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 !
> 

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