Research on Power Allocation in Multiple Relay Cooperation Communication System

According to the importance of power distribution,the power distribution in multiple relay system is studied and the optimal power allocation scheme based on the maximal equivalent SNR is proposed.The simulation results show that the increasing of the number of partners has a positive effect on equivalent SNR,but not improve without limit.The performance of mixed forwarding multi-relay cooperative communication system with optimal power allocation scheme is better than that with equal power allocation scheme.