Transmit precoding for flat-fading MIMO multiuser systems with maximum ratio combining receivers

Coskun, A. and Candan, C. 2011. Transmit precoding for flat-fading MIMO multiuser systems with maximum ratio combining receivers. IEEE Transactions on Vehicular Technology. 60 (2), pp. 710-716.

TitleTransmit precoding for flat-fading MIMO multiuser systems with maximum ratio combining receivers
AuthorsCoskun, A. and Candan, C.
Abstract

We examine the application of transmit precoding in multiuser multi-input-multi-output (MIMO) communication systems with maximum ratio combining (MRC) receivers. In many multiuser applications, the maximum-likelihood or minimum mean-square error (MMSE) receivers can be prohibitive to implement due to their high implementation complexity. We examine the performance of the system with simple MRC receivers and carefully selected precoders, which are designed to compensate the lack of high-complexity receivers, at the transmitter side. We examine the sum MSE minimization and signal-to-interference-plus-noise ratio (SINR) balancing frameworks for the selection of precoders. The performance of two frameworks with MRC receivers are compared between themselves as well as with their counterparts implementing MMSE receivers. It has been observed that the SINR balancing framework with simple MRC receivers has little performance loss in comparison with the MMSE receivers with a proper selection of precoders.

JournalIEEE Transactions on Vehicular Technology
Journal citation60 (2), pp. 710-716
ISSN0018-9545
YearFeb 2011
PublisherIEEE Vehicular Technology Society
Digital Object Identifier (DOI)doi:10.1109/TVT.2010.2096484
Web address (URL)http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=5657271
Publication dates
PublishedFeb 2011

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