diff -r b3b5505b8dc4 -r 8dfcbf71cb06 src/wifi/helper/ht-wifi-mac-helper.cc
--- a/src/wifi/helper/ht-wifi-mac-helper.cc	Fri Sep 04 22:18:05 2015 +0200
+++ b/src/wifi/helper/ht-wifi-mac-helper.cc	Sat Sep 05 11:37:49 2015 +0200
@@ -47,4 +47,17 @@
   return helper;
 }
 
+StringValue
+HtWifiMacHelper::DataRateForMcs (int mcs)
+{
+  std::stringstream sstmp;
+  std::string strtmp, dataRate;
+
+  sstmp << mcs;
+  sstmp >> strtmp;
+  dataRate = "HtMcs" + strtmp;
+  
+  return StringValue (dataRate);
+}
+
 } //namespace ns3