• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Secrecy Analysis of Amplify-and-Forward Relay Networks with Beamforming


Abstract

This paper analyzes the secrecy performance of an amplify-and-forward (AF) relay network, where a multi-antenna eavesdropper attempts to overhear the transmitted message from a multi-antenna source to a multi-antenna destination with a single antenna relay. Firstly, we derive the approximate analytical expressions for the secrecy outage probability (SOP) and average secrecy rate (ASR) of the relay network. Then, asymptotic expressions of SOP and ASR at high main-to-eavesdropper ratio (MER) are also provided to reveal the diversity gain of the secure communication. Finally, numerical results are given to verify the theoretical analysis and show the effect of the number of antennas in the considered relay network.


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Cite this article

[IEEE Style]
Pu Chen, Jian Ouyang and Wei-Ping Zhu, "Secrecy Analysis of Amplify-and-Forward Relay Networks with Beamforming," KSII Transactions on Internet and Information Systems, vol. 10, no. 10, pp. 5049-5062, 2016. DOI: 10.3837/tiis.2016.10.022

[ACM Style]
Chen, P., Ouyang, J., and Zhu, W. 2016. Secrecy Analysis of Amplify-and-Forward Relay Networks with Beamforming. KSII Transactions on Internet and Information Systems, 10, 10, (2016), 5049-5062. DOI: 10.3837/tiis.2016.10.022