[ns] Rate Adaptation for the Multirate 802_11 using ARF Algorithm

Dear all,

I am trying to implement the link adaptation of the 802.11g using the ARF (or the RBAR) algorithm. I added the following piece of code to the adhoc_tcp.tcl (the sample file in the dei80211mr-1.1.4), but doesn't change the rate correctly. Can anyone provide me some hints in this regard?

set ra($i) [new RateAdapter/ARF]
$ra($i) attach2mac $mac($i)
$ra($i) use80211g
$ra($i) setmodeatindex 0

Thank you!
Firooz