文章基本信息

标题：SER-Based Relay Selection for Two-Way Relaying with Physical Layer Network Coding
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作者：Li, Dandan ; Xiong, Ke ; Qiu, Zhengding 等
期刊名称：ETRI Journal
印刷版ISSN：1225-6463
电子版ISSN：2233-7326
出版年度：2013
卷号：35
期号：2
页码：336-339
DOI：10.4218/etrij.13.0212.0211
语种：English
出版社：Electronics and Telecommunications Research Institute
摘要：To enhance the symbol error rate (SER) performance of the two-way relay channels with physical layer network coding, this letter proposes a relay selection scheme, in which the relay with the maximal minimum distance between different points in its constellation among all relays is selected to assist two-way transmissions. We give the closed-form expression of minimum distance for binary phase-shift keying and quadrature phase-shift keying. Additionally, we design a low-complexity method for higher-order modulations based on look-up tables. Simulation results show that the proposed scheme improves the SER performance for two-way relay networks.
关键词：Two-way relay;relay selection;SER;minimum distance;physical layer network coding (PNC)