Optimal power allocation for amplify-and-forward cooperative relaying system
Jinsha Yuan · Journal of North China Electric Power University · 2009
For wireless communication system with single antenna nodes,cooperative relaying technique can improve system performance efficiently.Optimal power allocation for two hops amplify-and-forward cooperative relaying communication systems in Rayleigh fading channel was studied.The outage probability formula of the cooperative relaying system under high signal-to-noise ratio was derived to investigate the power allocation under different channel condition and the equivalence of optimal power allocation to minimize the SER and outage probability respectively was proved,providing a theoretical basis for the extended application of related OPA conclusions.Simulation result presents the reliability and efficiency of the OPA based on the derived formula.