Outage Performance of Opportunistic Two-Way Amplify-and-Forward Relaying with Outdated Channel State Information

In this paper, we study the outage performance of an amplify-and-forward (AF)-based two-way relaying (TWR) system with multiple relays where a single relay selection is performed based on outdated channel state information (CSI). Specifically, we propose a single relay selection scheme in AF-based T...

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Bibliographic Details
Published in:IEEE transactions on communications 2013-09, Vol.61 (9), p.3635-3643
Main Authors: Kyu-Sung Hwang, MinChul Ju, Alouini, Mohamed-Slim
Format: Article
Language:English
Subjects:
Access methods and protocols, osi model
Amplification
amplify-and-forward
Applied sciences
Approximation methods
Asymmetry
Asymptotic properties
Channel capacity
Channel state information
Channels
Detection, estimation, filtering, equalization, prediction
Exact sciences and technology
Information, signal and communications theory
Mathematical analysis
outage probability
Outages
outdated channel state information
Probability
relay selection
Relaying
Relays
Signal and communications theory
Signal to noise ratio
Signal, noise
Statistical analysis
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Teleprocessing networks. Isdn
Transmission and modulation (techniques and equipments)
Two-way relaying
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Summary:In this paper, we study the outage performance of an amplify-and-forward (AF)-based two-way relaying (TWR) system with multiple relays where a single relay selection is performed based on outdated channel state information (CSI). Specifically, we propose a single relay selection scheme in AF-based TWR system under outdated CSI conditions. With this policy, we offer a statistical analysis of the signal-to-noise ratio per hop and analyze the outage probability with asymmetric outage thresholds based on CSI-assisted AF protocol. Additionally, we provide the exact and asymptotic expressions based on the provided statistical/joint statistical analyses of a dual-hop AF transmission. Finally, we verify our analytical results with some selected computer-based simulation results.
ISSN:0090-6778
1558-0857
DOI:10.1109/TCOMM.2013.071213.120826