How do I replicate this in TOSSIM? Because I've set up a hidden terminal topology using 3 nodes and the middle node receives both messages.
On Thu, Mar 6, 2008 at 6:20 PM, Philip Levis <[EMAIL PROTECTED]> wrote: > > On Mar 6, 2008, at 4:55 PM, Yi-Tao Wang wrote: > > > As far as I know, there's no radio interference modeling. So it > > doesn't take care of either problem. It's strange because I thought it > > took care of this in TOSSIM for tinyos 1.x, but I guess they must have > > changed the implementation. > > > > David > > > > On Thu, Mar 6, 2008 at 12:50 PM, Pengjun Pan <[EMAIL PROTECTED]> wrote: > >> > >> > >> Hi. > >> > >> Here is a short question. Does TOSSIM have any sort of machanism > >> to deal > >> with hidden and exposed node problems? Any reply or clue is > >> appreciated. > >> Thanks in advance. > >> > > Er -- it takes care of both cases. The major difference between > TOSSIM in 1.x and 2.x is 1.x uses a bit-error model with binary > interference and CSMA, while 2.x uses an SNR-based packet error model > with SINR-based interference and CSMA. So you get the hidden terminal > problem, the exposed terminal problem, strongest-first versus > stronger-second, etc. > > Phil > > Phil > _______________________________________________ Tinyos-help mailing list Tinyos-help@millennium.berkeley.edu https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
