Finite Rate Feedback Design for Multiple Transmit Antennas

Date
2002-10-20
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Abstract

Many practical systems employ a feedback channel to convey the channel state information to the transmitter.The capacity of the feedback channels is usually limited to a few bits per frame. We design feedback based transmission schemes for multiple transmit antenna systems in this work. The important contribution of this work is a design criterion for the construction of optimal beamformers with a constraint on the rate of the feedback channel. Beamforming schemes also lead to reduced complexity compared to space time coding schemes at the cost of a few bits of feedback.

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Conference paper
Keywords
Feedback, MIMO, Beamforming, Transmit diversity, Outage probability
Citation

K. K. Mukkavilli, A. Sabharwal and B. Aazhang, "Finite Rate Feedback Design for Multiple Transmit Antennas," 2002.

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