Research Article
Trade-off between Feedback Load for the Channel State Information and System Performance in MIMO Communications
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@INPROCEEDINGS{10.1007/978-3-642-16644-0_45, author={Daniel Sacrist\^{a}n-Murga and Antonio Pascual-Iserte}, title={Trade-off between Feedback Load for the Channel State Information and System Performance in MIMO Communications}, proceedings={Mobile Lightweight Wireless Systems. Second International ICST Conference, MOBILIGHT 2010, Barcelona, Spain, May 10-12, 2010, Revised Selected Papers}, proceedings_a={MOBILIGHT}, year={2012}, month={10}, keywords={MIMO systems feedback communication quantization limited feedback multiuser systems}, doi={10.1007/978-3-642-16644-0_45} }- Daniel Sacristán-Murga
Antonio Pascual-Iserte
Year: 2012
Trade-off between Feedback Load for the Channel State Information and System Performance in MIMO Communications
MOBILIGHT
Springer
DOI: 10.1007/978-3-642-16644-0_45
Abstract
The performance of multiple-input multiple-output (MIMO) communication systems is greatly increased by having channel state information (CSI) at the transmitter. In systems with no channel reciprocity, a limited feedback link is used to send the CSI from the receiver to the transmitter. However, the resources for the feedback link come at the expense of resources from the communications link. This paper studies the trade-off between accurate feedback and system performance for systems using different feedback techniques. The optimum feedback load is computed for different transmission schemes including time-division duplex (TDD) and frequency-division duplexing (FDD).
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