[Tinyos-help] LQI Correlation Function

[Francis Simoneau]

I am looking for any papers on the Internet that
describe the derivation of the MultiHopLQIM.nc
correlation function.


   uint16_t correlation(uint8_t v) {
     uint16_t c = (80 - (v - 40));
     c = (((c * c) >> 3) * c) >> 3;
     return c;
   }


My interest is in how it works in a sparse
network (ie tmotes 30 - 80 meters apart).
What is the link quality where a hop is
better than a straight connection of a poorer
LQI valued link, for a CC2420 radio.


francis