[ns] How a 802.11 node communicate with a 802.16 node?

[simayeji]

Hi to all,
In the nist-wimax patch to ns2, i want to create a scenario in which 
802.11 nodes should communicate with 802.16 nodes. But i found that 
neither direct communication nor forwarding packets between nodes of 
different types is OK. 
Does anyone know how to do it, under nist-wimax patch or other extension
to ns2? Plz let me know, and any suggestion is highly appreciated. Thank you.