Hi,

I have a problem with the physical layer parameters for DSDV routing protocol. 
I am simulating AODV, DSR and DSDV and for AODV and DSR the physical layer 
parameters for 250 or 100 meters work fine. DSDV however hangs and will not 
simulate for the same physical layer settings, the only setting that works with 
DSDV is RXThresh_ 1.47635e-07 this is the only setting I can get DSDV to work 
with and due to this I cannot accurately compare the routing protocols for my 
project. I have a problem where I cannot obtain any results for Normalised 
Routing Load for DSDV when running the awk scripts, I am assuming the the 
problems with the output I need from the awk scripts may be due to large packet 
loss from not being able to simulate DSDV under physical layer settings other 
than the one stated above. I would like to simulate DSDV for 250 meters and 100 
meters. The following parameters are what I use for AODV and DSR for 250 meter 
range. When simulating DSDV I have to omit all of the 250!
  meter range attributes and use only RXThresh_ 1.47635e-07 otherwise my 
simulation hangs.

set val(txPower)         0.66  ; #250 meters
Phy/WirelessPhy set CPThresh_ 10.0
Phy/WirelessPhy set RXThresh_ 3.652e-10 ;#250 meters
Phy/WirelessPhy set Pt_ 0.2818 ;#250 meters tx distance
Phy/WirelessPhy set CSThresh_ 1.559e-11 ;#250 meters
Phy/WirelessPhy set Rb_ 2*1e6
Phy/WirelessPhy set freq_ 914e+6
Phy/WirelessPhy set L_ 1.0

I cannot measure NRL (Normalised Routing Load) through my awk scripts as 
routing packets appear as 0.00. If I could overcome the problem with the 
physical layer settings it would enable me to compare these three routing 
protocols accurately. If anyone has encountered this problem or knows how to 
resolve it please help me overcome this problem.

Thanks,
C. Jethwani
                                          

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