[ns] R: throughput of 802.11b

[Marco Fiore]

You might find the following link interesting:

http://www.ece.rice.
edu/~jpr/ns/docs/ns-802_11b.html

bye,

Marco


>----Messaggio 
originale----
>Da: andrew.hy at 163.com
>Data: 11-mag-2008 10.46 AM
>A: 
<ns-users at ISI.EDU>
>Ogg: [ns] throughput of 802.11b
>
>
>Hi all,
>    I 
have tried to run 802.11b in ns2, and I use the following setting:
>    
Mac/802_11 set    SlotTime_            0.000020        ;# 20us
>    
Mac/802_11 set    SIFS_                0.000010        ;# 10us
>    
Mac/802_11 set    PreambleLength_      144             ;# 144 bits
>    
Mac/802_11 set    PLCPHeaderLength_    48              ;# 48 bits
>    
Mac/802_11 set    PLCPDataRate_        1.0e6           ;# 1 Mbps
>    
Mac/802_11 set    dataRate_            11.0e6          ;# 11 Mbps
>    
Mac/802_11 set    basicRate_           1.0e6           ;# 1 Mbps
> 
>    However, it turns out that the actually achieved throughput of a 
tcp connection and a cbr connection is around 1.34Mbps and 3Mbps 
respectively, can anyone tell me why?
>    
>    Thanks in advance!
> 
>