diff --git a/src/devices/wifi/dca-txop.cc b/src/devices/wifi/dca-txop.cc
index 7b87bc3a5..9ff952e2e 100644
--- a/src/devices/wifi/dca-txop.cc
+++ b/src/devices/wifi/dca-txop.cc
@@ -19,8 +19,8 @@
  */
 
 #include "ns3/assert.h"
-
 #include "ns3/packet.h"
+#include "ns3/log.h"
 
 #include "dca-txop.h"
 #include "dcf.h"
@@ -30,19 +30,9 @@
 #include "mac-tx-middle.h"
 #include "wifi-phy.h"
 
+NS_LOG_COMPONENT_DEFINE ("DcaTxop");
 
 
-#define noDCA_TXOP_TRACE 1
-
-#ifdef DCA_TXOP_TRACE
-#include "ns3/simulator.h"
-#include <iostream>
-# define TRACE(x) \
-  std::cout <<"DCA TXOP now="<<Simulator::NowUs ()<<"us "<<x<<std::endl;
-#else /* DCA_TXOP_TRACE */
-# define TRACE(x)
-#endif /* DCA_TXOP_TRACE */
-
 namespace ns3 {
 
 class DcaTxop::NavListener : public ns3::MacLowNavListener {
@@ -372,12 +362,12 @@ DcaTxop::AccessNeeded (void)
   if (!m_queue->IsEmpty () ||
       m_hasCurrent) 
     {
-      TRACE ("access needed here");
+      NS_LOG_DEBUG ("access needed here");
       return true;
     } 
   else 
     {
-      TRACE ("no access needed here");
+      NS_LOG_DEBUG ("no access needed here");
       return false;
     }
 }
@@ -389,7 +379,7 @@ DcaTxop::AccessGrantedNow (void)
     {
       if (m_queue->IsEmpty ()) 
         {
-          TRACE ("queue empty");
+          NS_LOG_DEBUG ("queue empty");
           return;
         }
       bool found;
@@ -404,7 +394,7 @@ DcaTxop::AccessGrantedNow (void)
       m_ssrc = 0;
       m_slrc = 0;
       m_fragmentNumber = 0;
-      TRACE ("dequeued size="<<m_currentPacket.GetSize ()<<
+      NS_LOG_DEBUG ("dequeued size="<<m_currentPacket.GetSize ()<<
              ", to="<<m_currentHdr.GetAddr1 ()<<
              ", seq="<<m_currentHdr.GetSequenceControl ()); 
     }
@@ -422,7 +412,7 @@ DcaTxop::AccessGrantedNow (void)
       m_hasCurrent = false;
       m_dcf->ResetCw ();
       m_dcf->StartBackoff ();
-      TRACE ("tx broadcast");
+      NS_LOG_DEBUG ("tx broadcast");
     } 
   else 
     {
@@ -435,12 +425,12 @@ DcaTxop::AccessGrantedNow (void)
           Packet fragment = GetFragmentPacket (&hdr);
           if (IsLastFragment ()) 
             {
-              TRACE ("fragmenting last fragment size="<<fragment->GetSize ());
+              NS_LOG_DEBUG ("fragmenting last fragment size="<<fragment.GetSize ());
               params.DisableNextData ();
             } 
           else 
             {
-              TRACE ("fragmenting size="<<fragment->GetSize ());
+              NS_LOG_DEBUG ("fragmenting size="<<fragment.GetSize ());
               params.EnableNextData (GetNextFragmentSize ());
             }
           Low ()->StartTransmission (fragment, &hdr, params, 
@@ -451,12 +441,12 @@ DcaTxop::AccessGrantedNow (void)
           if (NeedRts ()) 
             {
               params.EnableRts ();
-              TRACE ("tx unicast rts");
+              NS_LOG_DEBUG ("tx unicast rts");
             } 
           else 
             {
               params.DisableRts ();
-              TRACE ("tx unicast");
+              NS_LOG_DEBUG ("tx unicast");
             }
           params.DisableNextData ();
           // We need to make a copy in case we need to 
@@ -476,13 +466,13 @@ DcaTxop::AccessGrantedNow (void)
 void 
 DcaTxop::GotCts (double snr, WifiMode txMode)
 {
-  TRACE ("got cts");
+  NS_LOG_DEBUG ("got cts");
   m_ssrc = 0;
 }
 void 
 DcaTxop::MissedCts (void)
 {
-  TRACE ("missed cts");
+  NS_LOG_DEBUG ("missed cts");
   m_ssrc++;
   m_ctstimeoutTrace (m_ssrc);
   if (m_ssrc > Parameters ()->GetMaxSsrc ()) 
@@ -505,7 +495,7 @@ DcaTxop::GotAck (double snr, WifiMode txMode)
   if (!NeedFragmentation () ||
       IsLastFragment ()) 
     {
-      TRACE ("got ack. tx done.");
+      NS_LOG_DEBUG ("got ack. tx done.");
       if (!m_txOkCallback.IsNull ()) 
         {
           m_txOkCallback (m_currentHdr);
@@ -520,13 +510,13 @@ DcaTxop::GotAck (double snr, WifiMode txMode)
     } 
   else 
     {
-      TRACE ("got ack. tx not done, size="<<m_currentPacket.GetSize ());
+      NS_LOG_DEBUG ("got ack. tx not done, size="<<m_currentPacket.GetSize ());
     }
 }
 void 
 DcaTxop::MissedAck (void)
 {
-  TRACE ("missed ack");
+  NS_LOG_DEBUG ("missed ack");
   m_slrc++;
   m_acktimeoutTrace (m_slrc);
   if (m_slrc > Parameters ()->GetMaxSlrc ()) 
@@ -552,7 +542,7 @@ DcaTxop::MissedAck (void)
 void 
 DcaTxop::StartNext (void)
 {
-  TRACE ("start next packet fragment");
+  NS_LOG_DEBUG ("start next packet fragment");
   /* this callback is used only for fragments. */
   NextFragment ();
   WifiMacHeader hdr;
diff --git a/src/devices/wifi/mac-low.cc b/src/devices/wifi/mac-low.cc
index f5b06aab4..c7e97a81c 100644
--- a/src/devices/wifi/mac-low.cc
+++ b/src/devices/wifi/mac-low.cc
@@ -19,10 +19,10 @@
  */
 
 #include "ns3/assert.h"
-
 #include "ns3/packet.h"
 #include "ns3/simulator.h"
 #include "ns3/tag.h"
+#include "ns3/log.h"
 
 #include "mac-low.h"
 #include "wifi-phy.h"
@@ -31,15 +31,7 @@
 #include "mac-stations.h"
 #include "mac-parameters.h"
 
-#define noMAC_LOW_TRACE 1
-
-#ifdef MAC_LOW_TRACE
-#  include <iostream>
-#  define TRACE(x) \
-  std::cout << "MAC LOW " << x << std::endl;
-#else /* MAC_LOW_TRACE */
-# define TRACE(x)
-#endif /* MAC_LOW_TRACE */
+NS_LOG_COMPONENT_DEFINE ("MacLow");
 
 namespace ns3 {
 
@@ -367,7 +359,7 @@ MacLow::StartTransmission (Packet packet,
 
   //NS_ASSERT (m_phy->IsStateIdle ());
 
-  TRACE ("startTx size="<< GetCurrentSize () << ", to=" << m_currentHdr.GetAddr1());
+  NS_LOG_DEBUG ("startTx size="<< GetCurrentSize () << ", to=" << m_currentHdr.GetAddr1());
 
   if (m_txParams.MustSendRts ()) 
     {
@@ -385,7 +377,7 @@ MacLow::StartTransmission (Packet packet,
 void
 MacLow::ReceiveError (Packet packet, double rxSnr)
 {
-  TRACE ("rx failed ");
+  NS_LOG_DEBUG ("rx failed ");
   m_dropError (packet);
   if (m_txParams.MustWaitFastAck ()) 
     {
@@ -408,7 +400,7 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
   packet.RemoveHeader (hdr);
   
   bool isPrevNavZero = IsNavZero (Simulator::Now ());
-  TRACE ("duration/id=" << hdr.GetDuration ());
+  NS_LOG_DEBUG ("duration/id=" << hdr.GetDuration ());
   NotifyNav (Simulator::Now (), &hdr);
   if (hdr.IsRts ()) 
     {
@@ -416,7 +408,7 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
       if (isPrevNavZero &&
           hdr.GetAddr1 () == m_device->GetSelfAddress ()) 
         {
-          TRACE ("rx RTS from=" << hdr.GetAddr2 () << ", schedule CTS");
+          NS_LOG_DEBUG ("rx RTS from=" << hdr.GetAddr2 () << ", schedule CTS");
           NS_ASSERT (m_sendCtsEvent.IsExpired ());
           MacStation *station = m_stations->Lookup (hdr.GetAddr2 ());
           station->ReportRxOk (rxSnr, txMode);
@@ -431,7 +423,7 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
         } 
       else 
         {
-          TRACE ("rx RTS from=" << hdr.GetAddr2 () << ", cannot schedule CTS");
+          NS_LOG_DEBUG ("rx RTS from=" << hdr.GetAddr2 () << ", cannot schedule CTS");
         }
     } 
   else if (hdr.IsCts () &&
@@ -439,7 +431,7 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
            m_ctsTimeoutEvent.IsRunning () &&
            m_hasCurrent) 
     {
-      TRACE ("receive cts from="<<m_currentHdr.GetAddr1 ());
+      NS_LOG_DEBUG ("receive cts from="<<m_currentHdr.GetAddr1 ());
       SnrTag tag;
       packet.PeekTag (tag);
       MacStation *station = GetStation (m_currentHdr.GetAddr1 ());
@@ -462,7 +454,7 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
             m_superFastAckTimeoutEvent.IsRunning ()) &&
            m_txParams.MustWaitAck ()) 
     {
-      TRACE ("receive ack from="<<m_currentHdr.GetAddr1 ());
+      NS_LOG_DEBUG ("receive ack from="<<m_currentHdr.GetAddr1 ());
       SnrTag tag;
       packet.PeekTag (tag);
       MacStation *station = GetStation (m_currentHdr.GetAddr1 ());
@@ -493,7 +485,7 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
     } 
   else if (hdr.IsCtl ()) 
     {
-      TRACE ("rx drop " << hdr.GetTypeString ());
+      NS_LOG_DEBUG ("rx drop " << hdr.GetTypeString ());
     } 
   else if (hdr.GetAddr1 () == m_device->GetSelfAddress ()) 
     {
@@ -502,11 +494,11 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
       
       if (hdr.IsQosData () && hdr.IsQosNoAck ()) 
         {
-          TRACE ("rx unicast/noAck from="<<hdr.GetAddr2 ());
+          NS_LOG_DEBUG ("rx unicast/noAck from="<<hdr.GetAddr2 ());
         } 
       else if (hdr.IsData () || hdr.IsMgt ()) 
         {
-          TRACE ("rx unicast/sendAck from=" << hdr.GetAddr2 ());
+          NS_LOG_DEBUG ("rx unicast/sendAck from=" << hdr.GetAddr2 ());
           NS_ASSERT (m_sendAckEvent.IsExpired ());
           m_sendAckEvent = Simulator::Schedule (GetSifs (),
                                                 &MacLow::SendAckAfterData, this,
@@ -521,7 +513,7 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
     {
       if (hdr.IsData () || hdr.IsMgt ()) 
         {
-          TRACE ("rx broadcast from=" << hdr.GetAddr2 ());
+          NS_LOG_DEBUG ("rx broadcast from=" << hdr.GetAddr2 ());
           goto rxPacket;
         } 
       else 
@@ -531,7 +523,7 @@ MacLow::ReceiveOk (Packet packet, double rxSnr, WifiMode txMode, WifiPreamble pr
     } 
   else 
     {
-      //TRACE_VERBOSE ("rx not-for-me from %d", GetSource (packet));
+      //NS_LOG_DEBUG_VERBOSE ("rx not-for-me from %d", GetSource (packet));
     }
   return;
  rxPacket:
@@ -738,7 +730,7 @@ MacLow::FastAckTimeout (void)
   station->ReportDataFailed ();
   if (m_phy->IsStateIdle ()) 
     {
-      TRACE ("fast Ack idle missed");
+      NS_LOG_DEBUG ("fast Ack idle missed");
       m_listener->MissedAck ();
     }
   m_listener = 0;
@@ -750,12 +742,12 @@ MacLow::SuperFastAckTimeout ()
   station->ReportDataFailed ();
   if (m_phy->IsStateIdle ()) 
     {
-      TRACE ("super fast Ack failed");
+      NS_LOG_DEBUG ("super fast Ack failed");
       m_listener->MissedAck ();
     } 
   else 
     {
-      TRACE ("super fast Ack ok");
+      NS_LOG_DEBUG ("super fast Ack ok");
       m_listener->GotAck (0.0, WifiMode ());
     }
   m_listener = 0;
@@ -791,7 +783,7 @@ MacLow::SendRtsForPacket (void)
     }
   rts.SetDurationUs (duration.GetMicroSeconds ());
 
-  TRACE ("tx RTS to="<< rts.GetAddr1 () << ", mode=" << (uint32_t)rtsTxMode);
+  NS_LOG_DEBUG ("tx RTS to="<< rts.GetAddr1 () << ", mode=" << rtsTxMode.GetPhyRate ());
 
   Time txDuration = m_phy->CalculateTxDuration (GetRtsSize (), rtsTxMode, WIFI_PREAMBLE_LONG);
   Time timerDelay = txDuration + GetCtsTimeout ();
@@ -851,7 +843,7 @@ MacLow::SendDataPacket (void)
   StartDataTxTimers ();
 
   WifiMode dataTxMode = GetDataTxMode (m_currentHdr.GetAddr1 (), GetCurrentSize ());
-  TRACE ("tx "<< m_currentHdr.GetTypeString () << 
+  NS_LOG_DEBUG ("tx "<< m_currentHdr.GetTypeString () << 
          ", to=" << m_currentHdr.GetAddr1 () <<
          ", mode=" << dataTxMode.GetPhyRate ());
   Time duration = Seconds (0);
@@ -915,7 +907,7 @@ MacLow::SendCtsAfterRts (Mac48Address source, Time duration, WifiMode txMode, do
   /* send a CTS when you receive a RTS 
    * right after SIFS.
    */
-  TRACE ("tx CTS to=" << source << ", mode=" << (uint32_t)txMode);
+  NS_LOG_DEBUG ("tx CTS to=" << source << ", mode=" << txMode.GetPhyRate ());
   WifiMacHeader cts;
   cts.SetType (WIFI_MAC_CTL_CTS);
   cts.SetDsNotFrom ();
@@ -946,7 +938,7 @@ MacLow::SendDataAfterCts (Mac48Address source, Time duration, WifiMode txMode)
   NS_ASSERT (m_hasCurrent);
   WifiMode dataTxMode = GetDataTxMode (m_currentHdr.GetAddr1 (), GetCurrentSize ());
 
-  TRACE ("tx " << m_currentHdr.GetTypeString () << " to=" << m_currentHdr.GetAddr2 () <<
+  NS_LOG_DEBUG ("tx " << m_currentHdr.GetTypeString () << " to=" << m_currentHdr.GetAddr2 () <<
          ", mode=" << dataTxMode.GetPhyRate () << ", seq=0x"<< m_currentHdr.GetSequenceControl ());
 
   StartDataTxTimers ();
@@ -973,7 +965,7 @@ void
 MacLow::FastAckFailedTimeout (void)
 {
   m_listener->MissedAck ();
-  TRACE ("fast Ack busy but missed");
+  NS_LOG_DEBUG ("fast Ack busy but missed");
 }
 
 void
@@ -982,7 +974,7 @@ MacLow::SendAckAfterData (Mac48Address source, Time duration, WifiMode txMode, d
   /* send an ACK when you receive 
    * a packet after SIFS. 
    */
-  TRACE ("tx ACK to=" << source << ", mode=" << txMode.GetPhyRate ());
+  NS_LOG_DEBUG ("tx ACK to=" << source << ", mode=" << txMode.GetPhyRate ());
   WifiMacHeader ack;
   ack.SetType (WIFI_MAC_CTL_ACK);
   ack.SetDsNotFrom ();
diff --git a/src/devices/wifi/wifi-phy.cc b/src/devices/wifi/wifi-phy.cc
index d64e2d6dd..cfa3194bd 100644
--- a/src/devices/wifi/wifi-phy.cc
+++ b/src/devices/wifi/wifi-phy.cc
@@ -27,38 +27,11 @@
 #include "ns3/simulator.h"
 #include "ns3/packet.h"
 #include "ns3/random-variable.h"
-
 #include "ns3/assert.h"
+#include "ns3/log.h"
 #include <math.h>
 
-
-#define nopePHY80211_DEBUG 1
-#define nopePHY80211_STATE_DEBUG 1
-
-/* All the state transitions are marked by these macros. */
-#ifdef PHY80211_STATE_DEBUG
-#include <iostream>
-#  define STATE_FROM(from) \
-std::cout << "PHY self=" << this << " old=" << StateToString (from);
-#  define STATE_TO(to) \
-std::cout << " new=" << StateToString (to);
-#  define STATE_AT(at) \
-std::cout << " at=" << at << std::endl;
-#else
-#  define STATE_FROM(from)
-#  define STATE_TO(from)
-#  define STATE_AT(at)
-#endif
-
-#ifdef PHY80211_DEBUG
-#include <iostream>
-#  define TRACE(x) \
-  std::cout << "PHY80211 TRACE " << Simulator::Now ().GetSeconds () << " " << x << std::endl;
-#else
-#  define TRACE(x)
-#endif
-
-
+NS_LOG_COMPONENT_DEFINE ("WifiPhy");
 
 namespace ns3 {
 
@@ -265,16 +238,16 @@ WifiPhy::ReceivePacket (Packet const packet,
 
   switch (GetState ()) {
   case WifiPhy::SYNC:
-    TRACE ("drop packet because already in Sync (power="<<
-           rxPowerW<<"W)");
+    NS_LOG_DEBUG ("drop packet because already in Sync (power="<<
+                  rxPowerW<<"W)");
     if (endRx > m_endSync) 
       {
         goto maybeCcaBusy;
       }
     break;
   case WifiPhy::TX:
-    TRACE ("drop packet because already in Tx (power="<<
-           rxPowerW<<"W)");
+    NS_LOG_DEBUG ("drop packet because already in Tx (power="<<
+                  rxPowerW<<"W)");
     if (endRx > m_endTx) 
       {
         goto maybeCcaBusy;
@@ -295,8 +268,8 @@ WifiPhy::ReceivePacket (Packet const packet,
       } 
     else 
       {
-        TRACE ("drop packet because signal power too Small ("<<
-               rxPowerW<<"<"<<m_edThresholdW<<")");
+        NS_LOG_DEBUG ("drop packet because signal power too Small ("<<
+                      rxPowerW<<"<"<<m_edThresholdW<<")");
         goto maybeCcaBusy;
       }
     break;
@@ -1179,9 +1152,9 @@ WifiPhy::EndSync (Packet const packet, Ptr<RxEvent> event)
    * all SNIR changes in the snir vector.
    */
   double per = CalculatePer (event, &ni);
-  TRACE ("mode="<<((uint32_t)event->GetPayloadMode ())<<
-         ", ber="<<(1-GetMode (event->GetPayloadMode ())->GetChunkSuccessRate (snr, 1))<<
-         ", snr="<<snr<<", per="<<per<<", size="<<packet.GetSize ());
+  NS_LOG_DEBUG ("mode="<<(event->GetPayloadMode ().GetPhyRate ())<<
+                ", ber="<<(1-GetChunkSuccessRate (event->GetPayloadMode (), snr, 1))<<
+                ", snr="<<snr<<", per="<<per<<", size="<<packet.GetSize ());
   
   if (m_random.GetValue () > per) 
     {