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http://dx.doi.org/10.5573/ieek.2013.50.8.061

Iterative MIMO Reception Based on Low Complexity Soft Detection  

Shin, Sang-Sik (Defense Agency for Technology and Quality)
Choi, Ji-Woong (Daegu Gyeongbuk Institute of Science & Technology)
Publication Information
Journal of the Institute of Electronics and Information Engineers / v.50, no.8, 2013 , pp. 61-66 More about this Journal
Abstract
In this paper, we propose an iterative soft dimension reduction based multi-input multi-output (MIMO) detection for coded spatial multiplexing system. In spite of better performance of iterative MIMO detection, its computational complexity gives a significant burden to the receivers. To mitigate this problem, we propose a scheme employing all ordering successive interference cancellation (AOSIC) for hard-decision detection and dimension reduction soft demodulator (DRSD) with iterative decoding for soft-decision detectors, respectively. This scheme can reduce complexity of iterative soft MIMO detection and provide better performance than other conventional detectors.
Keywords
Spatial multiplexing(SM); Inter-stream interference(ISI); Log-likelihood ratio(LLR); Dimension reduction soft demodulation(DRSD); All ordering successive interference cancellation(AOSIC);
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