Outage analysis of coded cooperation with multiple relays and Nakagami-m fading

Abstract

In this paper we analyze the outage behavior of a coded cooperative system for independent, flat, Nakagami-m fading channels and derive a closed form expression for outage probability. We further find the optimum number of relays with respect to outage probability for different channel conditions and threshold power. We also obtain graphically the minimum cooperation ratio required, and hence minimum number of bits to be transmitted in first phase transmission, with respect to channel statistics and threshold power.