[Ns-developers] Announcement of NS-2 802.11Ext

[Francisco J. Ros]

Sorry for the noise, my previous e-mail was intended for Felix and not the 
developers list.

Regards,
fran

On Friday 18 January 2008 12:31, Francisco J. Ros wrote:
> Hello Felix,
>
> First, I'd like to thank you (and your colleagues) for releasing such a
> useful implementation under a free software license. Hope to see this
> within the official NS-2 release soon :)
>
> I've been playing with the code for the last days and have performed some
> simple simulations. I've also looked at the MAC code, where didn't find
> bugs or misbehaviors.
>
> However, I'm facing a problem probably related with the PHY layer. Attached
> you can find a script which establishes a CBR flow between 2 nodes in a 10
> nodes static scenario using AODV. The simulation runs as expected when the
> RTS/CTS exchange is disabled, but when it is enabled, the AODV RREP issued
> by the destination never reaches its next hop. It sends an ARP REQUEST
> which arrives at the next hop. In order to answer with an ARP REPLY, the
> next hop issues an RTS. This is received by the destination, which sends
> the corresponding CTS. But this message is never received by the next hop
> at the PHY level.
>
> I'm not sure if the problem described above is because of a bad
> configuration or a bug in the code. Any idea about this regard would be
> more than welcome.
>
> Finally, I'd like to point out two little details about the documentation:
>
> - Section 1.2.3. wlan-phy.{h|cc} must be wireless-phyExt.{h|cc}
> - Section 1.3.1. It's said that several scripts are included. I couldn't
> find them though. I'm especially interested in IEEE802-11p.tcl, so it would
> be great if you could send it to me.
>
> Regards,
> fran
>
> On Monday 07 January 2008 13:04, Felix Schmidt-Eisenlohr wrote:
> > Hi all,
> >
> > a new version of our extension to the NS-2 wireless modules formerly
> > known as "Overhaul of IEEE 802.11 modeling and simulation architecture
> > in NS-2", now named "NS-2-802.11Ext", is available for download and
> > testing on our website:
> >
> > http://dsn.tm.uni-karlsruhe.de/english/Overhaul_NS-2.php
> >
> > As it is planned to integrate this extension into NS-2 we kindly ask
> > anyone interested to apply the patch, run some tests and give feedback
> > in order to eliminate bugs, inaccuracies or unclear documentation
> > issues.
> >
> > Thanks and best regards
> >
> >
> > Felix
> >
> > --
> > Dipl.-Inform. Felix Schmidt-Eisenlohr
> > University of Karlsruhe (TH)
> > Institute of Telematics
> > Decentralized Systems and Network Services Research Group
> >
> > Engesserstr. 6, D-76131 Karlsruhe, Germany building 20.52, room 307
> >
> > phone: +49 721 608 6626
> > fax:   +49 721 608 6789
> > felix.schmidt-eisenlohr at kit.edu
> > http://dsn.tm.uka.de

-- 
Francisco J. Ros, Ph.D. Student
Dept. of Information and Communications Engineering
University of Murcia, Murcia (Spain)

http://masimum.inf.um.es/fjrm/