[net2-wg] link estimator interface

[Joe Polastre]

> Some data a student here has been collecting suggests that LQI doesn't
> behave like this at all. I've attached a plot of LQI vs PRR.

That's why you need a correlation factor, C, based on actual measured
packet error rate.  LQI is a quick start mechanism that supplements
the long term packet error rate.

This is documented in numerous places (cough, Zigbee specification,
cough), but for some reason no one has chosen to implement it.  Sigh.

-Joe