κ-μ衰减信道中的能量收集中继网络性能分析

IF 2.5 4区 计算机科学 Q3 TELECOMMUNICATIONS Transactions on Emerging Telecommunications Technologies Pub Date : 2024-04-15 DOI:10.1002/ett.4976
Raghwendra K. Singh, Soumendu Das, Dharmendra Dixit, Nagendra Kumar
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引用次数: 0

摘要

本文研究了在广义衰落信道上运行的支持能量收集(EH)的多中继网络的性能。我们的方法包括利用部分中继选择策略,并采用放大和转发中继协议,从射频信号中获得高效的能量收集。此外,我们还在接收器上集成了一个选择组合方案,以组合直接信号和中继路径信号。在研究中,我们首先获得了所研究系统的累积分布函数(CDF)的精确闭式表达式。随后,我们利用得出的 CDF 表达式推导出中断概率 (OP) 和时刻生成函数 (MGF) 的表达式。此外,借助基于 CDF 的方法,我们还推导出了相干正交振幅调制 (QAM) 方案(包括矩形 QAM (RQAM) 和六角 QAM (HQAM))的平均符号错误率 (ASER) 的闭式表达式。我们还利用推导出的 MGF 表达式,分析了非相干频移键控(NCFSK)的 ASER 表达式。为了深入了解启用 EH 的多中继网络的性能,我们评估了 OP 的渐近表达式。结果表明了系统行为如何受到时间切换比、信道衰落成分、中继数量和节点间距离等各种因素的影响。为了证实分析结果的准确性,我们进行了蒙特卡罗模拟。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

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Performance analysis of energy harvesting-enabled relay networks in κ-μ fading channels

In this paper, we investigate the performance of an energy harvesting (EH)-enabled multiple relay network operating over generalized - fading channels. Our approach involves utilizing a partial relay selection strategy and employing an amplify and forward relay protocol for efficient EH from RF signals. Additionally, we integrate a selection combining scheme at the receiver to combine both direct and relaying path signals. In our research, we first obtain the exact closed-form expression of the cumulative distribution function (CDF) for the system under investigation. Subsequently, we derive expressions for the outage probability (OP) and the moment generating function (MGF) using the derived CDF expression. Furthermore, with the assistance of a CDF-based approach, we derive closed-form expressions for the average symbol error rate (ASER) for coherent quadrature amplitude modulation (QAM) schemes, including rectangular QAM (RQAM) and hexagonal QAM (HQAM). We also analyze the ASER expression for non-coherent frequency shift keying (NCFSK), leveraging the derived MGF expression. To gain valuable insights into the performance of EH-enabled multiple relay networks, we assess the asymptotic expression of the OP. The outcomes indicate how the behavior of the system is affected by various factors such as time switching ratio, channel fading components, number of relays, and the distance between nodes. To corroborate the accuracy of the analytical findings, Monte Carlo simulations are executed.

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来源期刊
CiteScore
8.90
自引率
13.90%
发文量
249
期刊介绍: ransactions on Emerging Telecommunications Technologies (ETT), formerly known as European Transactions on Telecommunications (ETT), has the following aims: - to attract cutting-edge publications from leading researchers and research groups around the world - to become a highly cited source of timely research findings in emerging fields of telecommunications - to limit revision and publication cycles to a few months and thus significantly increase attractiveness to publish - to become the leading journal for publishing the latest developments in telecommunications
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