--- a/src/wifi/helper/ht-wifi-mac-helper.h	Fri Sep 04 22:18:05 2015 +0200
+++ b/src/wifi/helper/ht-wifi-mac-helper.h	Sat Sep 05 11:37:49 2015 +0200
@@ -21,6 +21,7 @@
 #ifndef HT_WIFI_MAC_HELPER_H
 #define HT_WIFI_MAC_HELPER_H
 
+#include "ns3/string.h"
 #include "wifi-helper.h"
 #include "ns3/qos-utils.h"
 #include "qos-wifi-mac-helper.h"
@@ -53,6 +54,10 @@
    */
   static HtWifiMacHelper Default (void);
 
+  /**
+   * Converts a HT MCS value into a DataRate value
+   */
+  static StringValue DataRateForMcs (int mcs);
 };
 
 } //namespace ns3