Statistical Precoding for MIMO Systems With Channel Estimation Errors

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Statistical Precoding for MIMO Systems With Channel Estimation Errors
Title:
Statistical Precoding for MIMO Systems With Channel Estimation Errors
Journal Title:
IEEE Wireless Communications Letters
Keywords:
Publication Date:
07 November 2014
Citation:
B. S. Thian, H. D. Nguyen and S. Sun, "Statistical Precoding for MIMO Systems With Channel Estimation Errors," in IEEE Wireless Communications Letters, vol. 4, no. 1, pp. 62-65, Feb. 2015. doi: 10.1109/LWC.2014.2368570
Abstract:
Obtaining accurate instantaneous channel state information (CSI) is challenging for multiple-input–multiple-output (MIMO) systems, particularly if the channel fluctuates rapidly. A more practical assumption is statistical CSI as the channel statistics are likely to remain unchanged for a longer period. In this letter, we propose a precoder design, using only statistical CSI, to minimize error probability for practical MIMO systems with channel estimation errors. Our proposed precoder design is shown to achieve a significant improvement in error performance when compared with other precoding schemes in literature. For example, for a real 4 × 4 MIMO system with BPSK modulation and at a codeword error rate of 10−3, coding gains of up to 12 dB can be achieved
License type:
PublisherCopyrights
Funding Info:
Description:
(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other users, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or redistribution to servers or lists, or reuse of any copyrighted components of this work in other works.
ISSN:
2162-2337
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