[ns] Join my network on LinkedIn

2011-06-09 Thread romain jacquet via LinkedIn

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[ns] Invitation to connect on LinkedIn

2011-06-09 Thread Georgios KIOUMOURTZIS via LinkedIn

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Georgios KIOUMOURTZIS requested to add you as a connection on LinkedIn:
  
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Rishabh,

I'd like to add you to my professional network on LinkedIn.

- Georgios

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[ns] caculation of routing parameters like routing overhead

2011-06-09 Thread umair shah

Hi I need AWK script to measure routing overhead,normalized routing 
overhead,end to end delay,throughput etc for routing protocols ,Also tell me 
how to use these scripts and can there be any other method to do this all 
.thanks


[ns] trace file analysis

2011-06-09 Thread umair shah

 Dear all,

  

  

 I've read some research papers in which they compared performances of 

 different routing using some normal performance metrics, such as:

 Packet delivery fraction

 routing control overhead

 Average end-to-end delay

 Average number of hops 

 ..

 How can we have these things using Ns2 simulation ? I can not see it from 

 trace file after simulation.

 I really appreciate your help!

  

 Regards,


[ns] enable/disable Wireless interface of a node

2011-06-09 Thread Zakia Khalfallah


Hi friends,
Someone knows how to enable/disable a wireless interface of a node ?
So , how to add the concerned command in NS ?
Thank you,
Good luck,
ZAK
  


[ns] NRTE drops with AODV/802.15.4

2011-06-09 Thread Molta, Paul

Hi,

I am simulating a ZigBee network, all nodes are FFD with a many-to-one traffic 
pattern and I am getting terrible delivery ratios and it is due to nodes not 
establishing routes. Nodes will never complete a single packet during the 
simulation, however there doesn't seem to be a pattern from one simulation to 
the next. If I just change the sending interval (using cbrgen.tcl for traffic 
generation) a different set of nodes will fail to establish routes. Has anyone 
come across this? Also, what method to use to get the route table info from 
aodv.h or god.h? I'll be happy to provide code if people want, but number of 
nodes doesn't seem to affect the results that much (also surprising). Any 
advice would be great.

Thanks.


[ns] Simulation stopped : Memory allocation

2011-06-09 Thread Zakia Khalfallah








Hi friends, anyone has encountered this problem while runing a simulation ? and 
what's the solution ?
terminate called after throwing an instance of 'std::bad_alloc'
  what():  St9bad_alloc
unable to alloc 26 bytes
...unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
unable to alloc 10 bytes
Bus errorThank you,

  


[ns] How to free memory ?

2011-06-09 Thread Zakia Khalfallah


Hi Friends,
I have long simulations in a wide network and I need to free the memory after 
allocating it.
i hear about the function Packet::free( ) like Packet::alloc( ) which is 
already called in some protocol code ( AODV for example )
So how can i add this function if it's the true one?

ps : the error that appears to me ( unable to allocate X bytes ) is 
originated from the funtion Tcl_Alloc  in ns2-33/lib/dmalloc_support.cc
So, if someone had added the function  free in that file ?

Thanks for help,
Good luck,
Zak