This paper analyzes the performance of decode-and-forward (DF)-based multihop relaying communication systems over α-η-μ fading channels. Particularly, we provide expressions for the probability density function, cumulative distribution function, and moment generating function of the end-to-end signal-tonoise ratio for the DF-based multihop systems. Accordingly, closed-form expressions are derived for the end-to-end outage probability (OP), Ergodic capacity, and average symbol error rate (ASER) are provided. The provided expressions are very important in predicting the channel/link quality in the network such that practical multihop communication protocols (channel assignment, multihop path selection, power control, etc.) can be effectively designed. The derived expressions are numerically validated against well-known fading channel models (Rayleigh and η-μ) by setting the appropriate α, η, and μ values. We evaluate the effects of the fading parameters and number of hops on the system performance. Results indicate that a DF-based multihop technique can significantly enhance the end-to-end ASER and OP performance.

中文翻译：

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在多跳无线系统中使用解码转发中继进行端到端性能分析 $ \ alpha $–$ \ eta $–$ \ mu $ 衰落频道

本文分析了在α-η-μ衰落信道上基于解码转发（DF）的多跳中继通信系统的性能。尤其是，我们提供了基于DF的多跳系统的端到端信噪比的概率密度函数，累积分布函数和矩生成函数的表达式。因此，导出了端到端中断概率（OP），遍历容量和平均符号错误率（ASER）的闭式表达式。提供的表达式对于预测网络中的信道/链路质量非常重要，因此可以有效地设计实用的多跳通信协议（信道分配，多跳路径选择，功率控制等）。通过设置适当的α，η和μ值，可以针对著名的衰落信道模型（瑞利和η-μ）在数值上验证导出的表达式。我们评估衰落参数和跳数对系统性能的影响。结果表明，基于DF的多跳技术可以显着提高端到端的ASER和OP性能。