[ns] Conflicting results using GPRS packet

[Fatima Duarte <fatima@dcc.ufmg.br>]

Dear Sirs,

I am a PhD computer science student and i am working with two
undergraduate students in the NS-2 with the GPRS module developed by Ms.

Richa Jain, and i would like to report our results and dicuss the
performance metrics that she has obtained.

First of all we tried to reproduce her experiments for 1 and 5 mobile
stations. For 1 mobile station we have obtained the same result that she

got, according to the trace file available with the GPRS packet,
concerning jitter and delay (around 0.5miliseconds). However, for 5
mobile
stations, despite the fact the delay has increased, it still continued
to
be around 0.5milisencods.

The problem is:
Richa�s result reported at her master dissertation is very different
from
ours. She has obtained a delay around 0.15seconds for 5 mobile stations.

We suppose that this result may be incorrect.
We would like to ask your opinion about this matter.
Any help would be grateful.

thanks in advance.

Fatima Duarte