Outage Probability of Switch and Stay Combining in Two-Way Amplify-and-Forward Relay Networks

Document type: Journal Articles
Article type: Original article
Peer reviewed: Yes
Author(s): Mao Yan, Qingchun Chen, Xianfu Lei, Quang Trung Duong, Pingzhi Fan
Title: Outage Probability of Switch and Stay Combining in Two-Way Amplify-and-Forward Relay Networks
Journal: IEEE Wireless Communications Letters
Year: 2012
Volume: 1
Issue: 4
Pagination: 296-299
ISSN: 2162-2337
Publisher: IEEE
URI/DOI: 10.1109/WCL.2012.042512.110243
Organization: Blekinge Institute of Technology
Department: School of Computing (Sektionen för datavetenskap och kommunikation)
School of Computing S-371 79 Karlskrona
+46 455 38 50 00
http://www.bth.se/com
Authors e-mail: quang.trung.duong@bth.se
Language: English
Abstract: In this letter, a switch-and-stay combining (SSC) in two-way amplify-and-forward (AF) networks with two relays is proposed and analyzed. In particular, the closed-form expression of the outage probability for the proposed scheme over Rayleigh fading channels is derived. Asymptotic performance analysis for high signal-to-noise ratio (SNR) is also presented. It is shown that the SSC scheme is capable of realizing full diversity order, and even achieving the same outage performance as the best-relay selection (BRS), when reasonable switching thresholds are set. Simulations are provided to corroborate the theoretical analysis.
Subject: Telecommunications\General
Keywords: Two-way relay, switch-and-stay combining
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