MAC Layer Channel Quality Measurement in 802.11
David W. Malone, Peter M. Clifford, Douglas J. Leith · IEEE Communications Letters · 2007
We present a novel technique for accurately estimating the proportions of packet losses arising from collisions and from other sources of loss (channel noise, hidden nodes etc). Our approach is robust, makes use of local station-level measurements and requires no message passing. The required measurements are available in standard hardware as they are required for CSMA/CA operation. No channel quality probing is required which ensures energy efficiency