> 1. Does NS-3 support WSN's .
> 2. Can I use 802.15.4 protocol for my nodes.
no.
> 3. Is there support for Node Battery tracking mechanism available in
> NS-3.
no, but this is fairly easy to do. See:
http://groups.google.com/group/ns-3-users/search?group=ns-3-users&q=energy&qt_g=Search+this+group
> 4. If none of the above are supported, what is the closest I can come
> to simulating ym WSN network, and will it be accepted by the
> international community?
ns-3 has fairly decent and detailed 802.11 models so you could use this
as a MAC+PHY model. I don't know how relevant that would be for your
application though.
Mathieu