--- a/src/wifi/model/amrr-wifi-manager.cc	Wed Sep 02 16:37:05 2015 -0700
+++ b/src/wifi/model/amrr-wifi-manager.cc	Thu Sep 03 22:16:49 2015 +0200
@@ -335,8 +335,13 @@
           rateIndex = station->m_txrate;
         }
     }
-
-  return WifiTxVector (GetSupported (station, rateIndex), GetDefaultTxPowerLevel (), GetLongRetryCount (station), GetShortGuardInterval (station), Min (GetNumberOfReceiveAntennas (station), GetNumberOfTransmitAntennas ()), GetNess (station), GetAggregation (station), GetStbc (station));
+  uint32_t channelWidth = GetChannelWidth (station);
+  if (channelWidth >= 40)
+    {
+      //avoid to use legacy rate adaptation algorithms for IEEE 802.11n/ac
+      channelWidth = 20;
+    }
+  return WifiTxVector (GetSupported (station, rateIndex), GetDefaultTxPowerLevel (), GetLongRetryCount (station), false, 1, 0, channelWidth, GetAggregation (station), false);
 }
 
 WifiTxVector
@@ -344,9 +349,15 @@
 {
   NS_LOG_FUNCTION (this << st);
   AmrrWifiRemoteStation *station = (AmrrWifiRemoteStation *)st;
+  uint32_t channelWidth = GetChannelWidth (station);
+  if (channelWidth >= 40)
+    {
+      //avoid to use legacy rate adaptation algorithms for IEEE 802.11n/ac
+      channelWidth = 20;
+    }
   UpdateMode (station);
   /// \todo can we implement something smarter ?
-  return WifiTxVector (GetSupported (station, 0), GetDefaultTxPowerLevel (), GetLongRetryCount (station), GetShortGuardInterval (station), Min (GetNumberOfReceiveAntennas (station), GetNumberOfTransmitAntennas ()), GetNess (station), GetAggregation (station), GetStbc (station));
+  return WifiTxVector (GetSupported (station, 0), GetDefaultTxPowerLevel (), GetLongRetryCount (station), false, 1, 0, channelWidth, GetAggregation (station), false);
 }
 
 bool