[ns] Measuring channel access probabilty

2014-02-11 Thread Debarshi Sanyal
Hi, In a wireless network testbed, packet statistics at the receiver include the list of packets that reached the receiver node. Each packet has a source id and the transmission timestamp. Assuming a single hop network, how do we calculate the channel access probability of a node here? Note

[ns] Observations and Query on holdoff exponents in IEEE 802.16 mesh

2010-12-07 Thread Debarshi Sanyal
Hi, We were performing some experiments in NS-2 using the IEEE 802.16 / WiMAX mesh patch (http://cng1.iet.unipi.it/wiki/index.php/Ns2mesh80216) on tuning the holdoff exponents for distributed coordinated scheduler in IEEE 802.16 mesh. *Setup: * We considered a chain of odd number of nodes. For

[ns] IEEE 802.11 VoIP patch for NS-2

2010-10-06 Thread Debarshi Sanyal
Hi, Can anyone please provide an NS-2 patch and test scripts for VoIP over IEEE 802.11? We are looking for a patch that has the optimizations proposed in D. Niculescu, S. Ganguly, K. Kim, and R. Izmailov, “Performance of VoIP in a 802.11-based Wireless Mesh

[ns] Patch for ETX and mETX routing metrics for wireless mesh networks

2009-11-09 Thread Debarshi Sanyal
Hi, Is there an NS-2 patch for ETX and mETX routing metrics for wireless mesh networks? Regards, Debarshi

Re: [ns] where is the hdr_flags constructed?

2008-01-28 Thread Debarshi Sanyal
Hi All, I am facing a serious problem when I run NS-2 simulations of IEEE 802.11bextending over 200 seconds with cbr traffic rate of each node = 11Mbps and number of nodes = 50. The process is killed after around 100 seconds of simulation. This occurs even if I turn off all traces. Any clues

[ns] [URGENT] Problems in running long-duration simulations in NS-2

2008-01-28 Thread Debarshi Sanyal
Hi All, I am facing a serious problem when I run NS-2 simulations of IEEE 802.11bextending over 200 seconds with cbr traffic rate of each node = 11Mbps and number of nodes = 50. The process is killed after around 100 seconds of simulation. This occurs even if I turn off all traces. Any clues

[ns] Saturation Throughput of IEEE 802.11b

2008-01-16 Thread Debarshi Sanyal
Hi, Can anyone please provide a script to simulate and measure the saturation throughput of a set of nodes in IEEE 802.11b network in NS-2? A tcl script to set up the topology and determine the saturation throughput are urgently required. Regards, Debarshi

Re: [ns] Fwd: Urgent help required: Unable to build xgraph

2006-12-27 Thread Debarshi Sanyal
Hi All, Please let me know how to build xgraph-12.1 given the issues I am facing. The build is on RHEL (Red Hat Enterprise Linux) 3 (Taroon). Appreciate your response in this regard. Regards, Debarshi On 12/27/06, Debarshi Sanyal [EMAIL PROTECTED] wrote: Thanks you so much, Larry

[ns] Help required: Unable to build xgraph

2006-12-26 Thread Debarshi Sanyal
Hi, Festive greetings to you all! I recently installed ns2 on Red Hat Linux 9. I am unable to build xgraph although other components of ns2 are getting built correctly. When I run ./configure followed by make in the xgraph directory, it tells: Makefile:255: *** missing separator. Stop.

Re: [ns] Fwd: Urgent help required: Unable to build xgraph

2006-12-26 Thread Debarshi Sanyal
And yet when I run make, it errors out. I have tried after including the above Xdevelopment headers and libraries in PATH, but the issue persists. Could you please suggest a solution? Thanks a lot, Debarshi On 12/27/06, Larry Brigman [EMAIL PROTECTED] wrote: On 12/26/06, Debarshi Sanyal [EMAIL