A Simplified Soft-output QRD-M MIMO Detector
- Jian HF (Jian Haifang)
- Yi Y (Yi Yong)
- Shi Y (Shi Yin)
- Jian, HF, Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China.
Publication date
January 2009
DOI Publisher
Institute of Electrical and Electronics Engineers (IEEE)Abstract
In this paper, a low-complexity soft-output QRD-M detection algorithm is proposed for high-throughput Multiple-input multiple-output (MIMO) systems. By employing novel expansion on demand and distributed sorting scheme, the proposed algorithm can reduce 70% and 85% foundational operations for 16-QAM and 64-QAM respectively compared to the conventional QRD-M algorithm. Furthermore, the proposed algorithm can yield soft information to improve the bit error rate (BER) performance. Simulation results show that the proposed algorithm can achieve a near-NIL detection performance with less foundational operation
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