Hi there

I think there is no other cleaner or easiar way to do that unless you
modify the code.

One thing you have to be aware of is that by modifying the transmission
range, you are only changing the receiver threshold, A  distance from
which a receiver can receive.

Again there are three different transmit power levels that are given for
the wavelan Modem

40m  8.5872e-4
100m 7.214e-3
250m 02818

Maybe you need to use one of these parameters, the closest to your
required transmission range and then calculate the RXthreshold values, to
get a better result.
Also you need to be aware of CSthreshold,. If you are limiting the node's
transmission range to 40m or 100m  or any value, the CSthreshold value,
will still be very large, about 550m by default, you might also want to
tweak that parameter to see if  this improves your results

I hope this helps

>  Hi,
>
> Can you tell me a clean way to change transmission and interference ranges
> in ns-2?
> I tried the threshold program given ~ns/indep-utils/propagation/ but that
> somehow is not giving correct values.
>
> Regards,
> --
> Ashish Sangwan
> B.Tech, Computer Science & Engineering
> IIT Delhi
>
> --
> I do know everything, just not all at once. It's a virtual memory problem.
>


Kind regards

Qasim Raza Iqbal
PhD Candidate,
ACNRG Lab N504,  Office N505
Adaptive Communications Networks Research Group,
School of Engineering And Applied Science
Aston University
Birmingham  B4 7ET
United Kingdom
http://www.ee.aston.ac.uk/research/acrg/index.html


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