On the Performance of Amplify-and-Forward Relay Systems with Limited Feedback Beamforming

Erlin ZENG; Shihua ZHU; Xuewen LIAO; Zhimeng ZHONG; Zhenjie FENG

doi:10.1093/ietcom/e91-b.6.2053

Regular Section

On the Performance of Amplify-and-Forward Relay Systems with Limited Feedback Beamforming

Erlin ZENG, Shihua ZHU, Xuewen LIAO, Zhimeng ZHONG, Zhenjie FENG

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Keywords: amplify-and-forward, relaying, beamforming, limited feedback, outage probability

JOURNAL RESTRICTED ACCESS

2008 Volume E91.B Issue 6 Pages 2053-2057

DOI https://doi.org/10.1093/ietcom/e91-b.6.2053

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Abstract

Prior studies have shown that the performance of amplify-and-forward (AF) relay systems can be considerably improved by using multiple antennas and low complexity linear processing at the relay nodes. However, there is still a lack of performance analysis for the cases where the processing is based on limited feedback (LFB). Motivated by this, we derive the closed-form expression of the outage probability of AF relay systems with LFB beamforming in this letter. Simulation results are also provided to confirm the analytical studies.

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