From 737e283988f5b9fdc8ea8d131f33dd975e412e71 Mon Sep 17 00:00:00 2001
From: Stefano Avallone <stavallo@unina.it>
Date: Thu, 21 May 2020 12:59:23 +0200
Subject: [PATCH] wifi: Remove high latency TX vector tags

---
 CHANGES.html                                  |   1 +
 src/mesh/model/dot11s/airtime-metric.cc       |   2 +-
 src/wifi/model/aarf-wifi-manager.cc           |   6 -
 src/wifi/model/aarf-wifi-manager.h            |   1 -
 src/wifi/model/aarfcd-wifi-manager.cc         |   6 -
 src/wifi/model/aarfcd-wifi-manager.h          |   1 -
 src/wifi/model/amrr-wifi-manager.cc           |   6 -
 src/wifi/model/amrr-wifi-manager.h            |   1 -
 src/wifi/model/aparf-wifi-manager.cc          |   6 -
 src/wifi/model/aparf-wifi-manager.h           |   1 -
 src/wifi/model/arf-wifi-manager.cc            |   6 -
 src/wifi/model/arf-wifi-manager.h             |   1 -
 src/wifi/model/cara-wifi-manager.cc           |   6 -
 src/wifi/model/cara-wifi-manager.h            |   1 -
 src/wifi/model/constant-rate-wifi-manager.cc  |   6 -
 src/wifi/model/constant-rate-wifi-manager.h   |   1 -
 src/wifi/model/ideal-wifi-manager.cc          |   6 -
 src/wifi/model/ideal-wifi-manager.h           |   1 -
 src/wifi/model/mac-low.cc                     |   6 +-
 src/wifi/model/minstrel-ht-wifi-manager.cc    |   6 -
 src/wifi/model/minstrel-ht-wifi-manager.h     |   1 -
 src/wifi/model/minstrel-wifi-manager.cc       |   6 -
 src/wifi/model/minstrel-wifi-manager.h        |   1 -
 src/wifi/model/onoe-wifi-manager.cc           |  21 +-
 src/wifi/model/onoe-wifi-manager.h            |   1 -
 src/wifi/model/parf-wifi-manager.cc           |   6 -
 src/wifi/model/parf-wifi-manager.h            |   1 -
 src/wifi/model/qos-txop.cc                    |   1 -
 src/wifi/model/rraa-wifi-manager.cc           |   6 -
 src/wifi/model/rraa-wifi-manager.h            |   1 -
 src/wifi/model/rrpaa-wifi-manager.cc          |   6 -
 src/wifi/model/rrpaa-wifi-manager.h           |   1 -
 src/wifi/model/tx-vector-tag.cc               | 197 ------------------
 src/wifi/model/tx-vector-tag.h                | 135 ------------
 src/wifi/model/txop.cc                        |   1 -
 src/wifi/model/wifi-remote-station-manager.cc |  85 +-------
 src/wifi/model/wifi-remote-station-manager.h  |  37 +---
 src/wifi/test/power-rate-adaptation-test.cc   |  97 ++++-----
 src/wifi/wscript                              |   2 -
 39 files changed, 78 insertions(+), 599 deletions(-)
 delete mode 100644 src/wifi/model/tx-vector-tag.cc
 delete mode 100644 src/wifi/model/tx-vector-tag.h

diff --git a/CHANGES.html b/CHANGES.html
index 625e8eb7d..f2558d139 100644
--- a/CHANGES.html
+++ b/CHANGES.html
@@ -88,6 +88,7 @@ transmitted.</li>
 <li>The preferred way to declare instances of <b>CommandLine</b> is now through a macro: <b>COMMANDLINE (cmd)</b>.  This enables us to add the <b>CommandLine::Usage()</b> message to the Doxygen for the program.</li>
 <li>New <b>...FailSafe ()</b> variants of the <b> Config </b> is used to connect PDCP TraceSources of eNB and UE in <b>RadioBearerStatsConnector</b> class. It is required for the simulations using RLC SM where PDCP objects are not created for data radio bearers.</li>
 <li><b>T310</b> timer in <b>LteUeRrc</b> class is stopped if the UE receives <b>RRCConnectionReconfiguration</b> including the <b>mobilityControlInfo</b>. This change is introduced following the 3GPP standard TS36331 sec 5.3.5.4.</li>
+<li>The wifi High Latency tags have been removed. They required quite some hacks and were not really needed. The only rate manager (Onoe) that was making use of them has been adjusted to get rid of them.</li>
 </ul>
 <h2>Changes to build system:</h2>
 <ul>
diff --git a/src/mesh/model/dot11s/airtime-metric.cc b/src/mesh/model/dot11s/airtime-metric.cc
index ce9ca17e8..c3399b666 100644
--- a/src/mesh/model/dot11s/airtime-metric.cc
+++ b/src/mesh/model/dot11s/airtime-metric.cc
@@ -80,7 +80,7 @@ AirtimeLinkMetricCalculator::CalculateMetric (Mac48Address peerAddress, Ptr<Mesh
    */
   NS_ASSERT (!peerAddress.IsGroup ());
   //obtain current rate:
-  WifiMode mode = mac->GetWifiRemoteStationManager ()->GetDataTxVector (peerAddress, &m_testHeader, m_testFrame).GetMode();
+  WifiMode mode = mac->GetWifiRemoteStationManager ()->GetDataTxVector (m_testHeader).GetMode();
   //obtain frame error rate:
   double failAvg = mac->GetWifiRemoteStationManager ()->GetInfo (peerAddress).GetFrameErrorRate ();
   if (failAvg == 1)
diff --git a/src/wifi/model/aarf-wifi-manager.cc b/src/wifi/model/aarf-wifi-manager.cc
index 1018ff63b..334cfa5af 100644
--- a/src/wifi/model/aarf-wifi-manager.cc
+++ b/src/wifi/model/aarf-wifi-manager.cc
@@ -292,10 +292,4 @@ AarfWifiManager::DoGetRtsTxVector (WifiRemoteStation *st)
   return rtsTxVector;
 }
 
-bool
-AarfWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/aarf-wifi-manager.h b/src/wifi/model/aarf-wifi-manager.h
index 0e0b9a5fa..3198a3b92 100644
--- a/src/wifi/model/aarf-wifi-manager.h
+++ b/src/wifi/model/aarf-wifi-manager.h
@@ -68,7 +68,6 @@ private:
   void DoReportFinalDataFailed (WifiRemoteStation *station);
   WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
-  bool IsLowLatency (void) const;
 
   uint32_t m_minTimerThreshold;   ///< minimum timer threshold
   uint32_t m_minSuccessThreshold; ///< minimum success threshold
diff --git a/src/wifi/model/aarfcd-wifi-manager.cc b/src/wifi/model/aarfcd-wifi-manager.cc
index ebaa17837..b3b8c8a04 100644
--- a/src/wifi/model/aarfcd-wifi-manager.cc
+++ b/src/wifi/model/aarfcd-wifi-manager.cc
@@ -371,12 +371,6 @@ AarfcdWifiManager::DoNeedRts (WifiRemoteStation *st,
   return station->m_rtsOn;
 }
 
-bool
-AarfcdWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 void
 AarfcdWifiManager::CheckRts (AarfcdWifiRemoteStation *station)
 {
diff --git a/src/wifi/model/aarfcd-wifi-manager.h b/src/wifi/model/aarfcd-wifi-manager.h
index f7db62b6a..b8b9062a6 100644
--- a/src/wifi/model/aarfcd-wifi-manager.h
+++ b/src/wifi/model/aarfcd-wifi-manager.h
@@ -84,7 +84,6 @@ private:
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
   bool DoNeedRts (WifiRemoteStation *station,
                   Ptr<const Packet> packet, bool normally);
-  bool IsLowLatency (void) const;
 
   /**
    * Check if the use of RTS for the given station can be turned off.
diff --git a/src/wifi/model/amrr-wifi-manager.cc b/src/wifi/model/amrr-wifi-manager.cc
index 6fee038ba..aa7aa507c 100644
--- a/src/wifi/model/amrr-wifi-manager.cc
+++ b/src/wifi/model/amrr-wifi-manager.cc
@@ -403,10 +403,4 @@ AmrrWifiManager::DoGetRtsTxVector (WifiRemoteStation *st)
   return rtsTxVector;
 }
 
-bool
-AmrrWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/amrr-wifi-manager.h b/src/wifi/model/amrr-wifi-manager.h
index 6377d3bec..f65aabbe2 100644
--- a/src/wifi/model/amrr-wifi-manager.h
+++ b/src/wifi/model/amrr-wifi-manager.h
@@ -71,7 +71,6 @@ private:
   void DoReportFinalDataFailed (WifiRemoteStation *station);
   WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
-  bool IsLowLatency (void) const;
 
   /**
    * Update the mode used to send to the given station.
diff --git a/src/wifi/model/aparf-wifi-manager.cc b/src/wifi/model/aparf-wifi-manager.cc
index 8cffe237f..2529eeed3 100644
--- a/src/wifi/model/aparf-wifi-manager.cc
+++ b/src/wifi/model/aparf-wifi-manager.cc
@@ -391,10 +391,4 @@ AparfWifiManager::DoGetRtsTxVector (WifiRemoteStation *st)
   return rtsTxVector;
 }
 
-bool
-AparfWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/aparf-wifi-manager.h b/src/wifi/model/aparf-wifi-manager.h
index ff93c02ce..a8dda080c 100644
--- a/src/wifi/model/aparf-wifi-manager.h
+++ b/src/wifi/model/aparf-wifi-manager.h
@@ -84,7 +84,6 @@ private:
   void DoReportFinalDataFailed (WifiRemoteStation *station);
   WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
-  bool IsLowLatency (void) const;
 
   /** Check for initializations.
    *
diff --git a/src/wifi/model/arf-wifi-manager.cc b/src/wifi/model/arf-wifi-manager.cc
index db80bd11d..e7fc36e23 100644
--- a/src/wifi/model/arf-wifi-manager.cc
+++ b/src/wifi/model/arf-wifi-manager.cc
@@ -269,10 +269,4 @@ ArfWifiManager::DoGetRtsTxVector (WifiRemoteStation *st)
   return rtsTxVector;
 }
 
-bool
-ArfWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/arf-wifi-manager.h b/src/wifi/model/arf-wifi-manager.h
index 523df4b0d..15faacf9e 100644
--- a/src/wifi/model/arf-wifi-manager.h
+++ b/src/wifi/model/arf-wifi-manager.h
@@ -74,7 +74,6 @@ private:
   void DoReportFinalDataFailed (WifiRemoteStation *station);
   WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
-  bool IsLowLatency (void) const;
 
   uint32_t m_timerThreshold;   ///< timer threshold
   uint32_t m_successThreshold; ///< success threshold
diff --git a/src/wifi/model/cara-wifi-manager.cc b/src/wifi/model/cara-wifi-manager.cc
index 2770f67a0..2674251fd 100644
--- a/src/wifi/model/cara-wifi-manager.cc
+++ b/src/wifi/model/cara-wifi-manager.cc
@@ -251,10 +251,4 @@ CaraWifiManager::DoNeedRts (WifiRemoteStation *st,
   return normally || station->m_failed >= m_probeThreshold;
 }
 
-bool
-CaraWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/cara-wifi-manager.h b/src/wifi/model/cara-wifi-manager.h
index b58734b89..9d479dcd8 100644
--- a/src/wifi/model/cara-wifi-manager.h
+++ b/src/wifi/model/cara-wifi-manager.h
@@ -72,7 +72,6 @@ private:
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
   bool DoNeedRts (WifiRemoteStation *station,
                   Ptr<const Packet> packet, bool normally);
-  bool IsLowLatency (void) const;
 
   uint32_t m_timerTimeout;     ///< timer threshold
   uint32_t m_successThreshold; ///< success threshold
diff --git a/src/wifi/model/constant-rate-wifi-manager.cc b/src/wifi/model/constant-rate-wifi-manager.cc
index 83931e7c3..f410a8872 100644
--- a/src/wifi/model/constant-rate-wifi-manager.cc
+++ b/src/wifi/model/constant-rate-wifi-manager.cc
@@ -134,10 +134,4 @@ ConstantRateWifiManager::DoGetRtsTxVector (WifiRemoteStation *st)
   return WifiTxVector (m_ctlMode, GetDefaultTxPowerLevel (), GetPreambleForTransmission (m_ctlMode.GetModulationClass (), GetShortPreambleEnabled (), UseGreenfieldForDestination (GetAddress (st))), ConvertGuardIntervalToNanoSeconds (m_ctlMode, GetShortGuardIntervalSupported (st), NanoSeconds (GetGuardInterval (st))), 1, 1, 0, GetChannelWidthForTransmission (m_ctlMode, GetChannelWidth (st)), GetAggregation (st), false);
 }
 
-bool
-ConstantRateWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/constant-rate-wifi-manager.h b/src/wifi/model/constant-rate-wifi-manager.h
index ceacd3738..c61bde666 100644
--- a/src/wifi/model/constant-rate-wifi-manager.h
+++ b/src/wifi/model/constant-rate-wifi-manager.h
@@ -60,7 +60,6 @@ private:
   void DoReportFinalDataFailed (WifiRemoteStation *station);
   WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
-  bool IsLowLatency (void) const;
 
   WifiMode m_dataMode; //!< Wifi mode for unicast Data frames
   WifiMode m_ctlMode;  //!< Wifi mode for RTS frames
diff --git a/src/wifi/model/ideal-wifi-manager.cc b/src/wifi/model/ideal-wifi-manager.cc
index 96e4df3e0..ebec5a8a6 100644
--- a/src/wifi/model/ideal-wifi-manager.cc
+++ b/src/wifi/model/ideal-wifi-manager.cc
@@ -572,10 +572,4 @@ IdealWifiManager::GetLastObservedSnrForChannelWidth (IdealWifiRemoteStation *sta
   return snr;
 }
 
-bool
-IdealWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/ideal-wifi-manager.h b/src/wifi/model/ideal-wifi-manager.h
index f4c951b4c..e5c670144 100644
--- a/src/wifi/model/ideal-wifi-manager.h
+++ b/src/wifi/model/ideal-wifi-manager.h
@@ -77,7 +77,6 @@ private:
   void DoReportFinalDataFailed (WifiRemoteStation *station);
   WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
-  bool IsLowLatency (void) const;
 
   /**
    * Reset the station, invoked if the maximum amount of retries has failed.
diff --git a/src/wifi/model/mac-low.cc b/src/wifi/model/mac-low.cc
index 67c6ef110..7b62815ab 100644
--- a/src/wifi/model/mac-low.cc
+++ b/src/wifi/model/mac-low.cc
@@ -1275,15 +1275,13 @@ MacLow::GetCtsDuration (WifiTxVector ctsTxVector) const
 WifiTxVector
 MacLow::GetRtsTxVector (Ptr<const WifiMacQueueItem> item) const
 {
-  Mac48Address to = item->GetHeader ().GetAddr1 ();
-  return m_stationManager->GetRtsTxVector (to, item->GetPacket ());
+  return m_stationManager->GetRtsTxVector (item->GetHeader ().GetAddr1 ());
 }
 
 WifiTxVector
 MacLow::GetDataTxVector (Ptr<const WifiMacQueueItem> item) const
 {
-  Mac48Address to = item->GetHeader ().GetAddr1 ();
-  return m_stationManager->GetDataTxVector (to, &item->GetHeader (), item->GetPacket ());
+  return m_stationManager->GetDataTxVector (item->GetHeader ());
 }
 
 Time
diff --git a/src/wifi/model/minstrel-ht-wifi-manager.cc b/src/wifi/model/minstrel-ht-wifi-manager.cc
index a08c76125..6741cfc3d 100644
--- a/src/wifi/model/minstrel-ht-wifi-manager.cc
+++ b/src/wifi/model/minstrel-ht-wifi-manager.cc
@@ -1000,12 +1000,6 @@ MinstrelHtWifiManager::CountRetries (MinstrelHtWifiRemoteStation *station)
     }
 }
 
-bool
-MinstrelHtWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 uint16_t
 MinstrelHtWifiManager::GetNextSample (MinstrelHtWifiRemoteStation *station)
 {
diff --git a/src/wifi/model/minstrel-ht-wifi-manager.h b/src/wifi/model/minstrel-ht-wifi-manager.h
index 2434eb6c7..2cfae02db 100644
--- a/src/wifi/model/minstrel-ht-wifi-manager.h
+++ b/src/wifi/model/minstrel-ht-wifi-manager.h
@@ -239,7 +239,6 @@ private:
   void DoReportAmpduTxStatus (WifiRemoteStation *station,
                               uint8_t nSuccessfulMpdus, uint8_t nFailedMpdus,
                               double rxSnr, double dataSnr, uint16_t dataChannelWidth);
-  bool IsLowLatency (void) const;
   bool DoNeedRetransmission (WifiRemoteStation *st, Ptr<const Packet> packet, bool normally);
 
   /**
diff --git a/src/wifi/model/minstrel-wifi-manager.cc b/src/wifi/model/minstrel-wifi-manager.cc
index 7c461a2e4..b9fcce931 100644
--- a/src/wifi/model/minstrel-wifi-manager.cc
+++ b/src/wifi/model/minstrel-wifi-manager.cc
@@ -891,12 +891,6 @@ MinstrelWifiManager::DoNeedRetransmission (WifiRemoteStation *st, Ptr<const Pack
     }
 }
 
-bool
-MinstrelWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 uint16_t
 MinstrelWifiManager::GetNextSample (MinstrelWifiRemoteStation *station)
 {
diff --git a/src/wifi/model/minstrel-wifi-manager.h b/src/wifi/model/minstrel-wifi-manager.h
index 99c8c0ae8..0b607c785 100644
--- a/src/wifi/model/minstrel-wifi-manager.h
+++ b/src/wifi/model/minstrel-wifi-manager.h
@@ -275,7 +275,6 @@ private:
   bool DoNeedRetransmission (WifiRemoteStation *st,
                                  Ptr<const Packet> packet, bool normally);
 
-  bool IsLowLatency (void) const;
 
   /**
    * Estimate the TxTime of a packet with a given mode.
diff --git a/src/wifi/model/onoe-wifi-manager.cc b/src/wifi/model/onoe-wifi-manager.cc
index 3bbaec98b..0fc3cc610 100644
--- a/src/wifi/model/onoe-wifi-manager.cc
+++ b/src/wifi/model/onoe-wifi-manager.cc
@@ -38,6 +38,7 @@ NS_LOG_COMPONENT_DEFINE ("OnoeWifiManager");
 struct OnoeWifiRemoteStation : public WifiRemoteStation
 {
   Time m_nextModeUpdate; ///< next mode update
+  bool m_rateBlocked; ///< whether the rate cannot be changed
   uint32_t m_shortRetry; ///< short retry
   uint32_t m_longRetry; ///< long retry
   uint32_t m_tx_ok; ///< transmit OK
@@ -113,6 +114,7 @@ OnoeWifiManager::DoCreateStation (void) const
   NS_LOG_FUNCTION (this);
   OnoeWifiRemoteStation *station = new OnoeWifiRemoteStation ();
   station->m_nextModeUpdate = Simulator::Now () + m_updatePeriod;
+  station->m_rateBlocked = false;
   station->m_shortRetry = 0;
   station->m_longRetry = 0;
   station->m_tx_ok = 0;
@@ -135,6 +137,7 @@ OnoeWifiManager::DoReportRtsFailed (WifiRemoteStation *st)
   NS_LOG_FUNCTION (this << st);
   OnoeWifiRemoteStation *station = static_cast<OnoeWifiRemoteStation*> (st);
   station->m_shortRetry++;
+  station->m_rateBlocked = true;  // do not change rate for retransmission
 }
 
 void
@@ -143,12 +146,15 @@ OnoeWifiManager::DoReportDataFailed (WifiRemoteStation *st)
   NS_LOG_FUNCTION (this << st);
   OnoeWifiRemoteStation *station = static_cast<OnoeWifiRemoteStation*> (st);
   station->m_longRetry++;
+  station->m_rateBlocked = true;  // do not change rate for retransmission
 }
 
 void
-OnoeWifiManager::DoReportRtsOk (WifiRemoteStation *station, double ctsSnr, WifiMode ctsMode, double rtsSnr)
+OnoeWifiManager::DoReportRtsOk (WifiRemoteStation *st, double ctsSnr, WifiMode ctsMode, double rtsSnr)
 {
-  NS_LOG_FUNCTION (this << station << ctsSnr << ctsMode << rtsSnr);
+  NS_LOG_FUNCTION (this << st << ctsSnr << ctsMode << rtsSnr);
+  OnoeWifiRemoteStation *station = static_cast<OnoeWifiRemoteStation*> (st);
+  station->m_rateBlocked = true;  // do not change rate
 }
 
 void
@@ -160,6 +166,7 @@ OnoeWifiManager::DoReportDataOk (WifiRemoteStation *st,
   OnoeWifiRemoteStation *station = static_cast<OnoeWifiRemoteStation*> (st);
   UpdateRetry (station);
   station->m_tx_ok++;
+  station->m_rateBlocked = false;  // we can change the rate for next packet
 }
 
 void
@@ -169,6 +176,7 @@ OnoeWifiManager::DoReportFinalRtsFailed (WifiRemoteStation *st)
   OnoeWifiRemoteStation *station = static_cast<OnoeWifiRemoteStation*> (st);
   UpdateRetry (station);
   station->m_tx_err++;
+  station->m_rateBlocked = false;  // we can change the rate for next packet
 }
 
 void
@@ -178,6 +186,7 @@ OnoeWifiManager::DoReportFinalDataFailed (WifiRemoteStation *st)
   OnoeWifiRemoteStation *station = static_cast<OnoeWifiRemoteStation*> (st);
   UpdateRetry (station);
   station->m_tx_err++;
+  station->m_rateBlocked = false;  // we can change the rate for next packet
 }
 
 void
@@ -193,7 +202,7 @@ void
 OnoeWifiManager::UpdateMode (OnoeWifiRemoteStation *station)
 {
   NS_LOG_FUNCTION (this << station);
-  if (Simulator::Now () < station->m_nextModeUpdate)
+  if (Simulator::Now () < station->m_nextModeUpdate || station->m_rateBlocked)
     {
       return;
     }
@@ -356,10 +365,4 @@ OnoeWifiManager::DoGetRtsTxVector (WifiRemoteStation *st)
   return rtsTxVector;
 }
 
-bool
-OnoeWifiManager::IsLowLatency (void) const
-{
-  return false;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/onoe-wifi-manager.h b/src/wifi/model/onoe-wifi-manager.h
index 4539fd6a1..4c9a1219d 100644
--- a/src/wifi/model/onoe-wifi-manager.h
+++ b/src/wifi/model/onoe-wifi-manager.h
@@ -72,7 +72,6 @@ private:
   void DoReportFinalDataFailed (WifiRemoteStation *station);
   WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
-  bool IsLowLatency (void) const;
 
   /**
    * Update the number of retry (both short and long).
diff --git a/src/wifi/model/parf-wifi-manager.cc b/src/wifi/model/parf-wifi-manager.cc
index a98f78693..d30a0ff9d 100644
--- a/src/wifi/model/parf-wifi-manager.cc
+++ b/src/wifi/model/parf-wifi-manager.cc
@@ -363,10 +363,4 @@ ParfWifiManager::DoGetRtsTxVector (WifiRemoteStation *st)
   return rtsTxVector;
 }
 
-bool
-ParfWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/parf-wifi-manager.h b/src/wifi/model/parf-wifi-manager.h
index 5e94e7d12..fb398643b 100644
--- a/src/wifi/model/parf-wifi-manager.h
+++ b/src/wifi/model/parf-wifi-manager.h
@@ -72,7 +72,6 @@ private:
   void DoReportFinalDataFailed (WifiRemoteStation *station);
   WifiTxVector DoGetDataTxVector (WifiRemoteStation *station);
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
-  bool IsLowLatency (void) const;
 
   /** Check for initializations.
    *
diff --git a/src/wifi/model/qos-txop.cc b/src/wifi/model/qos-txop.cc
index 542718365..151b4b18c 100644
--- a/src/wifi/model/qos-txop.cc
+++ b/src/wifi/model/qos-txop.cc
@@ -1452,7 +1452,6 @@ QosTxop::PushFront (Ptr<const Packet> packet, const WifiMacHeader &hdr)
 {
   NS_LOG_FUNCTION (this << packet << &hdr);
   WifiMacTrailer fcs;
-  m_stationManager->PrepareForQueue (hdr.GetAddr1 (), packet);
   m_queue->PushFront (Create<WifiMacQueueItem> (packet, hdr));
   StartAccessIfNeeded ();
 }
diff --git a/src/wifi/model/rraa-wifi-manager.cc b/src/wifi/model/rraa-wifi-manager.cc
index f4866d0b7..429d1b428 100644
--- a/src/wifi/model/rraa-wifi-manager.cc
+++ b/src/wifi/model/rraa-wifi-manager.cc
@@ -473,10 +473,4 @@ RraaWifiManager::GetThresholds (RraaWifiRemoteStation *station, uint8_t index) c
   return GetThresholds (station, mode);
 }
 
-bool
-RraaWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } //namespace ns3
diff --git a/src/wifi/model/rraa-wifi-manager.h b/src/wifi/model/rraa-wifi-manager.h
index 2003d5db5..de7ef9f18 100644
--- a/src/wifi/model/rraa-wifi-manager.h
+++ b/src/wifi/model/rraa-wifi-manager.h
@@ -91,7 +91,6 @@ private:
   WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
   bool DoNeedRts (WifiRemoteStation *st,
                   Ptr<const Packet> packet, bool normally);
-  bool IsLowLatency (void) const;
 
   /**
    * Check for initializations.
diff --git a/src/wifi/model/rrpaa-wifi-manager.cc b/src/wifi/model/rrpaa-wifi-manager.cc
index 09dea2bcf..61f116be3 100644
--- a/src/wifi/model/rrpaa-wifi-manager.cc
+++ b/src/wifi/model/rrpaa-wifi-manager.cc
@@ -611,10 +611,4 @@ RrpaaWifiManager::GetThresholds (RrpaaWifiRemoteStation *station, uint8_t index)
   return GetThresholds (station, mode);
 }
 
-bool
-RrpaaWifiManager::IsLowLatency (void) const
-{
-  return true;
-}
-
 } // namespace ns3
diff --git a/src/wifi/model/rrpaa-wifi-manager.h b/src/wifi/model/rrpaa-wifi-manager.h
index 045d105ec..f8ff2e1fd 100644
--- a/src/wifi/model/rrpaa-wifi-manager.h
+++ b/src/wifi/model/rrpaa-wifi-manager.h
@@ -116,7 +116,6 @@ private:
   virtual WifiTxVector DoGetRtsTxVector (WifiRemoteStation *station);
   virtual bool DoNeedRts (WifiRemoteStation *st,
                           Ptr<const Packet> packet, bool normally);
-  virtual bool IsLowLatency (void) const;
 
   /**
    * Check for initializations.
diff --git a/src/wifi/model/tx-vector-tag.cc b/src/wifi/model/tx-vector-tag.cc
deleted file mode 100644
index a1f9dadd6..000000000
--- a/src/wifi/model/tx-vector-tag.cc
+++ /dev/null
@@ -1,197 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2005,2006,2007 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 "tx-vector-tag.h"
-
-/***************************************************************
- *           Packet Mode Tagger
- ***************************************************************/
-
-namespace ns3 {
-
-HighLatencyDataTxVectorTag::HighLatencyDataTxVectorTag ()
-{
-}
-
-HighLatencyDataTxVectorTag::HighLatencyDataTxVectorTag (WifiTxVector dataTxVector)
-  : m_dataTxVector (dataTxVector)
-{
-}
-
-WifiTxVector
-HighLatencyDataTxVectorTag::GetDataTxVector (void) const
-{
-  return m_dataTxVector;
-}
-
-TypeId
-HighLatencyDataTxVectorTag::GetTypeId (void)
-{
-  static TypeId tid = TypeId ("ns3::HighLatencyDataTxVectorTag")
-    .SetParent<Tag> ()
-    .SetGroupName ("Wifi")
-    .AddConstructor<HighLatencyDataTxVectorTag> ()
-  ;
-  return tid;
-}
-
-TypeId
-HighLatencyDataTxVectorTag::GetInstanceTypeId (void) const
-{
-  return GetTypeId ();
-}
-
-uint32_t
-HighLatencyDataTxVectorTag::GetSerializedSize (void) const
-{
-  return sizeof (WifiTxVector);
-}
-
-void
-HighLatencyDataTxVectorTag::Serialize (TagBuffer i) const
-{
-  i.Write ((uint8_t *)&m_dataTxVector, sizeof (WifiTxVector));
-}
-
-void
-HighLatencyDataTxVectorTag::Deserialize (TagBuffer i)
-{
-  i.Read ((uint8_t *)&m_dataTxVector, sizeof (WifiTxVector));
-}
-
-void
-HighLatencyDataTxVectorTag::Print (std::ostream &os) const
-{
-  os << "Data=" << m_dataTxVector;
-}
-
-HighLatencyRtsTxVectorTag::HighLatencyRtsTxVectorTag ()
-{
-}
-
-HighLatencyRtsTxVectorTag::HighLatencyRtsTxVectorTag (WifiTxVector rtsTxVector)
-  : m_rtsTxVector (rtsTxVector)
-{
-}
-
-WifiTxVector
-HighLatencyRtsTxVectorTag::GetRtsTxVector (void) const
-{
-  return m_rtsTxVector;
-}
-
-TypeId
-HighLatencyRtsTxVectorTag::GetTypeId (void)
-{
-  static TypeId tid = TypeId ("ns3::HighLatencyRtsTxVectorTag")
-    .SetParent<Tag> ()
-    .SetGroupName ("Wifi")
-    .AddConstructor<HighLatencyRtsTxVectorTag> ()
-  ;
-  return tid;
-}
-
-TypeId
-HighLatencyRtsTxVectorTag::GetInstanceTypeId (void) const
-{
-  return GetTypeId ();
-}
-
-uint32_t
-HighLatencyRtsTxVectorTag::GetSerializedSize (void) const
-{
-  return sizeof (WifiTxVector);
-}
-
-void
-HighLatencyRtsTxVectorTag::Serialize (TagBuffer i) const
-{
-  i.Write ((uint8_t *)&m_rtsTxVector, sizeof (WifiTxVector));
-}
-
-void
-HighLatencyRtsTxVectorTag::Deserialize (TagBuffer i)
-{
-  i.Read ((uint8_t *)&m_rtsTxVector, sizeof (WifiTxVector));
-}
-
-void
-HighLatencyRtsTxVectorTag::Print (std::ostream &os) const
-{
-  os << "Rts=" << m_rtsTxVector;
-}
-
-HighLatencyCtsToSelfTxVectorTag::HighLatencyCtsToSelfTxVectorTag ()
-{
-}
-
-HighLatencyCtsToSelfTxVectorTag::HighLatencyCtsToSelfTxVectorTag (WifiTxVector ctsToSelfTxVector)
-  : m_ctsToSelfTxVector (ctsToSelfTxVector)
-{
-}
-
-WifiTxVector
-HighLatencyCtsToSelfTxVectorTag::GetCtsToSelfTxVector (void) const
-{
-  return m_ctsToSelfTxVector;
-}
-
-TypeId
-HighLatencyCtsToSelfTxVectorTag::GetTypeId (void)
-{
-  static TypeId tid = TypeId ("ns3::HighLatencyCtsToSelfTxVectorTag")
-    .SetParent<Tag> ()
-    .SetGroupName ("Wifi")
-    .AddConstructor<HighLatencyCtsToSelfTxVectorTag> ()
-  ;
-  return tid;
-}
-
-TypeId
-HighLatencyCtsToSelfTxVectorTag::GetInstanceTypeId (void) const
-{
-  return GetTypeId ();
-}
-
-uint32_t
-HighLatencyCtsToSelfTxVectorTag::GetSerializedSize (void) const
-{
-  return sizeof (WifiTxVector);
-}
-
-void
-HighLatencyCtsToSelfTxVectorTag::Serialize (TagBuffer i) const
-{
-  i.Write ((uint8_t *)&m_ctsToSelfTxVector, sizeof (WifiTxVector));
-}
-
-void
-HighLatencyCtsToSelfTxVectorTag::Deserialize (TagBuffer i)
-{
-  i.Read ((uint8_t *)&m_ctsToSelfTxVector, sizeof (WifiTxVector));
-}
-
-void
-HighLatencyCtsToSelfTxVectorTag::Print (std::ostream &os) const
-{
-  os << "Cts To Self=" << m_ctsToSelfTxVector;
-}
-
-} //namespace ns3
diff --git a/src/wifi/model/tx-vector-tag.h b/src/wifi/model/tx-vector-tag.h
deleted file mode 100644
index a851c8552..000000000
--- a/src/wifi/model/tx-vector-tag.h
+++ /dev/null
@@ -1,135 +0,0 @@
-/* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/*
- * Copyright (c) 2005,2006,2007 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 TX_VECTOR_TAG_H
-#define TX_VECTOR_TAG_H
-
-#include "ns3/tag.h"
-#include "wifi-tx-vector.h"
-
-/***************************************************************
- *           Packet Mode Tagger
- ***************************************************************/
-
-namespace ns3 {
-
-/**
- * HighLatencyDataTxVectorTag class
- */
-class HighLatencyDataTxVectorTag : public Tag
-{
-public:
-  HighLatencyDataTxVectorTag ();
-  /**
-   * Constructor
-   *
-   * \param dataTxVector TXVECTOR for data frames
-   */
-  HighLatencyDataTxVectorTag (WifiTxVector dataTxVector);
-  /**
-   * \returns the transmission mode to use to send this packet
-   */
-  WifiTxVector GetDataTxVector (void) const;
-
-  /**
-   * \brief Get the type ID.
-   * \return the object TypeId
-   */
-  static TypeId GetTypeId (void);
-  virtual TypeId GetInstanceTypeId (void) const;
-  virtual uint32_t GetSerializedSize (void) const;
-  virtual void Serialize (TagBuffer i) const;
-  virtual void Deserialize (TagBuffer i);
-  virtual void Print (std::ostream &os) const;
-
-private:
-  WifiTxVector m_dataTxVector; ///< TXVECTOR for data frames
-};
-
-/**
- * HighLatencyRtsTxVectorTag class
- */
-class HighLatencyRtsTxVectorTag : public Tag
-{
-public:
-  HighLatencyRtsTxVectorTag ();
-  /**
-   * Constructor
-   *
-   * \param rtsTxVector TXVECTOR for RTS frames
-   */
-  HighLatencyRtsTxVectorTag (WifiTxVector rtsTxVector);
-  /**
-   * \returns the transmission mode to use to send the RTS prior to the
-   *          transmission of the data packet itself.
-   */
-  WifiTxVector GetRtsTxVector (void) const;
-
-  /**
-   * \brief Get the type ID.
-   * \return the object TypeId
-   */
-  static TypeId GetTypeId (void);
-  virtual TypeId GetInstanceTypeId (void) const;
-  virtual uint32_t GetSerializedSize (void) const;
-  virtual void Serialize (TagBuffer i) const;
-  virtual void Deserialize (TagBuffer i);
-  virtual void Print (std::ostream &os) const;
-
-private:
-  WifiTxVector m_rtsTxVector; ///< TXVECTOR for data frames
-};
-
-/**
- * HighLatencyCtsToSelfTxVectorTag class
- */
-class HighLatencyCtsToSelfTxVectorTag : public Tag
-{
-public:
-  HighLatencyCtsToSelfTxVectorTag ();
-  /**
-   * Constructor
-   *
-   * \param ctsToSelfTxVector TXVECTOR for CTS-to-self frames
-   */
-  HighLatencyCtsToSelfTxVectorTag (WifiTxVector ctsToSelfTxVector);
-  /**
-   * \returns the transmission mode to use for the CTS-to-self.
-   */
-  WifiTxVector GetCtsToSelfTxVector (void) const;
-
-  /**
-   * \brief Get the type ID.
-   * \return the object TypeId
-   */
-  static TypeId GetTypeId (void);
-  virtual TypeId GetInstanceTypeId (void) const;
-  virtual uint32_t GetSerializedSize (void) const;
-  virtual void Serialize (TagBuffer i) const;
-  virtual void Deserialize (TagBuffer i);
-  virtual void Print (std::ostream &os) const;
-
-private:
-  WifiTxVector m_ctsToSelfTxVector; ///< TXVECTOR for CTS-to-self frames
-};
-
-} //namespace ns3
-
-#endif /* TX_VECTOR_TAG_H */
diff --git a/src/wifi/model/txop.cc b/src/wifi/model/txop.cc
index d5c973874..073723bad 100644
--- a/src/wifi/model/txop.cc
+++ b/src/wifi/model/txop.cc
@@ -319,7 +319,6 @@ Txop::Queue (Ptr<Packet> packet, const WifiMacHeader &hdr)
   // remove the priority tag attached, if any
   SocketPriorityTag priorityTag;
   packet->RemovePacketTag (priorityTag);
-  m_stationManager->PrepareForQueue (hdr.GetAddr1 (), packet);
   if (m_channelAccessManager->NeedBackoffUponAccess (this))
     {
       GenerateBackoff ();
diff --git a/src/wifi/model/wifi-remote-station-manager.cc b/src/wifi/model/wifi-remote-station-manager.cc
index ef9f36f0c..dbcadcb0c 100644
--- a/src/wifi/model/wifi-remote-station-manager.cc
+++ b/src/wifi/model/wifi-remote-station-manager.cc
@@ -33,7 +33,6 @@
 #include "vht-configuration.h"
 #include "he-configuration.h"
 #include "wifi-net-device.h"
-#include "tx-vector-tag.h"
 
 namespace ns3 {
 
@@ -47,16 +46,6 @@ WifiRemoteStationManager::GetTypeId (void)
   static TypeId tid = TypeId ("ns3::WifiRemoteStationManager")
     .SetParent<Object> ()
     .SetGroupName ("Wifi")
-    .AddAttribute ("IsLowLatency",
-                   "If true, we attempt to model a so-called low-latency device: "
-                   "a device where decisions about TX parameters can be made on a per-packet basis and "
-                   "feedback about the transmission of each packet is obtained before sending the next. "
-                   "Otherwise, we model a high-latency device, that is a device where we cannot update "
-                   "our decision about TX parameters after every packet transmission.",
-                   TypeId::ATTR_GET,
-                   BooleanValue (true), //this value is ignored because there is no setter
-                   MakeBooleanAccessor (&WifiRemoteStationManager::IsLowLatency),
-                   MakeBooleanChecker ())
     .AddAttribute ("MaxSsrc",
                    "The maximum number of retransmission attempts for any packet with size <= RtsCtsThreshold. "
                    "This value will not have any effect on some rate control algorithms.",
@@ -513,39 +502,12 @@ WifiRemoteStationManager::RecordDisassociated (Mac48Address address)
   LookupState (address)->m_state = WifiRemoteStationState::DISASSOC;
 }
 
-void
-WifiRemoteStationManager::PrepareForQueue (Mac48Address address, Ptr<const Packet> packet)
-{
-  NS_LOG_FUNCTION (this << address << packet);
-  if (IsLowLatency () || address.IsGroup ())
-    {
-      return;
-    }
-  WifiRemoteStation *station = Lookup (address);
-  WifiTxVector rts = DoGetRtsTxVector (station);
-  WifiTxVector data = DoGetDataTxVector (station);
-  WifiTxVector ctstoself = DoGetCtsToSelfTxVector ();
-  HighLatencyDataTxVectorTag datatag;
-  HighLatencyRtsTxVectorTag rtstag;
-  HighLatencyCtsToSelfTxVectorTag ctstoselftag;
-  //first, make sure that the tag is not here anymore.
-  ConstCast<Packet> (packet)->RemovePacketTag (datatag);
-  ConstCast<Packet> (packet)->RemovePacketTag (rtstag);
-  ConstCast<Packet> (packet)->RemovePacketTag (ctstoselftag);
-  datatag = HighLatencyDataTxVectorTag (data);
-  rtstag = HighLatencyRtsTxVectorTag (rts);
-  ctstoselftag = HighLatencyCtsToSelfTxVectorTag (ctstoself);
-  //and then, add it back
-  packet->AddPacketTag (datatag);
-  packet->AddPacketTag (rtstag);
-  packet->AddPacketTag (ctstoselftag);
-}
-
 WifiTxVector
-WifiRemoteStationManager::GetDataTxVector (Mac48Address address, const WifiMacHeader *header, Ptr<const Packet> packet)
+WifiRemoteStationManager::GetDataTxVector (const WifiMacHeader &header)
 {
-  NS_LOG_FUNCTION (this << address << *header << packet);
-  if (!header->IsMgt () && address.IsGroup ())
+  NS_LOG_FUNCTION (this << header);
+  Mac48Address address = header.GetAddr1 ();
+  if (!header.IsMgt () && address.IsGroup ())
     {
       WifiMode mode = GetNonUnicastMode ();
       WifiTxVector v;
@@ -560,15 +522,8 @@ WifiRemoteStationManager::GetDataTxVector (Mac48Address address, const WifiMacHe
       v.SetStbc (0);
       return v;
     }
-  if (!IsLowLatency ())
-    {
-      HighLatencyDataTxVectorTag datatag;
-      bool found = ConstCast<Packet> (packet)->PeekPacketTag (datatag);
-      NS_ASSERT (found);
-      return datatag.GetDataTxVector ();
-    }
   WifiTxVector txVector;
-  if (header->IsMgt ())
+  if (header.IsMgt ())
     {
       //Use the lowest basic rate for management frames
       WifiMode mgtMode;
@@ -602,22 +557,7 @@ WifiRemoteStationManager::GetDataTxVector (Mac48Address address, const WifiMacHe
 }
 
 WifiTxVector
-WifiRemoteStationManager::GetCtsToSelfTxVector (const WifiMacHeader *header,
-                                                Ptr<const Packet> packet)
-{
-  NS_LOG_FUNCTION (this << *header << packet);
-  if (!IsLowLatency ())
-    {
-      HighLatencyCtsToSelfTxVectorTag ctstoselftag;
-      bool found = ConstCast<Packet> (packet)->PeekPacketTag (ctstoselftag);
-      NS_ASSERT (found);
-      return ctstoselftag.GetCtsToSelfTxVector ();
-    }
-  return DoGetCtsToSelfTxVector ();
-}
-
-WifiTxVector
-WifiRemoteStationManager::DoGetCtsToSelfTxVector (void)
+WifiRemoteStationManager::GetCtsToSelfTxVector (void)
 {
   WifiMode defaultMode = GetDefaultMode ();
   WifiPreamble defaultPreamble;
@@ -651,9 +591,9 @@ WifiRemoteStationManager::DoGetCtsToSelfTxVector (void)
 }
 
 WifiTxVector
-WifiRemoteStationManager::GetRtsTxVector (Mac48Address address, Ptr<const Packet> packet)
+WifiRemoteStationManager::GetRtsTxVector (Mac48Address address)
 {
-  NS_LOG_FUNCTION (this << address << packet);
+  NS_LOG_FUNCTION (this << address);
   if (address.IsGroup ())
     {
         WifiMode mode = GetNonUnicastMode ();
@@ -669,13 +609,6 @@ WifiRemoteStationManager::GetRtsTxVector (Mac48Address address, Ptr<const Packet
         v.SetStbc (0);
         return v;
     }
-  if (!IsLowLatency ())
-    {
-      HighLatencyRtsTxVectorTag rtstag;
-      bool found = ConstCast<Packet> (packet)->PeekPacketTag (rtstag);
-      NS_ASSERT (found);
-      return rtstag.GetRtsTxVector ();
-    }
   return DoGetRtsTxVector (Lookup (address));
 }
 
@@ -811,7 +744,7 @@ WifiRemoteStationManager::NeedRts (const WifiMacHeader *header, Ptr<const Packet
 {
   NS_LOG_FUNCTION (this << *header << packet);
   Mac48Address address = header->GetAddr1 ();
-  WifiTxVector txVector = GetDataTxVector (address, header, packet);
+  WifiTxVector txVector = GetDataTxVector (*header);
   WifiMode mode = txVector.GetMode ();
   if (address.IsGroup ())
     {
diff --git a/src/wifi/model/wifi-remote-station-manager.h b/src/wifi/model/wifi-remote-station-manager.h
index d0c17e9c3..da3501e09 100644
--- a/src/wifi/model/wifi-remote-station-manager.h
+++ b/src/wifi/model/wifi-remote-station-manager.h
@@ -654,42 +654,18 @@ public:
   void RecordDisassociated (Mac48Address address);
 
   /**
-   * \param address remote address
-   * \param packet the packet to queue
-   *
-   * This method is typically invoked just before queuing a packet for transmission.
-   * It is a no-op unless the IsLowLatency attribute of the attached ns3::WifiRemoteStationManager
-   * is set to false, in which case, the TX parameters of the packet are calculated and stored in
-   * the packet as a tag. These TX parameters are later retrieved from GetDadaMode and GetRtsMode.
-   */
-  void PrepareForQueue (Mac48Address address, Ptr<const Packet> packet);
-
-  /**
-   * \param address remote address
    * \param header MAC header
-   * \param packet the packet to send
    *
    * \return the TXVECTOR to use to send this packet
    */
-  WifiTxVector GetDataTxVector (Mac48Address address, const WifiMacHeader *header,
-                                Ptr<const Packet> packet);
+  WifiTxVector GetDataTxVector (const WifiMacHeader &header);
   /**
    * \param address remote address
-   * \param packet the packet to send
    *
    * \return the TXVECTOR to use to send the RTS prior to the
    *         transmission of the data packet itself.
    */
-  WifiTxVector GetRtsTxVector (Mac48Address address, Ptr<const Packet> packet);
-  /**
-   * \param header MAC header
-   * \param packet the packet to send
-   *
-   * \return the transmission mode to use to send the CTS-to-self prior to the
-   *         transmission of the data packet itself.
-   */
-  WifiTxVector GetCtsToSelfTxVector (const WifiMacHeader *header,
-                                     Ptr<const Packet> packet);
+  WifiTxVector GetRtsTxVector (Mac48Address address);
   /**
    * Since CTS-to-self parameters are not dependent on the station,
    * it is implemented in wifi remote station manager
@@ -697,7 +673,7 @@ public:
    * \return the transmission mode to use to send the CTS-to-self prior to the
    *         transmission of the data packet itself.
    */
-  WifiTxVector DoGetCtsToSelfTxVector (void);
+  WifiTxVector GetCtsToSelfTxVector (void);
 
   /**
    * Should be invoked whenever the RtsTimeout associated to a transmission
@@ -1122,13 +1098,6 @@ private:
    */
   virtual bool DoNeedFragmentation (WifiRemoteStation *station,
                                     Ptr<const Packet> packet, bool normally);
-  /**
-   * \return whether this manager is a manager designed to work in low-latency environments.
-   *
-   * Note: In this context, low vs high latency is defined in <i>IEEE 802.11 Rate Adaptation:
-   * A Practical Approach</i>, by M. Lacage, M.H. Manshaei, and T. Turletti.
-   */
-  virtual bool IsLowLatency (void) const = 0;
   /**
    * \return a new station data structure
    */
diff --git a/src/wifi/test/power-rate-adaptation-test.cc b/src/wifi/test/power-rate-adaptation-test.cc
index 52061fbc5..a7a3ee731 100644
--- a/src/wifi/test/power-rate-adaptation-test.cc
+++ b/src/wifi/test/power-rate-adaptation-test.cc
@@ -136,6 +136,7 @@ PowerRateAdaptationTest::TestParf ()
    */
   Mac48Address remoteAddress = Mac48Address::Allocate ();
   WifiMacHeader packetHeader;
+  packetHeader.SetAddr1 (remoteAddress);
   packetHeader.SetType (WIFI_MAC_DATA);
   packetHeader.SetQosTid (0);
   Ptr<Packet> packet = Create<Packet> (10);
@@ -152,7 +153,7 @@ PowerRateAdaptationTest::TestParf ()
   /*
    * Parf initiates with maximal rate and power.
    */
-  WifiTxVector txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  WifiTxVector txVector = manager->GetDataTxVector (packetHeader);
   WifiMode mode = txVector.GetMode ();
   int power = (int) txVector.GetTxPowerLevel ();
 
@@ -170,7 +171,7 @@ PowerRateAdaptationTest::TestParf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -185,7 +186,7 @@ PowerRateAdaptationTest::TestParf ()
    */
   manager->ReportDataFailed (remoteAddress, &packetHeader, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -205,7 +206,7 @@ PowerRateAdaptationTest::TestParf ()
     }
   manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -220,7 +221,7 @@ PowerRateAdaptationTest::TestParf ()
 
   manager->ReportDataFailed (remoteAddress, &packetHeader, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -236,7 +237,7 @@ PowerRateAdaptationTest::TestParf ()
   manager->ReportDataFailed (remoteAddress, &packetHeader, packet->GetSize ());
   manager->ReportDataFailed (remoteAddress, &packetHeader, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -254,7 +255,7 @@ PowerRateAdaptationTest::TestParf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -269,7 +270,7 @@ PowerRateAdaptationTest::TestParf ()
 
   manager->ReportDataFailed (remoteAddress, &packetHeader, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -287,7 +288,7 @@ PowerRateAdaptationTest::TestParf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -305,7 +306,7 @@ PowerRateAdaptationTest::TestParf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -325,7 +326,7 @@ PowerRateAdaptationTest::TestParf ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -356,6 +357,7 @@ PowerRateAdaptationTest::TestAparf ()
    */
   Mac48Address remoteAddress = Mac48Address::Allocate ();
   WifiMacHeader packetHeader;
+  packetHeader.SetAddr1 (remoteAddress);
   packetHeader.SetType (WIFI_MAC_DATA);
   packetHeader.SetQosTid (0);
   Ptr<Packet> packet = Create<Packet> (10);
@@ -372,7 +374,7 @@ PowerRateAdaptationTest::TestAparf ()
   /*
    * Aparf initiates with maximal rate and power.
    */
-  WifiTxVector txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  WifiTxVector txVector = manager->GetDataTxVector (packetHeader);
   WifiMode mode = txVector.GetMode ();
   int power = (int) txVector.GetTxPowerLevel ();
 
@@ -391,7 +393,7 @@ PowerRateAdaptationTest::TestAparf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -406,7 +408,7 @@ PowerRateAdaptationTest::TestAparf ()
    */
   manager->ReportDataFailed (remoteAddress, &packetHeader, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -425,7 +427,7 @@ PowerRateAdaptationTest::TestAparf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -444,7 +446,7 @@ PowerRateAdaptationTest::TestAparf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -462,7 +464,7 @@ PowerRateAdaptationTest::TestAparf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -477,7 +479,7 @@ PowerRateAdaptationTest::TestAparf ()
    */
   manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -495,7 +497,7 @@ PowerRateAdaptationTest::TestAparf ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -511,7 +513,7 @@ PowerRateAdaptationTest::TestAparf ()
    */
   manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -529,7 +531,7 @@ PowerRateAdaptationTest::TestAparf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -549,7 +551,7 @@ PowerRateAdaptationTest::TestAparf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -561,7 +563,7 @@ PowerRateAdaptationTest::TestAparf ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -598,6 +600,7 @@ PowerRateAdaptationTest::TestRrpaa ()
    */
   Mac48Address remoteAddress = Mac48Address::Allocate ();
   WifiMacHeader packetHeader;
+  packetHeader.SetAddr1 (remoteAddress);
   packetHeader.SetType (WIFI_MAC_DATA);
   packetHeader.SetQosTid (0);
   Ptr<Packet> packet = Create<Packet> (10);
@@ -640,7 +643,7 @@ PowerRateAdaptationTest::TestRrpaa ()
   /*
    * RRPAA initiates with minimal rate and maximal power.
    */
-  WifiTxVector txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  WifiTxVector txVector = manager->GetDataTxVector (packetHeader);
   WifiMode mode = txVector.GetMode ();
   int power = (int) txVector.GetTxPowerLevel ();
 
@@ -662,7 +665,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -674,7 +677,7 @@ PowerRateAdaptationTest::TestRrpaa ()
    */
   manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -692,7 +695,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -701,7 +704,7 @@ PowerRateAdaptationTest::TestRrpaa ()
 
   manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -719,7 +722,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -731,7 +734,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -743,7 +746,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -755,7 +758,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -767,7 +770,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -779,7 +782,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -791,7 +794,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -811,7 +814,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -820,7 +823,7 @@ PowerRateAdaptationTest::TestRrpaa ()
 
   manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -839,7 +842,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -857,7 +860,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -875,7 +878,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -893,7 +896,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -909,7 +912,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -929,7 +932,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -941,7 +944,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -953,7 +956,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataFailed (remoteAddress,&packetHeader, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -965,7 +968,7 @@ PowerRateAdaptationTest::TestRrpaa ()
       manager->ReportDataOk (remoteAddress, &packetHeader, 0, ackMode, 0, 20, packet->GetSize ());
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
@@ -991,7 +994,7 @@ PowerRateAdaptationTest::TestRrpaa ()
         }
     }
 
-  txVector = manager->GetDataTxVector (remoteAddress, &packetHeader, packet);
+  txVector = manager->GetDataTxVector (packetHeader);
   mode = txVector.GetMode ();
   power = (int) txVector.GetTxPowerLevel ();
 
diff --git a/src/wifi/wscript b/src/wifi/wscript
index 220ab02d7..7fbef85f3 100644
--- a/src/wifi/wscript
+++ b/src/wifi/wscript
@@ -18,7 +18,6 @@ def build(bld):
         'model/yans-wifi-phy.cc',
         'model/yans-wifi-channel.cc',
         'model/spectrum-wifi-phy.cc',
-        'model/tx-vector-tag.cc',
         'model/wifi-spectrum-phy-interface.cc',
         'model/wifi-spectrum-signal-parameters.cc',
         'model/wifi-phy-header.cc',
@@ -144,7 +143,6 @@ def build(bld):
         'model/wifi-phy-standard.h',
         'model/yans-wifi-phy.h',
         'model/spectrum-wifi-phy.h',
-        'model/tx-vector-tag.h',
         'model/yans-wifi-channel.h',
         'model/wifi-phy.h',
         'model/wifi-spectrum-phy-interface.h',