Cooperative amplify-and-forward beamforming with multi-antenna source and relays
Liang YW, Schober R (2009)
Publication Type: Conference contribution
Publication year: 2009
Pages Range: 277-280
Conference Proceedings Title: CAMSAP 2009 - 2009 3rd IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing
Event location: Aruba
ISBN: 9781424451807
DOI: 10.1109/CAMSAP.2009.5413281
Abstract
In this paper, we propose a beamforming (BF) scheme for cooperative networks with multiple antennas at the source node and the amplify-and-forward (AF) relay nodes. Adopting the instantaneous signal-to-noise ratio (SNR) as optimality criterion, we obtain closed-form expressions for the maximum SNR and the optimal AF-BF matrices at the relays for a given BF vector at the source. Furthermore, we propose a numerical algorithm to find a locally optimal BF vector at the source. Simulation results for Rayleigh fading show that AF-BF with multi-antenna relays can achieve significant performance gains compared to direct transmission without relaying. © 2009 IEEE.
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APA:
Liang, Y.W., & Schober, R. (2009). Cooperative amplify-and-forward beamforming with multi-antenna source and relays. In CAMSAP 2009 - 2009 3rd IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (pp. 277-280). Aruba, AN.
MLA:
Liang, Yang Wen, and Robert Schober. "Cooperative amplify-and-forward beamforming with multi-antenna source and relays." Proceedings of the 2009 3rd IEEE International Workshop on Computational Advances in Multi-Sensor Adaptive Processing, CAMSAP 2009, Aruba 2009. 277-280.
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