In 5.1, which manufacturer(s) provided the nodes in the testbed? Mixing nodes from different manufacturers (ie, Berkeley Telos, Moteiv Tmote Sky, and/or TelosB clones from others) can be the cause of the "stray" node.
On 2/7/07, Philip Levis <[EMAIL PROTECTED]> wrote:
On Wed, 2007-02-07 at 13:09, Robert Szewczyk wrote: > Yes, you can compare these powers directly. The sensitivity threshold > is -95 dBm, and consequently CC2420 will not report RSSI below that > threshold. The RSSI reported is the absolute measure of the energy > in the incoming signal; you can access RSSI when there is no packet > being received, and there will be readings of high RSSI that will not > result in a packet reception. You can estimate noise and interference > by measuring the RSSI during the idle times. The receive sensitivity varies over nodes; some are better than others. Section 5.1 of this tech report http://sing.stanford.edu/pubs/sing-06-00.pdf goes into some of the details. Phil _______________________________________________ Tinyos-help mailing list [email protected] https://mail.millennium.berkeley.edu/cgi-bin/mailman/listinfo/tinyos-help
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