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Exact analysis of the multihop multibranch hybrid AF/DF relaying networks
International Journal of Communication Systems ( IF 1.7 ) Pub Date : 2020-08-05 , DOI: 10.1002/dac.4549
Amir H. Forghani 1 , Muath Al Hassan 2 , Ismail Ben Mabrouk 2 , Amber Sultan 3 , Muhammad Babar Rasheed 4
Affiliation  

In this paper, the exact analysis of a multihop multibranch (MHMB) relaying network is investigated wherein each relay can operate in amplify‐and‐forward (AF) or decode‐and‐forward (DF) modes depending upon the decoding result of its received signal. If a relay decodes the received signal correctly, it works in DF mode; otherwise, the relay operates in AF mode. Therefore, we name such relaying network as hybrid amplify‐and‐forward and decode‐and‐forward (hybrid AF/DF) relaying network. We first investigate the signal transmission from source to destination node via n number of relays in a hybrid AF/DF MHMB mode. Then, we obtained the statistical features and analyze the end‐to‐end signal‐to‐noise ratio (SNR). Finally, a comprehensive performance analysis is conducted by using maximal ratio combining (MRC) scheme at the destination node. For comparison, we also obtained the results using selection combining (SC) scheme at the destination node. To the best of our knowledge, very few works in the literature have considered a general system model of MHMB relaying network wherein each relay can operate in AF or DF modes, that is, a hybrid AF/DF relaying network. Accordingly, the analysis of our system model is not only novel and exact, but also is comprehensive and can be employed in the future works.

中文翻译:

多跳多分支混合AF / DF中继网络的精确分析

本文研究了多跳多分支(MHMB)中继网络的精确分析,其中每个中继可以根据其接收到的解码结果在放大转发(AF)或解码转发(DF)模式下运行信号。如果继电器正确解码了接收到的信号,则它将在DF模式下工作;否则,继电器将在AF模式下运行。因此,我们将这种中继网络称为混合放大转发和解码转发(混合AF / DF)中继网络。我们首先研究通过n从源到目标节点的信号传输AF / DF MHMB混合模式下的继电器数量。然后,我们获得了统计特征并分析了端到端的信噪比(SNR)。最后,在目标节点上使用最大比率合并(MRC)方案进行了全面的性能分析。为了进行比较,我们还在目标节点上使用选择合并(SC)方案获得了结果。据我们所知,文献中很少有作品考虑过MHMB中继网络的通用系统模型,其中每个中继都可以AF或DF模式工作,即AF / DF混合中继网络。因此,对我们的系统模型的分析不仅新颖,准确,而且很全面,可以在以后的工作中使用。
更新日期:2020-08-05
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