--- a/src/wifi/helper/yans-wifi-helper.cc	Sun Jun 21 00:23:45 2015 +0200
+++ b/src/wifi/helper/yans-wifi-helper.cc	Mon Jun 22 18:28:40 2015 +0200
@@ -242,7 +242,6 @@
   Ptr<ErrorRateModel> error = m_errorRateModel.Create<ErrorRateModel> ();
   phy->SetErrorRateModel (error);
   phy->SetChannel (m_channel);
-  phy->SetMobility (node);
   phy->SetDevice (device);
   return phy;
 }