On Aug 27, 2008, at 9:41 PM, Amar Sahu wrote: > Hi All, > I am Amar Sahu presently working at CEDT, IISc Bangalore. > I have been working with Collection Tree Protocol (CTP). I am using > XE1205 MAC and is LPL enabled. One thing I have observed in CTP is > that the current consumed by the routing packet is high (60 mA for > each routing packet) and the time corresponding to this current is > also high (2 Seconds). Theoretically my data rate being 76200 bits > per second and the routing packet length being 9 bytes, the time > taken should be 72/76200 = 0.0944 ms. (formula = Number of bits in > the routing packet/ data rate). But in my case the amount of time > the radio is ‘ON’ while transmitting a routing packet is roughly 2 > seconds. > What is the reason behind such a delay? > How should I over come this issue?
LPL reduces idle listening energy by trading off transmit energy. Nodes send longer packets (long preambles, cyclic send, etc.) so that nodes don't always have to be listening. Phil _______________________________________________ Tinyos-help mailing list [email protected] https://www.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
