--- a/src/devices/wimax/bs-net-device.cc	Tue Jan 26 17:37:31 2010 +0100
+++ b/src/devices/wimax/bs-net-device.cc	Wed Jan 27 15:24:28 2010 +0100
@@ -831,7 +831,7 @@
 {
   Time txTime = Seconds (0);
   std::pair<OfdmDlMapIe*, Ptr<PacketBurst> > pair;
-  WimaxPhy::ModulationType modulationType;
+  WimaxPhy::ModulationType modulationType = WimaxPhy::MODULATION_TYPE_BPSK_12;
   std::list<std::pair<OfdmDlMapIe*, Ptr<PacketBurst> > > *downlinkBursts = m_scheduler->GetDownlinkBursts ();
   Ptr<PacketBurst> burst;
   OfdmDlMapIe *dlMapIe;