Forwarded to the authors of new 802.11Ext. Please reply on the ns user mailing list. ________________________________
From: [EMAIL PROTECTED] on behalf of PeterCh Sent: Wed 26/11/2008 12:17 PM To: ns-users@ISI.EDU Subject: Re: [ns] Parameters for 802.11b on NS 2.33/802.11Ext Hello! I have the same question, maybe someone could help? Thanks rvannier wrote: > > Does anyone have good parameters to simulate a 802.11b interface card with > the new 802.11Ext layer ? > > I tried to use the parameters I used in NS-2.31, but the results now are > very different (mainly because there is no more RXTresh_). With these > parameters, nodes can communicate even at carrier sensing range (although > the carrier sensing range should be 2 to 3 times the communication range). > So I tried with the default Phy/WirelessPhyExt parameters and the results > are similar (but for the communication range, since the transmission power > changes) > > These are the parameters I use. They were taken from the specifications of > an Avaya card : > > set val(chan) Channel/WirelessChannel ;#Channel Type > set val(prop) Propagation/TwoRayGround ;# radio-propagation > model > set val(netif) Phy/WirelessPhyExt ;# network interface > type > set val(mac) Mac/802_11Ext ;# MAC type > set val(ifq) Queue/DropTail/PriQueue ;# interface queue type > set val(ll) LL ;# link layer type > set val(ant) Antenna/OmniAntenna ;# antenna model > set val(ifqlen) 50 ;# max packet in ifq > > Phy/WirelessPhyExt set CSThresh_ 6.309573444801943e-12 > Phy/WirelessPhyExt set Pt_ 0.031 > Phy/WirelessPhyExt set freq_ 2.457e9 > Phy/WirelessPhyExt set L_ 1.0 > Phy/WirelessPhyExt set bandwidth_ 11e6 > Phy/WirelessPhyExt set trace_dist 400; > Phy/WirelessPhyExt set BasicModulationScheme_ 0 ;# BPSK > > Mac/802_11Ext set dataRate_ 11Mb > Mac/802_11Ext set CWMin_ 31 > Mac/802_11Ext set CWMax_ 1023 > Mac/802_11Ext set SlotTime_ 0.000020 > Mac/802_11Ext set SIFS_ 0.000010 > Mac/802_11Ext set PreambleLength_ 144 > Mac/802_11Ext set PLCPHeaderLength_ 48 > Mac/802_11Ext set PLCPDataRate_ 1.0e6 > Mac/802_11Ext set RTSThreshold_ 2000 > Mac/802_11Ext set ShortRetryLimit_ 7 > Mac/802_11Ext set LongRetryLimit_ 4 > > > Thanks for your help ! > -- View this message in context: http://www.nabble.com/Parameters-for-802.11b-on-NS-2.33-802.11Ext-tp18010313p20699501.html Sent from the ns-users mailing list archive at Nabble.com.
