Dear ns-users,
I would like to thank Mr. Svilen Ivanov for his help.
I inserted Mr. Svilen's code in my code as it is, and I monitored the output but
I got nothing or changes.
I used the following command to specify the Error model for mobile node.
$ns_ node-config ErrProc -Incoming ErrProc "Uniform"
by the way, there is no errors of running the file after these changes.
thank you in advance for clarification.
Kind Regards
*********************************************************************
the attached example script is for network emulation, but you should be
able to use the error modeling for a simulation as well.
The lines 55 - 62 create an object in each node for error modeling. It
drops 1 percent of the packets.
proc UniformErr {} {
set err [new ErrorModel]
$err unit packet
$err set rate_ 0.01
$err ranvar [new RandomVariable/Uniform]
$err drop-target [new Agent/Null]
return $err
}
Line 89
-IncomingErrProc UniformErr
is also important. It is more realistic to use IncommingErrProc, because
in this case each node determines whether it receives a packet or not on
its own. Therefore a subset of all nodes around receive a packet. In the
case of OutgoingErrProc all the nodes around either receive a packet or not.
Regards,
Svilen
qadous at ccse.kfupm.edu.sa wrote:
>Dear ns users,
>
>Would you please send me examples for Error modeling in ns-22.9.
>
>how to model that with wireless nodes.
>
>The ns tutorial is not good enough.
>
>thank you in advance.
>Regards
>
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