R help - Jun 2010 - using R and for simulating a wireless network

Hi,

I want to simulate a simple wireless network in R.
There is a source and destination and source sends some data packets to
the destination and some routing table and so on.
Does anyone have any idea and knowledge about this or are there any
packages for this.
The thing that I am going to do is wiring a simple simulator using R
that a node sends some packet and using some table to reach the
destination (Like Ns-2 but with less details)

Best Regards,
Amir