In this paper, the closed‐form expressions for outage probability, channel capacity, and average symbol error probability are derived for amplify‐and‐forward multihop relay network. Based on approximation of multihop relay by dual‐hop relay systems, the analytical expressions are obtained for the case when maximal ratio combining technique is employed at each relay while destination node uses selection combining technique. The impact of system and channel parameters on the system performances is investigated, and numerical results are graphically presented. The derived analytical expressions are verified by numerical simulation.

中文翻译：

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近似双跳中继网络的协作多跳中继网络系统性能分析

在本文中，得出了放大转发多跳中继网络的中断概率，信道容量和平均符号错误概率的闭式表达式。基于双跳中继系统对多跳中继的逼近，得出了针对每个中继采用最大比率合并技术而目的节点使用选择合并技术时的解析表达式。研究了系统和通道参数对系统性能的影响，并以图形方式给出了数值结果。通过数值模拟验证了推导的解析表达式。