Simplified relay antenna selection with source beamforming for MIMO two-way relaying networks
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- 作者：Jing Li ; Yu Zheng ; Jianhua Ge ; Chensi Zhang…
- 关键词：two ; way relaying ; relay antenna selection ; beamforming ; amplify ; and ; forward ; diversity
- 刊名：SCIENCE CHINA Information Sciences
- 出版年：2017
- 出版时间：February 2017
- 年：2017
- 卷：60
- 期：2
- 全文大小：283 KB
- 刊物类别：Computer Science
- 刊物主题：Chinese Library of Science
Information Systems and Communication Service - 出版者：Science China Press, co-published with Springer
- ISSN：1869-1919
- 卷排序：60
文摘
A simplified relay antenna selection with source beamforming (RAS-BF) scheme is advocated for multiple-input multiple-output (MIMO) two-way relaying networks (TWRNs) employing amplify-and-forward (AF) protocol, which does not require channel estimation at the relay node and the optimal relay antenna can be simply determined by comparing the minimum received pilot signaling powers pertaining to each antenna. The theoretical analysis of system outage probability and average symbol error rate (SER) shows that full diversity order can also be achieved by the simplified scheme. Simulation results are provided to verify our theoretical results and further illustrate that the simplified scheme outperforms the outage-optimal counterpart in the presence of channel state information (CSI) imperfections.