中文摘要：

针对全双工（FD）放大转发中继系统中自干扰造成的符号错误率（SER）性能门限问题,提出了FD放大转发中继系统功率分配优化方案。在考虑自干扰存在的环境下,对系统模型进行了数学分析,推导了中断概率和SER的表达式,制定了基于最小SER准则的优化问题,求出了次优的功率分配比。利用Matlab工具对FD放大转发中继系统SER进行了仿真,证明了该功率分配优化方案的有效性。

英文摘要：

Aiming at the SER performance threshold problem caused by self-interference in FD amplify-and-forward relay system,the optimization scheme of power allocation for FD amplify-and-forward system is proposed. Considering the existence of self-interfer-ence,the system mode] is analyzed mathematically, and the outage probability and the SER expressions are derived. The optimizatiouproblem based on minimum SER criterion is formulated,and the suboptimal power allocation ratio is obtained. The SER performance ofFD amplify-and-forward relay system is simulated with Matlab tool, and the availability of the proposed optimization scheme of powerallocation is proved.