wireless lan

[Matthew N White <mw6e@andrew.cmu.edu>]

Hi,
	I am trying to simulate a wireless lan with two nodes that are
communicating with TCP.  Basically, I create two nodes and then attempt 
to create a lan with the following command:

set lan [$ns make-lan $mobilelist 2Mb 1ms LL Queue/DropTail Mac/802_11 \
             Channel/WirelessChannel Phy/WirelessPhy ]

However, the simulation dumps core in wireless-phy.cc because the ant_
variable in this module was not initialized.  Does anyone have any
suggestions on what to do (e.g. how to set antennas, etc.) ?

Thanks,
matt