[ns] FW: setting loss rate for wireless domain

[Semra YILMAZ]

dear all,
i really do not understand why i cannot set loss rate. i want to increase wireless loss rate but my script below does not have any effect in the result. i am expecting that the throughput at the receiver should decrease when loss rate increase in the medium, but not.
please help if you know the reason.
best,
semra

________________________________

From: Semra YILMAZ
Sent: Wed 02.04.2008 20:32
To: ns-users at ISI.EDU
Subject: setting loss rate for wireless domain


hello,
i want to set loss rate for wireless scenario and i am using the following line for setting loss rate. when i change the rate from 0.1 to 0.3, i don't see any difference in the throughput of receiving packets at the receiver (i use tracegrapgh to analyze). i think i am missing something. if you have any idea, i will appreciate.
best,
semra
 
$ns_ node-config -ErrProc losses_module 

proc losses_module {} {

set loss_module [new ErrorModel]

$loss_module set rate_ 0.1

$loss_module unit pkt

$loss_module ranvar [new RandomVariable/Uniform]

$loss_module drop-target[new Agent/Null]

exit 0

}

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