标题：Symbol Error Rate Analysis for Cooperative Diversity networks in Raighlay Channels
作者：Li Jun; He Bo; Lin Fei; Wang Xiaofang; Li Qinghua
作者机构：[Li Jun; Lin Fei; Wang Xiaofang; Li Qinghua] Shandong Inst Light Ind, SDILI, Sch Elect Informat & Control Engn, Jinan 250353, Peoples R China.; [Li 更多
会议名称：6th International Conference on Wireless Communications, Networking and Mobile Computing (WICOM)
会议日期：SEP 23-25, 2010
来源：2010 6TH INTERNATIONAL CONFERENCE ON WIRELESS COMMUNICATIONS NETWORKING AND MOBILE COMPUTING (WICOM)
关键词：Symbol Error Rate (SER); amplify-and-forward; SER Low Bound (LB); Signal; to Noise Ratio (SNR); Cooperation communication
摘要：In this paper, the Symbol Error Rate (SER) performance formulation which suited to multi-node amplify-and-forward cooperative communication M-PSK constellation systems with the mean channel gains is derived. Firstly, the closed-form theory symbol error rate formulation with M-PSK modulation is derived. Then, a Low Bound (LB) is established to show the asymptotic performance of the cooperation protocol which tightens the theory SER under the both low and high Signal to Noise Ratio (SNR) conditions. Thirdly, the optimal power allocation algorithm for multi-node cooperative communication systems which minimizes the SER performance based on the Low Bound (LB) is formulated. SER comparison between the proposed approximate optimal power allocation method and the traditional Equal Power Allocation (EPA) method, the SER performance for the approximate optimal power allocation is better than the EPA's, especially under the channel conditions which the relay nodes are near the middle locations between the source and destination node or near the destination node.