On May 10, 2006, at 4:30 PM, Avinash Sridharan wrote:
Hi Venkat/Rob,
To the best of my knowledge attleast in tinyos-1.x the default
radio model (not sure how you can replace this in 1.x) the input is
link PRR's. That is you can use experimental data or use an
analytical model to generate link PRR's for your topology (for e.g.
use lossy builder) and give this as an input to to TOSSIM-1.x.
Hence the simulation has no notion of power.
However in TOSSIM-2.x the radio model uses the notion of link
gains to emulate packet losses and hence 2.x might actually might
be able to get singal strength as part of the message.
That's correct about 2.x: because it uses link gains getting RSSI
should be possible. I haven't yet implemented the interfaces that
would let you get RSSI on packets, though. But they'll definitely be
in for the next beta release (in a month or so) when the tree moves
off the branch.
Phil
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