Created attachment 2007 [details]
example program

It seems that there is a glitch in the WiMAX burst end check.

In SimpleOfdmWimaxPhy::EndSendFecBlock the block end condition is:
  if (m_nrFecBlocksSent * m_blockSize == m_currentBurstSize * 8 + m_paddingBits)
    {
      // this is the last FEC block of the burst
      NS_ASSERT_MSG (m_nrRemainingBlocksToSend == 0, "Error while sending a burst");
      NotifyTxEnd (m_currentBurst);
    }
  else
    {
      StartSendDummyFecBlock (false,modulationType,direction);
    }

The assert is hit for the test program (posted here by Red Zhaoyj):
https://groups.google.com/forum/#!topic/ns-3-users/FOimSsaojis

Removing the assert makes the program end, but I'm quite sure that it's not that simple.