I looked at the tutorial documents of Tinyos 2.0.2. The propagation model we can use is large-scale propagation loss model but not small-scale propagation model such as Rayleigh fading. Has anyone done anything in modeling small-scale propagation? Do you think if we can make some revision to get something like a Rayleigh fading model? Thanks.
Baozhi On Dec 20, 2007 5:32 AM, Baozhi Chen <[EMAIL PROTECTED]> wrote: > Hi, > > As I read the documents by Dr. Levis (written in 2003), I found that it > seems you can not change the BERs during the simulation. > For example, if I want to model a time-varying channel instead of static > channel, I will need to change the BER during simulation. > So far from the documents, a configuration file for channel BERs are used > and read during the simulation. I wonder if I change these > parameters during the simulation, whether the simulator will notice it and > change the BERs accordingly. > > The other way mentioned is to use TinyViz, a tool provided by Tinyos. But > it can only change BER depending on the change of topology (ie. distance > between nodes, etc) and use Gaussian packet loss probability distribution > for each distance, which may not fit if other distribution > is used. > > Let me know if you know there is updated information regarding this. > Thanks. > > Baozhi
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