期刊
IEEE WIRELESS COMMUNICATIONS LETTERS
卷 1, 期 4, 页码 296-299出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/WCL.2012.042512.110243
关键词
Two-way relay; switch-and-stay combining (SSC); relay networks; amplify-and-forward (AF)
资金
- National Basic Research Program of China (973 Program) [2012CB316100]
- NSFC [60872013/61032002/61002015]
- Open Research Fund of the State Key Laboratory of Integrated Services Networks [ISN11-04]
- 111 project [111-2-14]
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.
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