[sim-wg] TOSSIM and the 2.1 Release

[Philip Levis]

On Sep 19, 2007, at 12:23 PM, Chad Metcalf wrote:

> So things have been quiet and we all know that the 2.1 release is
> going to sneak up faster then one might like. So given our wide
> dispersion across the time zones we should take a first cut by email.
>
> I'd like to see the wg get a handful of things into TOSSIM for the 2.1
> release. Below is a list I've seen discussed and thing can reasonably
> be done before the end of the year and who I think "might be the right
> person for the job".
>
> SF for TOSSIM - I've got a version of this working in my directory in
> contrib. The question is, is the simple implementation enough, did I
> choose the right way of doing things, what else is needed, etc.  I've
> seen requests for this on the help list so I think its inclusion would
> be helpful. I'll start a separate thread for this later.

Life is going to be very busy for me for the next few weeks (NSDI is  
approaching), but I might be able to take a look today. Having a  
serial forwarder would require either multithreading in Python or  
polling the SF, right? Or did you write it as C/C++?

>
> mica2 support - IE make mica2 sim. As discussed in prior threads. This
> work lives in Venkatesh's work.

It would be great to incorporate this into the main tree. My one  
major concern is radio simulation: if there's power information,  
people will latch onto it as an evaluation mechanism, which means  
that the radio simulation needs to be reasonable (or at least  
pessimistic).


>
> Improved RSSI model - Stemming from the latest round of updates.
> Currently no one in particular is slated for this work. Tal Rusak, has
> considered joining, this might be something he's interested in.

Tal and I have been working on this. At the very least, I am going to  
incorporate a log-shadowing model to add some short-term temporal  
variation to RSSI. Tal's been looking at how to model longer-term  
swings.

Phil