Title :
Secrecy Outage Probability of Optimal Relay Selection for Secure AnF Cooperative Networks
Author :
Nguyen, Binh V. ; Kiseon Kim
Author_Institution :
Dept. of Nanobio Mater. & Electron., Gwangju Inst. of Sci. & Technol., Gwangju, South Korea
Abstract :
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.
Keywords :
Monte Carlo methods; Rayleigh channels; amplify and forward communication; cooperative communication; relay networks (telecommunication); telecommunication network reliability; telecommunication security; Monte Carlo simulation; ORS scheme; SOP; amplify-and-forward system; independent distributed Rayleigh fading; nonidentical distributed Rayleigh fading; optimal relay selection scheme; relay transmission; secrecy outage probability; secure AnF cooperative network; Approximation methods; Communication system security; Rayleigh channels; Relays; Security; Wireless communication; Cooperative communications; physical layer security; relay selection; secrecy outage probability;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2015.2486768
