Mobility

Limited Feedback Beamforming Over Temporally-Correlated Channels

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Executive Summary

Feedback of quantized Channel State Information (CSI), called limited feedback, enables transmit beamforming in Multiple-Input-Multiple-Output (MIMO) wireless systems with a small amount of overhead. Due to its efficiency, beamforming with limited feedback has been adopted in several wireless communication standards. Prior work on limited feedback commonly adopts the block fading channel model where temporal correlation in wireless channels is neglected. In this paper, the authors consider temporally correlated channels and design single-user transmit beamforming with limited feedback.

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