Energy efficiency of IDF MIMO relay system with antenna selection under a holistic power model

2016 Sixth International Conference on Information Science and Technology (ICIST) Pub Date : 2016-05-06 DOI:10.1109/ICIST.2016.7483449

Benli Li, Li Chen, Guo Wei

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引用次数: 1

Abstract

We consider a cooperative incremental decode-and-forward (IDF) MIMO relay system where the relay operates with automatic repeat request (ARQ) protocol. The relay forwards the received signal from the source to the destination only when receives negative acknowledgement (NACK) from the destination. In this paper, we focus on relay antenna selection (AS) issue. An analytical framework for studying the energy efficiency trade-off of cooperation in relay system is presented, in which the power consumed in the receiving and processing circuitry is taken into consideration. Closed-form outage probability and energy efficiency expressions for different relay AS schemes are derived. The effects of relay AS schemes and relative position between destination, source and to relay on energy efficiency are investigated in this work. The numerical results reveal that, SSC outperforms MRC when the destination is relatively faraway from the source or relay, which has practical value for deciding which relay AS scheme to use by setting previously calculated thresholds.

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整体功率模型下天线选择的IDF MIMO中继系统能量效率

我们考虑了一个合作增量解码转发(IDF) MIMO中继系统，其中中继与自动重复请求(ARQ)协议一起工作。只有当接收到目的地的否定确认(NACK)时，中继才会将从源接收到的信号转发到目的地。本文主要研究中继天线的选择问题。提出了一种考虑接收和处理电路功耗的继电系统协同节能权衡分析框架。推导了不同继电器AS方案的闭式停电概率和能效表达式。本文研究了中继AS方案和目的地、源和中继之间的相对位置对能源效率的影响。数值结果表明，当目标距离源或中继较远时，SSC优于MRC，这对于通过设置先前计算的阈值来决定使用哪种中继AS方案具有实用价值。

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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来源期刊

2016 Sixth International Conference on Information Science and Technology (ICIST)

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