Comparative performance analysis of cooperative and multi dual‐hop relay networks using MGF approach,International Journal of Communication Systems

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Comparative performance analysis of cooperative and multi dual‐hop relay networks using MGF approach
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-07-30 , DOI: 10.1002/dac.4545
Muhammad Asshad _{1,

2} , Adnan Kavak ₁ , Kerem Küçük ₁ , Sajjad Ahmad Khan ₁

Affiliation

In this paper, we analyzed and compared the performance of cooperative diversity systems such as cooperative and multi dual‐hop networks with non‐regenerative relay nodes. The contributions of this study are twofolds. Firstly, analytical expressions of outage probability P_out and average symbol error rate ASER are derived using moment generating function (MGF) analysis of the received SNR with the assumption that the channel experiences Weibull fading and the best relay selection is used. Then, using the analytical results, comparative performance evaluation of cooperative and multi dual‐hop relay networks is done for varying number of relay nodes and different receive diversity schemes such as maximal ratio combining (MRC) and selection combining (SC). The results show that the cooperative relay network has better performance than a multi dual‐hop relay network in terms of P_out and ASER. The results also show that the multi dual‐hop network can achieve the same performance as the cooperative network with the requirement that it needs the deployment of three times more relay nodes.

中文翻译：

使用MGF方法的协作和多双跳中继网络的比较性能分析

在本文中，我们分析并比较了具有非再生中继节点的协作分集系统（如协作和多双跳网络）的性能。这项研究的贡献是双重的。首先，断电概率P _o_u_t的解析表达式假设信道经历了威布尔衰落并且使用了最佳的中继选择，并使用接收到的SNR的矩量生成函数（MGF）分析来得出平均误码率ASER和平均误码率ASER。然后，利用分析结果，对不同数量的中继节点和不同的接收分集方案（例如最大比率合并（MRC）和选择合并（SC））进行协作和多双跳中继网络的比较性能评估。结果表明，协作中继网络具有比双多跳中继网络方面更好的性能P _{Ø ü ŧ}和ASER。结果还表明，多双跳网络可以实现与协作网络相同的性能，并且需要部署三倍以上的中继节点。

更新日期：2020-07-30

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