GPSR patch for ns-2.31

Sorry for keep you waiting but obligations come first and unfortunately they never end. You can download the patch through here . Just read the README file and follow the instructions. For comments and anything else click here

It would be very useful if one or a group of students were assigned the project of developing some additions for GPSR like the format and anything useful for the simulations.

I will try to find time and present some scripts I used for collecting statistical data, creating the traffic etc.

Joomla 1.5 is ready!

Joomla 1.5 is up and running! Click here to download it and here to see the functional overview.

I still remember the first announcement of the roadmap for version 1.1 . I think two years and some months passed. Until now we saw many changes, many delays and, after some time, 2 beta versions and 4 Release Candidates. Many JoomlaDays were settled and with a lot of PBF (Pizza, Bugs and Fun) we have the stable version of Joomla 1.5 with the name Khepri. Strange names but why not?

Personally, I say "thank you developers and everyone who participated in the JoomlaDays".

GPSR code for ns-2

I gave many hours trying to identify what was wrong with their instructions. And after I found crossing informations - even in Chinese - I did a good brain "compilation", many tests, googling and found the solution. It is my obligation to present what I found because as I saw in ns-2 mailing lists many people wanted to simulate GPSR. It is true that they didn't google and wanted to get the solution from the others ready-made. But on the other hand I didn't like the fact that there is nothing concrete.

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Optimize your webpages

I think that Manuel Lemos does not need a lot of references. Every PHP developer has heard his name. A few days ago he wrote a very useful article for webpage optimization and since I have the time now I must mention it.

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Disappointed with ns-2

I am writing a survey for some common routing protocols, specifically the AODV, DSDV, DSR, TORA, GPSR, OLSR. For the simulations I chose ns-2 (latest version 2.31) mostly because it can be used in Linux although it is not installed from a deb/rpm file. I made some simulations and I wrote some shell and awk scripts for extracting data for statistics.

Although I have spent much time for scripting , I am not disappointed with this. My disappointment comes from the lack of help from the developers and expert users. I and everybody else who tried to make a simulation using TORA protocol had almost the same problem. But as it is seen in the ns-2 mailing lists when all these people sent an e-mail asking for help nobody answered. Even the sample scenarios for TORA do not work. The problem most people have is this:

...
"$ns node"
("for" body line 2)
invoked from within
"for {set i 0} {$i < $val(nn) } { incr i } { set node_($i) [$ns node] }" (file "10nodes_traffic50_stable.tcl" line 59)
....

I can say that maybe some settings are missing but the same happens with the samples!

The programming language of ns-2 is Tcl and C. Tcl is a little difficult, at least for me, language although I made some modifications to some Tcl programs. If I had more time I would learn Tcl but I don't. I tried to find some older versions of ns-2 like 2.26 but the latest I found is 2.29.

I hope that ns-3 will solve these problems. When I finish my work I will upload all my scripts because they are proven to be very useful.