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http://dx.doi.org/10.5573/ieek.2013.50.4.017

An LDC-based MU-MIMO System with Pre-coding for Interference Cancellation and Robust Reception  

Park, Myung Chul (School of Electronics Engineering, Kyungpook National University)
Jo, Bong-Gyun (School of Electronics Engineering, Kyungpook National University)
Han, Dong Seog (School of Electronics Engineering, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.4, 2013 , pp. 17-25 More about this Journal
Abstract
In this paper, a coding algorithm is proposed for multi-user multi-input multi-output (MU-MIMO) systems to improve the reception performance in fading conditions without reducing the bandwidth efficiency. The space division multiple access (SDMA) scheme that is one of the commonly used for MU-MIMO systems is vulnerable to the fading. The space time block code (STBC) scheme that is used to overcome the fading has a disadvantage of reduced throughput. The proposed MU-MIMO system first encodes transmitted symbols by linear dispersion code (LDC) which is less vulnerable to the fading and increases the throughput in proportional to the number of transmit antennas. Then, the LDC coded symbols are pre-coded by the result of singular value decomposition (SVD) of the estimated channel gain. We evaluate the performance of the proposed scheme compared with the conventional algorithms by computer simulations.
Keywords
LDC; MU-MIMO; SVD;
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Times Cited By KSCI : 1  (Citation Analysis)
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