>> Q1. How is this message strength calculated? Is this strength the average of the whole message? >> Does this strength consider interleaving caused by multipath? Is there anybody who can explain the ADC channel?
The RSSI, using the CC2420 is calculated averaging the incoming message power over 8 symbols of the message. The multipath effects are partially avoided using a direct spread spectrum coding, before the modulation of the signal at the end of the tranceiver. >> Q2. In AM.h file, there is a feild lqi which is not transmitted or received on the radio. This lqi indicates the Link Quality Indication(LQI) of the message. How is this lqi calculated? I read >>cc2420 data sheet on page 50, but I am still confused. may be is it an estimation of the channel link quality made locally by the node? that kind of measures are frequent in tlc system, but I still have to look at the chipcon datasheet..... _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
