ()
+{}
+
+void 
+OnoeWifiRemoteStation::ReportRxOk (double rxSnr, WifiMode txMode)
+{}
+void 
+OnoeWifiRemoteStation::ReportRtsFailed (void)
+{
+  m_shortRetry++;
+}
+void 
+OnoeWifiRemoteStation::ReportDataFailed (void)
+{
+  m_longRetry++;
+}
+void 
+OnoeWifiRemoteStation::ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr)
+{}
+void 
+OnoeWifiRemoteStation::ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr)
+{
+  UpdateRetry ();
+  m_tx_ok++;
+}
+void 
+OnoeWifiRemoteStation::ReportFinalRtsFailed (void)
+{
+  UpdateRetry ();
+  m_tx_err++;
+}
+void 
+OnoeWifiRemoteStation::ReportFinalDataFailed (void)
+{
+  UpdateRetry ();
+  m_tx_err++;
+}
+void
+OnoeWifiRemoteStation::UpdateRetry (void)
+{
+  m_tx_retr += m_shortRetry + m_longRetry;
+  m_shortRetry = 0;
+  m_longRetry = 0;
+}
+void
+OnoeWifiRemoteStation::UpdateMode (void)
+{
+  if (Simulator::Now () < m_nextModeUpdate)
+    {
+      return;
+    }
+  m_nextModeUpdate = Simulator::Now () + m_stations->m_updatePeriod;
+  /**
+   * The following 20 lines of code were copied from the Onoe
+   * rate control kernel module used in the madwifi driver.
+   */
+
+  int dir = 0, enough;
+  uint32_t nrate;
+  enough = (m_tx_ok + m_tx_err >= 10);
+
+  /* no packet reached -> down */
+  if (m_tx_err > 0 && m_tx_ok == 0)
+    dir = -1;
+
+  /* all packets needs retry in average -> down */
+  if (enough && m_tx_ok < m_tx_retr)
+    dir = -1;
+
+  /* no error and less than rate_raise% of packets need retry -> up */
+  if (enough && m_tx_err == 0 &&
+      m_tx_retr < (m_tx_ok * m_stations->m_addCreditThreshold) / 100)
+    dir = 1;
+
+  NS_LOG_DEBUG (this << " ok " << m_tx_ok << " err " << m_tx_err << " retr " << m_tx_retr <<
+                " upper " << m_tx_upper << " dir " << dir);
+
+  nrate = m_txrate;
+  switch (dir) {
+  case 0:
+    if (enough && m_tx_upper > 0)
+      m_tx_upper--;
+    break;
+  case -1:
+    if (nrate > 0) {
+      nrate--;
+    }
+    m_tx_upper = 0;
+    break;
+  case 1:
+    /* raise rate if we hit rate_raise_threshold */
+    if (++m_tx_upper < m_stations->m_raiseThreshold)
+      break;
+    m_tx_upper = 0;
+    if (nrate + 1 < GetNSupportedModes ()) {
+      nrate++;
+    }
+    break;
+  }
+
+  if (nrate != m_txrate) {
+    NS_ASSERT (nrate < GetNSupportedModes ());
+    m_txrate = nrate;
+    m_tx_ok = m_tx_err = m_tx_retr = m_tx_upper = 0;
+  } else if (enough)
+    m_tx_ok = m_tx_err = m_tx_retr = 0;
+
+}
+
+Ptr<WifiRemoteStationManager>
+OnoeWifiRemoteStation::GetManager (void) const
+{
+  return m_stations;
+}
+WifiMode 
+OnoeWifiRemoteStation::DoGetDataMode (uint32_t size)
+{
+  UpdateMode ();
+  NS_ASSERT (m_txrate < GetNSupportedModes ());
+  uint32_t rateIndex;
+  if (m_longRetry < 4)
+    {
+      rateIndex = m_txrate;
+    }
+  else if (m_longRetry < 6)
+    {
+      if (m_txrate > 0)
+        {
+          rateIndex = m_txrate - 1;
+        }
+      else
+        {
+          rateIndex = m_txrate;
+        }
+    }
+  else if (m_longRetry < 8)
+    {
+      if (m_txrate > 1)
+        {
+          rateIndex = m_txrate - 2;
+        }
+      else
+        {
+          rateIndex = m_txrate;
+        }
+    }
+  else
+    {
+      if (m_txrate > 2)
+        {
+          rateIndex = m_txrate - 3;
+        }
+      else
+        {
+          rateIndex = m_txrate;
+        }
+    }
+  return GetSupportedMode (rateIndex);
+}
+WifiMode 
+OnoeWifiRemoteStation::DoGetRtsMode (void)
+{
+  UpdateMode ();
+  // XXX: can we implement something smarter ?
+  return GetSupportedMode (0);
+}
+
+} // namespace ns3
diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/onoe-wifi-manager.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/wifi/onoe-wifi-manager.h	Mon Mar 03 04:03:39 2008 +0100
@@ -0,0 +1,89 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2003,2007 INRIA
+ *
+ * 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: Mathieu Lacage <mathieu.lacage@sophia.inria.fr>
+ */
+#ifndef ONOE_WIFI_MANAGER_H
+#define ONOE_WIFI_MANAGER_H
+
+#include "wifi-remote-station-manager.h"
+#include "ns3/nstime.h"
+
+namespace ns3 {
+
+class OnoeWifiManager : public WifiRemoteStationManager
+{
+public:
+  static TypeId GetTypeId (void);
+
+  OnoeWifiManager ();
+
+private:
+  friend class OnoeWifiRemoteStation;
+  virtual WifiRemoteStation *CreateStation (void);
+
+  Time m_updatePeriod;
+  uint32_t m_addCreditThreshold;
+  uint32_t m_raiseThreshold;
+};
+
+/**
+ * \brief an implementation of rate control algorithm developed 
+ *        by Atsushi Onoe
+ *
+ * This algorithm is well known because it has been used as the default
+ * rate control algorithm for the madwifi driver. I am not aware of
+ * any publication or reference about this algorithm beyond the madwifi
+ * source code.
+ */
+class OnoeWifiRemoteStation : public WifiRemoteStation
+{
+public:
+  OnoeWifiRemoteStation (Ptr<OnoeWifiManager> stations);
+
+  virtual ~OnoeWifiRemoteStation ();
+
+  virtual void ReportRxOk (double rxSnr, WifiMode txMode);
+  virtual void ReportRtsFailed (void);
+  virtual void ReportDataFailed (void);
+  virtual void ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr);
+  virtual void ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr);
+  virtual void ReportFinalRtsFailed (void);
+  virtual void ReportFinalDataFailed (void);
+
+private:
+  virtual Ptr<WifiRemoteStationManager> GetManager (void) const;
+  virtual WifiMode DoGetDataMode (uint32_t size);
+  virtual WifiMode DoGetRtsMode (void);
+
+  void UpdateRetry (void);
+  void UpdateMode (void);
+
+  Ptr<OnoeWifiManager> m_stations;
+  Time m_nextModeUpdate;
+  uint32_t m_shortRetry;
+  uint32_t m_longRetry;
+  uint32_t m_tx_ok;
+  uint32_t m_tx_err;
+  uint32_t m_tx_retr;
+  uint32_t m_tx_upper;
+  uint32_t m_txrate;
+};
+
+} // namespace ns3
+
+#endif /* ONOE_WIFI_MANAGER_H */
diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/rraa-wifi-manager.cc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/wifi/rraa-wifi-manager.cc	Mon Mar 03 04:03:39 2008 +0100
@@ -0,0 +1,407 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2004,2005,2006 INRIA
+ *
+ * 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: Federico Maguolo <maguolof@dei.unipd.it>
+ */
+
+#include "rraa-wifi-manager.h"
+#include "ns3/assert.h"
+#include "ns3/log.h"
+#include "ns3/boolean.h"
+#include "ns3/double.h"
+#include "ns3/uinteger.h"
+#include "ns3/simulator.h"
+
+NS_LOG_COMPONENT_DEFINE ("RraaWifiManager");
+
+namespace ns3 {
+  
+RraaWifiRemoteStation::RraaWifiRemoteStation (Ptr<RraaWifiManager> stations)
+  : m_stations (stations)
+{
+  m_initialized = false;
+  m_rtsWnd = 0;
+  m_rtsCounter = 0;
+  m_rtsOn = false;
+  m_lastFrameFail = false;
+}
+
+RraaWifiRemoteStation::~RraaWifiRemoteStation ()
+{}
+
+void
+RraaWifiRemoteStation::ResetCountersBasic (void)
+{
+  if (!m_initialized) {
+    m_rate = GetMaxRate ();
+    m_initialized = true;
+  }
+  m_failed = 0;
+  m_counter = GetThresholds (m_rate).ewnd;
+  m_lastReset = Simulator::Now ();
+}
+
+Ptr<WifiRemoteStationManager>
+RraaWifiRemoteStation::GetManager (void) const
+{
+  return m_stations;
+}
+
+uint32_t
+RraaWifiRemoteStation::GetMaxRate (void)
+{
+  return GetNSupportedModes () - 1;
+}
+uint32_t
+RraaWifiRemoteStation::GetMinRate (void)
+{
+  return 0;
+}
+
+ThresholdsItem
+RraaWifiRemoteStation::GetThresholds (uint32_t rate) 
+{
+  WifiMode mode = GetSupportedMode (rate);
+  return m_stations->GetThresholds (mode);
+}
+
+
+void 
+RraaWifiRemoteStation::ReportRtsFailed (void)
+{}
+
+void 
+RraaWifiRemoteStation::ReportDataFailed (void)
+{
+  m_lastFrameFail = true;
+  CheckTimeout ();
+  m_counter--;
+  m_failed++;
+  RunBasicAlgorithm ();
+}
+void 
+RraaWifiRemoteStation::ReportRxOk (double rxSnr, WifiMode txMode)
+{}
+void 
+RraaWifiRemoteStation::ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr)
+{
+  NS_LOG_DEBUG ("self="<<this<<" rts ok");
+}
+void 
+RraaWifiRemoteStation::ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr)
+{
+  m_lastFrameFail = false;
+  CheckTimeout ();
+  m_counter--;
+  RunBasicAlgorithm ();
+}
+void 
+RraaWifiRemoteStation::ReportFinalRtsFailed (void)
+{}
+void 
+RraaWifiRemoteStation::ReportFinalDataFailed (void)
+{}
+
+WifiMode
+RraaWifiRemoteStation::DoGetDataMode (uint32_t size)
+{
+  if (!m_initialized)
+    ResetCountersBasic ();
+  return GetSupportedMode (m_rate);
+}
+WifiMode
+RraaWifiRemoteStation::DoGetRtsMode (void)
+{
+  return GetSupportedMode (0);
+}
+
+bool
+RraaWifiRemoteStation::NeedRts (Ptr<const Packet> packet)
+{
+  if (m_stations->OnlyBasic ())
+    return WifiRemoteStation::NeedRts (packet);
+  ARts ();
+  return m_rtsOn;
+}
+
+void
+RraaWifiRemoteStation::CheckTimeout (void)
+{
+  Time d = Simulator::Now () - m_lastReset;
+  if (m_counter == 0 || d > m_stations->GetTimeout ()) {
+    ResetCountersBasic ();
+  }
+}
+
+void
+RraaWifiRemoteStation::RunBasicAlgorithm (void)
+{
+  ThresholdsItem thresholds = GetThresholds (m_rate);
+  double ploss = (double) m_failed / (double) thresholds.ewnd;
+  if (m_counter == 0 || ploss > thresholds.pmtl) {
+    if (m_rate > GetMinRate () && ploss > thresholds.pmtl) {
+      m_rate--;
+    }
+    else if (m_rate < GetMaxRate () && ploss < thresholds.pori) {
+      m_rate++;
+    }
+    ResetCountersBasic ();
+  }
+}
+
+void
+RraaWifiRemoteStation::ARts (void)
+{
+  if (!m_rtsOn && m_lastFrameFail) {
+    m_rtsWnd++;
+    m_rtsCounter = m_rtsWnd;
+  }
+  else if ((m_rtsOn && m_lastFrameFail) || 
+           (!m_rtsOn && !m_lastFrameFail)) {
+    m_rtsWnd = m_rtsWnd / 2;
+    m_rtsCounter = m_rtsWnd;
+  }
+  if (m_rtsCounter > 0) {
+    m_rtsOn = true;
+    m_rtsCounter--;
+  }
+  else {
+    m_rtsOn = false;
+  }
+}
+
+
+TypeId 
+RraaWifiManager::GetTypeId (void)
+{
+  static TypeId tid = TypeId ("RraaWifiManager")
+    .SetParent<WifiRemoteStationManager> ()
+    .AddConstructor<RraaWifiManager> ()
+    .AddAttribute ("Basic",
+                   "If true the RRAA-BASIC algorithm will be used, otherwise the RRAA wil be used",
+                   Boolean (false),
+                   MakeBooleanAccessor (&RraaWifiManager::m_basic),
+                   MakeBooleanChecker ())
+    .AddAttribute ("Timeout",
+                   "Timeout for the RRAA BASIC loss estimaton block (s)",
+                   Seconds (0.05),
+                   MakeTimeAccessor (&RraaWifiManager::m_timeout),
+                   MakeTimeChecker ())
+    .AddAttribute ("ewndFor54mbps",
+                   "ewnd parameter for 54 Mbs data mode",
+                   Uinteger (40),
+                   MakeUintegerAccessor (&RraaWifiManager::m_ewndfor54),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("ewndFor48mbps",
+                   "ewnd parameter for 48 Mbs data mode",
+                   Uinteger (40),
+                   MakeUintegerAccessor (&RraaWifiManager::m_ewndfor48),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("ewndFor36mbps",
+                   "ewnd parameter for 36 Mbs data mode",
+                   Uinteger (40),
+                   MakeUintegerAccessor (&RraaWifiManager::m_ewndfor36),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("ewndFor24mbps",
+                   "ewnd parameter for 24 Mbs data mode",
+                   Uinteger (40),
+                   MakeUintegerAccessor (&RraaWifiManager::m_ewndfor24),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("ewndFor18mbps",
+                   "ewnd parameter for 18 Mbs data mode",
+                   Uinteger (20),
+                   MakeUintegerAccessor (&RraaWifiManager::m_ewndfor18),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("ewndFor12mbps",
+                   "ewnd parameter for 12 Mbs data mode",
+                   Uinteger (20),
+                   MakeUintegerAccessor (&RraaWifiManager::m_ewndfor12),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("ewndFor9mbps",
+                   "ewnd parameter for 9 Mbs data mode",
+                   Uinteger (10),
+                   MakeUintegerAccessor (&RraaWifiManager::m_ewndfor9),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("ewndFor6mbps",
+                   "ewnd parameter for 6 Mbs data mode",
+                   Uinteger (6),
+                   MakeUintegerAccessor (&RraaWifiManager::m_ewndfor6),
+                   MakeUintegerChecker<uint32_t> ())
+    .AddAttribute ("poriFor48mbps",
+                   "Pori parameter for 48 Mbs data mode",
+                   Double (0.047),
+                   MakeDoubleAccessor (&RraaWifiManager::m_porifor48),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("poriFor36mbps",
+                   "Pori parameter for 36 Mbs data mode",
+                   Double (0.115),
+                   MakeDoubleAccessor (&RraaWifiManager::m_porifor36),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("poriFor24mbps",
+                   "Pori parameter for 24 Mbs data mode",
+                   Double (0.1681),
+                   MakeDoubleAccessor (&RraaWifiManager::m_porifor24),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("poriFor18mbps",
+                   "Pori parameter for 18 Mbs data mode",
+                   Double (0.1325),
+                   MakeDoubleAccessor (&RraaWifiManager::m_porifor18),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("poriFor12mbps",
+                   "Pori parameter for 12 Mbs data mode",
+                   Double (0.1861),
+                   MakeDoubleAccessor (&RraaWifiManager::m_porifor12),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("poriFor9mbps",
+                   "Pori parameter for 9 Mbs data mode",
+                   Double (0.1434),
+                   MakeDoubleAccessor (&RraaWifiManager::m_porifor9),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("poriFor6mbps",
+                   "Pori parameter for 6 Mbs data mode",
+                   Double (0.5),
+                   MakeDoubleAccessor (&RraaWifiManager::m_porifor6),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("pmtlFor54mbps",
+                   "Pmtl parameter for 54 Mbs data mode",
+                   Double (0.094),
+                   MakeDoubleAccessor (&RraaWifiManager::m_pmtlfor54),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("pmtlFor48mbps",
+                   "Pmtl parameter for 48 Mbs data mode",
+                   Double (0.23),
+                   MakeDoubleAccessor (&RraaWifiManager::m_pmtlfor48),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("pmtlFor36mbps",
+                   "Pmtl parameter for 36 Mbs data mode",
+                   Double (0.3363),
+                   MakeDoubleAccessor (&RraaWifiManager::m_pmtlfor36),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("pmtlFor24mbps",
+                   "Pmtl parameter for 24 Mbs data mode",
+                   Double (0.265),
+                   MakeDoubleAccessor (&RraaWifiManager::m_pmtlfor24),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("pmtlFor18mbps",
+                   "Pmtl parameter for 18 Mbs data mode",
+                   Double (0.3722),
+                   MakeDoubleAccessor (&RraaWifiManager::m_pmtlfor18),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("pmtlFor12mbps",
+                   "Pmtl parameter for 12 Mbs data mode",
+                   Double(0.2868),
+                   MakeDoubleAccessor (&RraaWifiManager::m_pmtlfor12),
+                   MakeDoubleChecker<double> ())
+    .AddAttribute ("pmtlFor9mbps",
+                   "Pmtl parameter for 9 Mbs data mode",
+                   Double (0.3932),
+                   MakeDoubleAccessor (&RraaWifiManager::m_pmtlfor9),
+                   MakeDoubleChecker<double> ())
+    ;
+  return tid;
+}
+
+
+RraaWifiManager::RraaWifiManager ()
+{}
+RraaWifiManager::~RraaWifiManager ()
+{}
+
+WifiRemoteStation *
+RraaWifiManager::CreateStation (void)
+{
+  return new RraaWifiRemoteStation (this);
+}
+
+bool
+RraaWifiManager::OnlyBasic (void)
+{
+  return m_basic;
+}
+
+Time
+RraaWifiManager::GetTimeout (void) const
+{
+  return m_timeout;
+}
+
+ThresholdsItem
+RraaWifiManager::GetThresholds (WifiMode mode) const
+{
+  switch (mode.GetDataRate () / 1000000) {
+  case 54: {
+    ThresholdsItem mode54 = {54000000, 
+                             0.0, 
+                             m_pmtlfor54, 
+                             m_ewndfor54};
+    return mode54;
+  } break;
+  case 48: {
+    ThresholdsItem mode48 = {48000000, 
+                             m_porifor48, 
+                             m_pmtlfor48, 
+                             m_ewndfor48};
+    return mode48;
+  } break;
+  case 36: {
+    ThresholdsItem mode36 = {36000000, 
+                             m_porifor36, 
+                             m_pmtlfor36, 
+                             m_ewndfor36};
+    return mode36;
+  } break;
+  case 24: {
+    ThresholdsItem mode24 = {24000000, 
+                             m_porifor24, 
+                             m_pmtlfor24, 
+                             m_ewndfor24};
+    return mode24;
+  } break;
+  case 18: {
+    ThresholdsItem mode18 = {18000000, 
+                             m_porifor18, 
+                             m_pmtlfor18, 
+                             m_ewndfor18};
+    return mode18;
+  } break;
+  case 12: {
+    ThresholdsItem mode12 = {12000000, 
+                             m_porifor12, 
+                             m_pmtlfor12, 
+                             m_ewndfor12};
+    return mode12;
+  } break;
+  case 9: {
+    ThresholdsItem mode9 =  {9000000, 
+                             m_porifor9, 
+                             m_pmtlfor9, 
+                             m_ewndfor9};
+    return mode9;
+  } break;
+  case 6: {
+    ThresholdsItem mode6 =  {6000000, 
+                             m_porifor6, 
+                             1.0, 
+                             m_ewndfor6};
+    return mode6;
+  } break;
+  }
+  NS_ASSERT("Thresholds for an unknown mode are asked");
+  return ThresholdsItem ();
+}
+
+} // namespace ns3
diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/rraa-wifi-manager.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/devices/wifi/rraa-wifi-manager.h	Mon Mar 03 04:03:39 2008 +0100
@@ -0,0 +1,127 @@
+/* -*-  Mode: C++; c-file-style: "gnu"; indent-tabs-mode:nil; -*- */
+/*
+ * Copyright (c) 2005,2006 INRIA
+ *
+ * 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: Federico Maguolo <maguolof@dei.unipd.it>
+ */
+#ifndef RRAA_WIFI_MANAGER_H
+#define RRAA_WIFI_MANAGER_H
+
+#include "ns3/nstime.h"
+#include "wifi-remote-station-manager.h"
+
+namespace ns3 {
+
+struct ThresholdsItem {
+  uint32_t datarate;
+  double pori;
+  double pmtl;
+  uint32_t ewnd;
+};
+
+typedef std::vector<ThresholdsItem> Thresholds;
+
+/**
+ * \brief Robust Rate Adaptation Algorithm
+ *
+ * This is an implementation of RRAA as described in
+ * "Robust rate adaptation for 802.11 wireless networks"
+ * by "Starsky H. Y. Wong", "Hao Yang", "Songwu Lu", and,
+ * "Vaduvur Bharghavan" published in Mobicom 06.
+ */
+class RraaWifiManager : public WifiRemoteStationManager 
+{
+public:
+  static TypeId GetTypeId (void);
+
+  RraaWifiManager ();
+  virtual ~RraaWifiManager ();
+  bool OnlyBasic (void);
+  Time GetTimeout (void) const;
+  ThresholdsItem GetThresholds (WifiMode mode) const;
+private:
+  virtual class WifiRemoteStation *CreateStation (void);  
+  bool m_basic;
+  Time m_timeout;
+  uint32_t m_ewndfor54;
+  uint32_t m_ewndfor48;
+  uint32_t m_ewndfor36;
+  uint32_t m_ewndfor24;
+  uint32_t m_ewndfor18;
+  uint32_t m_ewndfor12;
+  uint32_t m_ewndfor9;
+  uint32_t m_ewndfor6;
+  double m_porifor48;
+  double m_porifor36;
+  double m_porifor24;
+  double m_porifor18;
+  double m_porifor12;
+  double m_porifor9;
+  double m_porifor6;
+  double m_pmtlfor54;
+  double m_pmtlfor48;
+  double m_pmtlfor36;
+  double m_pmtlfor24;
+  double m_pmtlfor18;
+  double m_pmtlfor12;
+  double m_pmtlfor9;
+};
+
+
+class RraaWifiRemoteStation : public WifiRemoteStation
+{
+public:
+  RraaWifiRemoteStation (Ptr<RraaWifiManager> stations);
+  virtual ~RraaWifiRemoteStation ();
+
+  virtual void ReportRxOk (double rxSnr, WifiMode txMode);
+  virtual void ReportRtsFailed (void);
+  virtual void ReportDataFailed (void);
+  virtual void ReportRtsOk (double ctsSnr, WifiMode ctsMode, double rtsSnr);
+  virtual void ReportDataOk (double ackSnr, WifiMode ackMode, double dataSnr);
+  virtual void ReportFinalRtsFailed (void);
+  virtual void ReportFinalDataFailed (void);
+  virtual bool NeedRts (Ptr<const Packet> packet);
+
+private:
+  virtual Ptr<WifiRemoteStationManager> GetManager (void) const;
+  virtual WifiMode DoGetDataMode (uint32_t size);
+  virtual WifiMode DoGetRtsMode (void);
+  uint32_t GetMaxRate (void);
+  uint32_t GetMinRate (void);
+  ThresholdsItem GetThresholds (uint32_t rate);
+  void CheckTimeout (void);
+  void RunBasicAlgorithm (void);
+  void ARts (void);
+  void ResetCountersBasic (void);
+
+  uint32_t m_counter;
+  uint32_t m_failed;
+  uint32_t m_rtsWnd;
+  uint32_t m_rtsCounter;
+  Time m_lastReset;
+  bool m_rtsOn;
+  bool m_lastFrameFail;
+  bool m_initialized;
+
+  uint32_t m_rate;
+
+  Ptr<RraaWifiManager> m_stations;
+};
+
+} // namespace ns3
+
+#endif /* RRAA_WIFI_MANAGER_H */
diff -r 401bfe8c0176 -r 2e6e1a6e0d94 src/devices/wifi/wscript
--- a/src/devices/wifi/wscript	Mon Mar 03 02:07:40 2008 +0100
+++ b/src/devices/wifi/wscript	Mon Mar 03 04:03:39 2008 +0100
@@ -32,6 +32,9 @@
         'arf-wifi-manager.cc',
         'aarf-wifi-manager.cc',
         'ideal-wifi-manager.cc',
+        'amrr-wifi-manager.cc',
+        'onoe-wifi-manager.cc',
+        'rraa-wifi-manager.cc',
         'constant-rate-wifi-manager.cc',
         'wifi-helper.cc',
         ]
@@ -51,6 +54,9 @@
         'aarf-wifi-manager.h',
         'constant-rate-wifi-manager.h',
         'ideal-wifi-manager.h',
+        'amrr-wifi-manager.h',
+        'onoe-wifi-manager.h',
+        'rraa-wifi-manager.h',
         'wifi-mac.h',
         'adhoc-wifi-mac.h',
         'nqsta-wifi-mac.h',