Orthogonal projection based asymmetric multi‐way relaying with antenna subset selection. Issue 13 (1st June 2014)

• Record Type: Journal Article
• Authors: Li, Wei; Li, Guobing; Zhu, Shihua; Hua, Kun
• Is Part Of: Electronics letters. Volume 50:Issue 13(2014)
• Page Start: 914
• Page End: 916
• Publication Date: 2014-06-01
• Subjects: network coding -- wireless sensor networks -- relay networks (telecommunication) -- computational complexity -- minimax techniques -- diversity reception -- antenna arrays; orthogonal projection -- antenna subset selection -- asymmetric multiway relay communication -- analogue network coding -- wireless sensor network -- sink node -- multiple user nodes -- relay station -- complexity structures -- relay antennas -- paired throughput -- max–min criterion -- computational complexity -- optimal relay antenna subset -- diversity gain; Electronics -- Periodicals; 621.381
• DOI: 10.1049/el.2014.1032
• Languages: English
• ISSNs: 0013-5194

Abstract

Abstract : An asymmetric multi‐way relay communication scheme using orthogonal projection and analogue network coding is proposed. The scheme is designed for the wireless sensor network, where one sink node (SN) exchanges information with multiple user nodes via a relay station and both the SN and user nodes have low complexity structures. It has been observed that the minimal number of the relay antennas can be smaller than that of the total data streams. Moreover, when the number of the relay antennas is larger than the minimum, a paired throughput based max–min criterion with low computational complexity is developed to select the optimal relay antenna subset and guarantee full diversity gain. The numerical results demonstrate the high performance of the proposed communication scheme and antenna subset selection criterion.