Title :
Outage Probability of Switch and Stay Combining in Two-Way Amplify-and-Forward Relay Networks
Author :
Yan, Mao ; Chen, Qingchun ; Lei, Xianfu ; Duong, Trung Q. ; Fan, Pingzhi
Author_Institution :
Southwest Jiaotong Univ., Chengdu, China
fDate :
8/1/2012 12:00:00 AM
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.
Keywords :
Rayleigh channels; amplify and forward communication; probability; Rayleigh fading channels; asymptotic performance analysis; best-relay selection; closed-form expression; signal-to-noise ratio; switch-and-stay combining outage probability; two-way amplify-and-forward relay networks; Approximation methods; Diversity methods; Diversity reception; Relays; Signal to noise ratio; Switches; Wireless communication; Two-way relay; amplify-and-forward (AF); relay networks; switch-and-stay combining (SSC);
Journal_Title :
Wireless Communications Letters, IEEE
DOI :
10.1109/WCL.2012.042512.110243
