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

Coskun, Adem and Candan, Cagatay (2011) Transmit precoding for flat-fading MIMO multiuser systems with maximum ratio combining receivers. IEEE Transactions on Vehicular Technology, 60 (2). pp. 710-716. ISSN 0018-9545

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Official URL: http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumb...


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.

Item Type:Article
Research Community:University of Westminster > Electronics and Computer Science, School of
ID Code:11499
Deposited On:08 Nov 2012 16:06
Last Modified:11 Jun 2013 13:26

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