Here's a link to a mac implementation that will do that http://www.dei.unipd.it/wdyn/?IDsezione=5090
take a look at the infrastruct_rate_adaptation.tcl file in the samples directory, and this should give you a good start. If you want to simulate a 802.11b network (which is what you want to do sounds like it make sure to change $per loadPERTable80211gTrivellato so it loads the b table which is per_table_80211b_intersil_HFA3861B.tcl in the src directory of the dei80211mr distribution also pay attention to $bs_mac basicMode_ Mode6Mb $bs_mac dataMode_ Mode6Mb from the sounds of it you'll want to change this to $bs_mac basicMode_ Mode1Mb $bs_mac dataMode_ Mode11Mb for doing a 802.11b network, the rates you can choose here in doing a b network are listed in the per_table_80211b_intersil_HFA3861B.tcl file I mentioned before. good luck, Ryan On Dec 14, 2007 3:50 AM, Alex Chpenst <[EMAIL PROTECTED]> wrote: > > Hi! > > One very short question: > > Suppose a wireless scenario where a station moves away from the access point. > In practice, the PHY transmission rate is dropping as the distance increases > and signal strength decreases (e.g. from 11Mbps to 5.5Mbps, then to 2Mbps and > then to 1Mbps). > > Is this link adaptation implemented in ns? > > Thanks for any answers or links! > > Alex. > >
