[Tinyos-help] no implementation in /platforms/micaz/chips/cc2420/sim/SimCC2420C.nc in Tinyos-2.x

[Philip Levis]

On Jul 3, 2006, at 7:13 PM, Liu Haibin wrote:

> Then is there any plan to implement CC2420 simulation? How accurate  
> is the current packet level simulation?
>
> Is it because CC2420 only provides packet-level interface, that's  
> why there's no CC2420 simulation implementation? So how energy  
> efficient is the hardware implemented MAC in CC2420? Does it mean  
> there's no B-MAC in CC2420?
>
>

I personally don't plan to implement simulation support for the  
CC2420. There's a version that was implemented for 1.x which is  
reasonably functional but makes a few assumptions which no longer  
hold in 2.x; porting it would require some, but not a lot of work. If  
someone were to write a TOSSIM port, I'd be happy to check it in.

"Accuracy" is a tough thing to measure. On one hand, the core TOSSIM  
interference and propagation model is based off of data from USC; on  
the other, its noise model is very simplistic, and so you see much  
less variation in TOSSIM than you do in real networks.

Phil