There is no such thing as a lossless radio link. This is a function of Physics. The only question that remains is where to put the retransmission logic. There are two common answers to this question: 1) between adjacent nodes (data-link/network layer) 2) between communication end-points (transport/session/application layer)
The path you choose depends on many factors and is the subject of considerable study (common to wire-line transmission theory). For example, TCP/IP performs retransmission between network endpoints in the transport (TCP) layer, while IP remains lossy. Usually, for RF links option #2 is the prudent approach. So, if you want to approximate a "lossless" radio model, you might consider applying retransmission logic to your application. R~ > -----Original Message----- > From: [EMAIL PROTECTED] [mailto:tinyos-help- > [EMAIL PROTECTED] On Behalf Of Anu Singh > Sent: Friday, June 15, 2007 6:57 PM > To: [email protected] > Subject: [Tinyos-help] TOSSIM: lossless radio model > > > Hi, > I am using tinyos-2.0. Is there a way to specify the radio model used in > TOSSIM as simple or lossless so that there are no message loss (either > because of collisions or lossy links)? By default the radio model is > lossy. I have also specified all links with gain 0.0 (maximum gain). > > thanks, > -Anu > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
