Performance Comparisons of Cooperative Multi-relay System with/without Opportunistic Transmission in Rayleigh Fading Channel
Namsoo Peter Kim · The Journal of the Institute of Webcasting, Internet and Telecommunication · 2008
The performance of power constrained cooperative multi-relay system with/without opportunistic transmission is considered in Rayleigh fading. The three power allocation methods are considered to maximize the system performance when the total network power is limited. It is analyzed that the opportunistic power allocation strategy has the best performance enhancement compared to the other power allocation strategies. The opportunistic relays increases with the total network power, which induce the higher diversity order of the opportunistic cooperative diversity, consequently improves the end-to-end outage probability.