[ns] Bit error models for NS-2

2007-09-12 Thread Raghu-kisore Neelisetti
Hi, I would apprceiate if you could suggest references to implementations taht simulate wireless losses based on SNR. I mean an error model for Ns-2 that simulates BER Vs SNR graph. Any hint or idea would help. Thanks a lot, Raghu.

[ns] questions about using errormodel in wireless network

2007-06-15 Thread Raghu-kisore Neelisetti
Hello every one, I would appreciate if some one could explain the purpose of m_trunit and m_sttype parameters. second question is, set tmp [new ErrorModel/Uniform .9 pkt] mean an error module of loss rate 90% is created. Thanks a lot. Raghu.

[ns] problem with setting label of a node.

2007-03-17 Thread Raghu-kisore Neelisetti
Hello Every one, Iam trying to set the label of a node with a string of length (approximately) 24 characters. But the nam tool is displaying only the first 19 characters. I would like to know if there is a limit on the length of the label that can be used? I would greatly appreciate if you

[ns] Using Directed Diffusion in ns-2.29

2006-11-28 Thread Raghu-kisore Neelisetti
Hello Every one, The class DiffusionRouting has a member variable timers_manager (of type TimerManager). If i were to activate the flag NS_DIFFUSION then i see that the function "timers_manager_->executeAllExpiredTimers(); " never gets called (as it is always gets only called from the #ifndef NS_

[ns] how to execure directed diffusion in ns-2?

2006-11-25 Thread Raghu-kisore Neelisetti
Hello every one, Iam planning to run a few experiments in ns-2.29 related to wireless sensor networks. For this i implemented a new filter and a new application(a sort of constant bit rate application) in ns-2. I have a simple tcl script with the nodes laid out in a linear fashion. 0---1---2.

Re: [ns] Reconfigure and rebuild Problem in NS-URgent

2006-10-23 Thread Raghu-kisore Neelisetti
Hello Desai, I don't actually understand the sequence of steps you said. But in my view at the end of all the changes, some how the class definition related to "Queue/WFQ" is missing in your installation. In order to verify this run the following command inside the ns-2 directory and see if y

[ns] node coloring in wireless networks.

2006-10-19 Thread Raghu-kisore Neelisetti
Hello every one, can any one tellme how to assign colors to different flows in wireless networks. Is it possible in the first place? Any sample code will be of great help. I followed the same steps as we normally do for wired networks but it doesn't seem to work. Also please let me know if it is

[ns] using nam in a mobile scenario.

2006-10-16 Thread Raghu-kisore Neelisetti
Hello Every one, Iam running some simulations involving study of wireless network. I generated the mobility scenario for 100 nodes using setdest utility of ns-2. can any one please let me know how to use nam so that to display the contents of out.nam (this is my nam trace file). i went through

[ns] Issues debugginf ns-2.29

2006-09-06 Thread Raghu-kisore Neelisetti
Hello Every one, I made some modification to the ns-2.29 and was running my new version. But after running for some time it crashes leaving the following information. I was wondering if any one has suggestion about to make use of the following information to debug ns-2.29. *** glibc detected

[ns] GPSR implementation for ns2

2006-09-04 Thread Raghu-kisore Neelisetti
Hi every one, can any one provide me with a link that provides GPSR implementation for ns-2? Thanks Raghu.