Secrecy Outage Probability of Optimal Relay Selection for Secure AnF Cooperative Networks

For cooperative systems, in which an eavesdropper overhears source information through relays' transmission, an optimal relay selection (ORS) scheme has recently been proposed to improve the system secrecy performance. In this letter, we evaluate the secrecy outage probability (SOP) of the ORS...

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Bibliographic Details
Published in:IEEE communications letters 2015-12, Vol.19 (12), p.2086-2089
Main Authors: Nguyen, Binh V., Kiseon Kim
Format: Article
Language:English
Subjects:
Approximation
Approximation methods
Asymptotic properties
Communication system security
Computer simulation
Cooperative communications
Derivation
Mathematical analysis
Optimization
Outages
physical layer security
Rayleigh channels
Relay
relay selection
Relays
secrecy outage probability
Security
Wireless communication
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Summary:For cooperative systems, in which an eavesdropper overhears source information through relays' transmission, an optimal relay selection (ORS) scheme has recently been proposed to improve the system secrecy performance. In this letter, we evaluate the secrecy outage probability (SOP) of the ORS scheme with an amplify-and-forward system over independent and non-identically distributed Rayleigh fading. More specifically, we derive a tight approximation on the SOP. Thereafter, by analyzing asymptotic behaviour of the derived approximation, novel insights are revealed. The derivations are confirmed through Monte Carlo simulations.
ISSN:1089-7798
1558-2558
DOI:10.1109/LCOMM.2015.2486768