Effective Power Region for Opportunistic Single Relay Selection in Decode-and-Forward Relaying

Abstract

In opportunistic relaying scheme, power level has an effect on the number of potential relays, which is related with the performance like as average signal-to-noise ratio (SNR). We introduce effective power region out of which relays are efficient to be selected. Simulation results show that the power increasing hardly results in finding a better relay and consequently fails to improve the performance after a certain power level by which the potential best relay is included.