Dear, Which hardware and which tinyos version do you use ? I was having such problem with IRIS motes. I have finally switched to another routing algorithm but I was still experiencing issues like this. Finally it was found as a bug inside the rf230 driver and was fixed on the trunk repository. I've still did'nt find enough time to see if it also fix my CTP problem...
Kind regards, Fabrice 2011/1/3 蔡沅峰 <[email protected]> > Dear all, > > We’ve recently tested the performance of CTP under high data rate scenario, > though it is known that CTP is suitable under low data rate situation. The > data rate is 5 packets per seconds (80 bytes for payload) and there are at > most 8 sources and 12 relays in our testbed. We found in our experiments > that the PDR of some sources is very low, so we logged the send and receive > events. It seems the program runs normally, but after some period of time > (about five to ten minutes) , the packets from some relays can’t be heard by > its neighbors. We are not sure whether it is the hardware problem or code > problem. Have anyone encounter this problem or have anyone ever implemented > CTP under high data rate scenario? > > > > Best regards, > > > Sean > > > > _______________________________________________ > Tinyos-help mailing list > [email protected] > https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help >
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