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首页> 外文期刊>International Journal of Electrical and Computer Engineering >On the performance of energy harvesting AF partial relay selection with TAS and outdated channel state information over identical channels
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On the performance of energy harvesting AF partial relay selection with TAS and outdated channel state information over identical channels

机译:在相同频道上用TAS和过时的信道状态信息的能量收集eF偏移选择的性能

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摘要

Energy scarcity has been known to be one of the most noticeable challenges in wireless communication system. In this paper, the performance of an energy harvesting based partial relay selection (PRS) cooperative system with transmit antenna selection (TAS) and outdated channel state information (CSI) is investigated. The system dual-hops links are assumed to follow Rayleigh distribution and the relay selection is based on outdated CSI of the first link. To realize the benefit of multiple antenna, the amplified-and-forward (AF) relay nodes then employs the TAS technique for signal transmission and signal reception is achieved at the destination through maximum ratio combining (MRC) scheme. Thus, the closed-form expression for the system equivalent end-to-end cumulative distribution function (CDF) is derived. Based on this, the analytical closed-form expressions for the outage probability, average bit error rate, and throughput for the delay-limited transmission mode are then obtained. The results illustrated that the energy harvesting time, relay distance, channel correlation coefficient, the number of relay transmit antennas and destination received antenna have significant effect on the system performance. Monte-carol simulation is employed to validate the accuracy of the derived expressions.
机译:已知能源稀缺是无线通信系统中最引人注目的挑战之一。在本文中,研究了具有发射天线选择(TAS)和过时的信道状态信息(CSI)的能量收集的基于中继选择(PRS)协作系统的性能。假设系统双跳链接跟随Rayleigh分布,继电器选择基于第一个链路的过时的CSI。为了实现多天线的益处,放大和向前(AF)中继节点然后采用用于信号传输的TAS技术,并且通过最大比率(MRC)方案在目的地处实现信号接收。因此,导出系统等效端到端累积分布函数(CDF)的闭合表达式。基于此,然后获得用于停电概率,平均误码率和延迟限制传输模式的吞吐量的分析闭合表达式。结果说明了能量收集时间,继电距离,信道相关系数,中继传输天线和目的地接收天线的数量对系统性能具有显着影响。 Monte-Carol模拟用于验证衍生表达式的准确性。

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