A Noise-Predictive Partial Decision-Feedback Detection for MIMO Systems

Ni Xing; Wang Xiao-xiang; Du Juan

doi:10.3724/SP.J.1146.2006.00768

Volume 30 Issue 1

Jan. 2011

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Ni Xing, Wang Xiao-xiang, Du Juan. A Noise-Predictive Partial Decision-Feedback Detection for MIMO Systems[J]. Journal of Electronics & Information Technology, 2008, 30(1): 52-54. doi: 10.3724/SP.J.1146.2006.00768

Citation:

Ni Xing, Wang Xiao-xiang, Du Juan. A Noise-Predictive Partial Decision-Feedback Detection for MIMO Systems[J]. Journal of Electronics & Information Technology, 2008, 30(1): 52-54. doi: 10.3724/SP.J.1146.2006.00768

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A Noise-Predictive Partial Decision-Feedback Detection for MIMO Systems

doi: 10.3724/SP.J.1146.2006.00768 cstr: 32379.14.SP.J.1146.2006.00768

Received Date: 2006-06-02
Rev Recd Date: 2006-10-26
Publish Date: 2008-01-19

Abstract

Abstract

The traditional Vertical-Bell Laboratory layered Space-Time(V-BLAST) systems adopt an Ordered Decision-Feedback(ODF) detection strategy, which can significantly outperform the liner detector, however, it increases the computational complexity. Based on the conception of segmented detection, an improved noise-predictive Partial Decision-Feedback(PDF)detector is proposed, it introduces the MMSE principle and divides the receive signals into two segments. Since only feeding back the decision once, the MMSE-PDF detector reduces complexity significantly compared to the conventional ODF detector. The simulation results show that in the condition of SUI-3 channel model, 2 transmission antennas and 4 receive antennas, in the level, compared with the complicated V-BLAST system, the novel receiver only suffers 0.6dB loss, however, it 10-4has more or less 2~3 dB performance gains compared with the linear and other improved receiver based on the MMSE principle.

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References(1)

References

[1] Foschini G J. Layered space-Time Architecture for wireless communication in a fading environment when using multiple antennas. Bell Labs Tech. J. 1996, 1(2): 41-59. [2] Foschini G J, Golden G, and Valenzuela R. Simplified processing for wireless communication at high spectral efficiency[J].IEEE J. Select. Areas Comm.1999, 17(11):1841-1852 [3] Waters D W and Barry J R. Noise-predictive Decision- feedback detection for multiple-Input multiple-output channels[J].IEEE Trans. on Signal Processing.2005, 53(5):1852-1859 [4] Choi W J, Negi R, and Cioffi J M. Combined ML and DFE Decoding for the V-BLAST System. IEEE International Conference on Communications[C], Piscataway, June 2000, Vol. 3: 1243-1248. [5] Erceg V, Hari K V S, and Smith M S, et al.. Channel Models for Fixed Wireless Applications. IEEE 802.16.3 Task Group Contributions 2001, Feb 2001. [6] Waters D W and Barry J R. Partial decision-feedback detection for multiple-input multiple-output channels. IEEE ICC 2004, Paris, France, June 2004, Vol. 5: 20-24.

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