Hybrid ZF-ML detection for N × N spatial multiplexing systems

Hong Wei Shieh, Yinman Lee, Sok Ian Sou

研究成果: Conference contribution

1 引文 (Scopus)

摘要

Both zero-forcing (ZF) and maximum-likelihood (ML) criteria are widely used for signal detection in multipleinput multiple-output (MIMO) spatial multiplexing systems. In this paper, we propose a special formulation to combine these two detection algorithms for the N × N scenario, which can provide a good compromise between the error-rate performance and computational complexity. Specifically, the detection is decomposed into some ZF stages, and at each of these stages a fraction of the data streams is nulled to zero. After that, an ML stage is performed utilizing the idea of ML with reduced dimension. We show that the resultant bit-error rate (BER) performance of this hybrid ZF-ML detection can be much better than that of the ZF detection, and the total number of floating-point operations (flops) can be comparable with that of the conventional ZF calculation.

原文English
主出版物標題2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011
頁面327-332
頁數6
DOIs
出版狀態Published - 2011 十二月 28
事件2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011 - Shanghai, China
持續時間: 2011 十月 102011 十月 12

出版系列

名字International Conference on Wireless and Mobile Computing, Networking and Communications
ISSN(列印)2161-9646
ISSN(電子)2161-9654

Other

Other2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011
國家China
城市Shanghai
期間11-10-1011-10-12

指紋

Multiplexing
Maximum likelihood
Signal detection
Bit error rate
Computational complexity

All Science Journal Classification (ASJC) codes

  • Computer Networks and Communications
  • Hardware and Architecture
  • Software

引用此文

Shieh, H. W., Lee, Y., & Sou, S. I. (2011). Hybrid ZF-ML detection for N × N spatial multiplexing systems. 於 2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011 (頁 327-332). [6085380] (International Conference on Wireless and Mobile Computing, Networking and Communications). https://doi.org/10.1109/WiMOB.2011.6085380
Shieh, Hong Wei ; Lee, Yinman ; Sou, Sok Ian. / Hybrid ZF-ML detection for N × N spatial multiplexing systems. 2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011. 2011. 頁 327-332 (International Conference on Wireless and Mobile Computing, Networking and Communications).
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abstract = "Both zero-forcing (ZF) and maximum-likelihood (ML) criteria are widely used for signal detection in multipleinput multiple-output (MIMO) spatial multiplexing systems. In this paper, we propose a special formulation to combine these two detection algorithms for the N × N scenario, which can provide a good compromise between the error-rate performance and computational complexity. Specifically, the detection is decomposed into some ZF stages, and at each of these stages a fraction of the data streams is nulled to zero. After that, an ML stage is performed utilizing the idea of ML with reduced dimension. We show that the resultant bit-error rate (BER) performance of this hybrid ZF-ML detection can be much better than that of the ZF detection, and the total number of floating-point operations (flops) can be comparable with that of the conventional ZF calculation.",
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Shieh, HW, Lee, Y & Sou, SI 2011, Hybrid ZF-ML detection for N × N spatial multiplexing systems. 於 2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011., 6085380, International Conference on Wireless and Mobile Computing, Networking and Communications, 頁 327-332, 2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011, Shanghai, China, 11-10-10. https://doi.org/10.1109/WiMOB.2011.6085380

Hybrid ZF-ML detection for N × N spatial multiplexing systems. / Shieh, Hong Wei; Lee, Yinman; Sou, Sok Ian.

2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011. 2011. p. 327-332 6085380 (International Conference on Wireless and Mobile Computing, Networking and Communications).

研究成果: Conference contribution

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Shieh HW, Lee Y, Sou SI. Hybrid ZF-ML detection for N × N spatial multiplexing systems. 於 2011 IEEE 7th International Conference on Wireless and Mobile Computing, Networking and Communications, WiMob'2011. 2011. p. 327-332. 6085380. (International Conference on Wireless and Mobile Computing, Networking and Communications). https://doi.org/10.1109/WiMOB.2011.6085380