hi All, 
    I'm wondering about this.
    I have found that mac-csma.{h, cc} exist in $ns/mac/ directory. However, 
mac-csma.o doesnt exist in the same directory.
That means the source code of mac-csma didn't be compiled.

    If my guess is correct, how can I know that Mobile Node has received 
beacons ? ( seems impossible )
My job is need to know how many Access Points are in a Mobile Node's 
transmission range such that
a Mobile Node can choose an Access Point to connect with. Does somebody know 
how to do it in ns2 ?


    By the way, I have also found that p802_15_4csmaca.{h, o, cc} exist in 
$ns/wpan/ . Is it possible that I can refer to the codes
and make a patch for 802.11 ?



Thanks for your reading and wait for responses.
minhong.

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