Abstract | ||
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This paper focuses on the end-to-end signal-to-noise ratio (SNR) maximization for full-duplex massive multiple-input multiple-output (MIMO) amplify-and-forward (AF) relay systems in the presence of direct link. First, we rigorously prove the asymptotic optimality of the maximum-ratio combining/maximumratio transmission (MRC/MRT) relaying strategy by taking into account the massive MIMO setup. Then, concerning the equivalent optimization problem with respect to source beamformer, we advocate a two-tier iterative algorithm relying on bi-section search, which guarantees a globally optimal solution. As a byproduct of this approach, we show that the optimal source beamformer has an interesting generalized channel matching structure associated with both source-relay and source-destination links. In addition to the optimal design, we devise a high SNR approximation-based suboptimal scheme, which admits a closed-form solution. Simulation results verify the advantage of our full-duplex relaying designs, and also demonstrate a negligible performance gap between the proposed optimal and suboptimal methods. |
Year | DOI | Venue |
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2016 | 10.1109/ACCESS.2016.2635677 | IEEE ACCESS |
Keywords | Field | DocType |
Full-duplex amplify-and-forward (AF) relaying,massive multiple-input multiple-output (MIMO),direct link,signal-to-noise ratio (SNR) maximization | Topology,3G MIMO,Computer science,Control theory,Iterative method,Signal-to-noise ratio,MIMO,Optimal design,Optimization problem,Maximization,Distributed computing,Duplex (telecommunications) | Journal |
Volume | ISSN | Citations |
4 | 2169-3536 | 0 |
PageRank | References | Authors |
0.34 | 0 | 3 |
Name | Order | Citations | PageRank |
---|---|---|---|
Hong Shen | 1 | 96 | 8.53 |
Wei Xu | 2 | 854 | 63.23 |
Chunming Zhao | 3 | 671 | 64.30 |