[ns] (Question) multicast in base station network

[sskang@cse.msu.edu]

Dear Managers,

How are you?
I'm a student interested in ns-2 simulator.

The similator supports "multicasting" and "wireless communication".
My question is that whether the simulator supports multicasting
 in base station network.
I couldn't find any simulation scripts of both cases.
My ns-2 version is ns-2.1b7

If it is not yet supported, would you comment me about
 any plan to include it in next version of ns-2.

Thanks for your reply in advance.   :)

Have a great day
Kang