Iterative multi-user detection based on interleave in MIMO systems

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作者：
School of Information Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China [1 ]
不详 [2 ]
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来源：
Beijing Youdian Daxue Xuebao | 2006年 / 5卷 / 125-129期
关键词：
Algorithms - Bit error rate - Code division multiple access - Communication channels (information theory) - Computational complexity - Decision theory - Iterative methods - Signal interference - Signal receivers - Signal to noise ratio;
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摘要：
An iterative multi-user detection receiver structure is proposed for multiple input multiple output interleave division multiple access (MIMO-IDMA) systems. Different chip-level interleaving signatures distinguish users. A novel mean-based soft decision multi-user detection (SoD) algorithm is applied in multi-user detector. Simulation results show that the proposed SoD detection scheme improves the performance in signal noise ratio (SNR) around 2 dB compared to minimum mean square error (MMSE), 1 dB superior to soft interference cancellation (SoIC), and has lower bit error rate and complexity.
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