--- a/src/devices/mesh/mesh-wifi-interface-mac.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/mesh/mesh-wifi-interface-mac.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -720,16 +720,6 @@
 {
   m_txErrCallback (hdr);
 }
-void
-MeshWifiInterfaceMac::DoStart ()
-{
-  m_beaconDca->Start ();
-  for (Queues::iterator i = m_queues.begin (); i != m_queues.end (); i ++)
-  {
-    i->second->Start ();
-  }
-  WifiMac::DoStart ();
-}
 
 void 
 MeshWifiInterfaceMac::FinishConfigureStandard (enum WifiPhyStandard standard)

--- a/src/devices/mesh/mesh-wifi-interface-mac.h	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/mesh/mesh-wifi-interface-mac.h	Tue Jan 12 17:17:40 2010 +0100
@@ -179,8 +179,6 @@
   bool GetBeaconGeneration () const;
   /// Real d-tor
   virtual void DoDispose ();
-  ///Initiator at t=0
-  void DoStart ();
 
 private:
   typedef std::map<AccessClass, Ptr<DcaTxop> > Queues;

--- a/src/devices/wifi/adhoc-wifi-mac.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/adhoc-wifi-mac.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -298,11 +298,4 @@
 {
   m_txErrCallback (hdr);
 }
-void
-AdhocWifiMac::DoStart ()
-{
-  m_dca->Start ();
-  WifiMac::DoStart ();
-}
-
 } // namespace ns3

--- a/src/devices/wifi/adhoc-wifi-mac.h	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/adhoc-wifi-mac.h	Tue Jan 12 17:17:40 2010 +0100
@@ -82,7 +82,6 @@
 private:
   // inherited from Object base class.
   virtual void DoDispose (void);
-  void DoStart ();
   /* invoked by the MacLows. */
   void ForwardUp (Ptr<Packet> packet, const WifiMacHeader *hdr);
   AdhocWifiMac (const AdhocWifiMac & ctor_arg);

--- a/src/devices/wifi/dca-txop.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/dca-txop.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -268,13 +268,6 @@
   return m_low;
 }
 
-void
-DcaTxop::DoStart ()
-{
-  m_dcf->ResetCw ();
-  m_dcf->StartBackoffNow (m_rng->GetNext (0, m_dcf->GetCw ()));
-  ns3::Dcf::DoStart ();
-}
 bool
 DcaTxop::NeedRts (Ptr<const Packet> packet)
 {

--- a/src/devices/wifi/dca-txop.h	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/dca-txop.h	Tue Jan 12 17:17:40 2010 +0100
@@ -121,7 +121,7 @@
 
   // Inherited from ns3::Object
   Ptr<MacLow> Low (void);
-  void DoStart ();
+
   /* dcf notifications forwarded here */
   bool NeedsAccess (void) const;
   void NotifyAccessGranted (void);

--- a/src/devices/wifi/edca-txop-n.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/edca-txop-n.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -686,11 +686,5 @@
 {
   m_aggregator = aggr;
 }
-void
-EdcaTxopN::DoStart ()
-{
-  m_dcf->ResetCw ();
-  m_dcf->StartBackoffNow (m_rng->GetNext (0, m_dcf->GetCw ()));
-  ns3::Dcf::DoStart ();
-}
+
 } //namespace ns3

--- a/src/devices/wifi/edca-txop-n.h	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/edca-txop-n.h	Tue Jan 12 17:17:40 2010 +0100
@@ -132,7 +132,6 @@
   void SetMsduAggregator (Ptr<MsduAggregator> aggr);
 
 private:
-  void DoStart ();
   /**
    * This functions are used only to correctly set addresses in a-msdu subframe.
    * If aggregating sta is a STA (in an infrastructured network):

--- a/src/devices/wifi/nqap-wifi-mac.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/nqap-wifi-mac.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -606,8 +606,6 @@
     {
       m_beaconEvent = Simulator::ScheduleNow (&NqapWifiMac::SendOneBeacon, this);
     }
-  m_dca->Start ();
-  m_beaconDca->Start ();
   WifiMac::DoStart ();
 }
 

--- a/src/devices/wifi/nqsta-wifi-mac.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/nqsta-wifi-mac.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -686,10 +686,5 @@
       break;
     }
 }
-void
-NqstaWifiMac::DoStart ()
-{
-  m_dca->Start ();
-  WifiMac::DoStart ();
-}
+
 } // namespace ns3

--- a/src/devices/wifi/nqsta-wifi-mac.h	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/nqsta-wifi-mac.h	Tue Jan 12 17:17:40 2010 +0100
@@ -119,7 +119,6 @@
     BEACON_MISSED,
     REFUSED
   };
-  void DoStart ();
   void SetBssid (Mac48Address bssid);
   void SetActiveProbing (bool enable);
   bool GetActiveProbing (void) const;

--- a/src/devices/wifi/qadhoc-wifi-mac.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/qadhoc-wifi-mac.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -108,6 +108,10 @@
   m_dcfManager = 0;
   m_low = 0;
   m_phy = 0;
+  m_voEdca = 0;
+  m_viEdca = 0;
+  m_beEdca = 0;
+  m_bkEdca = 0;
   m_stationManager = 0;
   for (Queues::iterator i = m_queues.begin (); i != m_queues.end (); ++i)
     {
@@ -441,14 +445,5 @@
       break;
     }
 }
-void
-QadhocWifiMac::DoStart ()
-{
-  for (Queues::iterator i = m_queues.begin (); i != m_queues.end (); ++i)
-    {
-      i->second->Start ();
-    }
-  WifiMac::DoStart ();
-}
 
 } //namespace ns3

--- a/src/devices/wifi/qadhoc-wifi-mac.h	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/qadhoc-wifi-mac.h	Tue Jan 12 17:17:40 2010 +0100
@@ -78,7 +78,6 @@
 private:
   Callback<void, Ptr<Packet>, Mac48Address, Mac48Address> m_forwardUp;
   virtual void DoDispose (void);
-  void DoStart ();
   void Receive (Ptr<Packet> packet, const WifiMacHeader *hdr);
   void ForwardUp (Ptr<Packet> packet, Mac48Address from, Mac48Address to);
   QadhocWifiMac &operator = (const QadhocWifiMac &);
@@ -102,6 +101,10 @@
   Ptr<EdcaTxopN> GetBKQueue (void) const;
 
   Queues m_queues;
+  Ptr<EdcaTxopN> m_voEdca;
+  Ptr<EdcaTxopN> m_viEdca;
+  Ptr<EdcaTxopN> m_beEdca;
+  Ptr<EdcaTxopN> m_bkEdca;
   Ptr<MacLow> m_low;
   Ptr<WifiPhy> m_phy;
   Ptr<WifiRemoteStationManager> m_stationManager;

--- a/src/devices/wifi/qap-wifi-mac.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/qap-wifi-mac.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -791,11 +791,6 @@
 void
 QapWifiMac::DoStart (void)
 {
-  m_beaconDca->Start ();
-  for (Queues::iterator i = m_queues.begin (); i != m_queues.end (); ++i)
-    {
-      i->second->Start ();
-    }
   m_beaconEvent.Cancel ();
   if (m_enableBeaconGeneration)
     {

--- a/src/devices/wifi/qsta-wifi-mac.cc	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/qsta-wifi-mac.cc	Tue Jan 12 17:17:40 2010 +0100
@@ -775,13 +775,5 @@
     }
 }
 
-void
-QstaWifiMac::DoStart ()
-{
-  for (Queues::iterator i = m_queues.begin (); i != m_queues.end (); ++i)
-    {
-      i->second->Start ();
-    }
-  WifiMac::DoStart ();
-}
+
 }  //namespace ns3

--- a/src/devices/wifi/qsta-wifi-mac.h	Tue Jan 12 17:15:23 2010 +0100
+++ b/src/devices/wifi/qsta-wifi-mac.h	Tue Jan 12 17:17:40 2010 +0100
@@ -87,7 +87,6 @@
   void StartActiveAssociation (void);
 
 private:
-  void DoStart ();
   void SetBssid (Mac48Address bssid);
   Mac48Address GetBroadcastBssid (void);
   void Receive (Ptr<Packet> p, const WifiMacHeader *hdr);