Performance of TD-SCDMA System with Imperfect Beamforming Smart antennas

Chen  Bo; Yang  Guang; Chang  Yong-Yu; Yang  Da-Cheng

doi:10.3724/SP.J.1146.2006.01590

Volume 30 Issue 4

Dec. 2010

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Article Navigation > Journal of Electronics & Information Technology > 2008 > 30(4): 776-779

Chen Bo, Yang Guang, Chang Yong-Yu, Yang Da-Cheng. Performance of TD-SCDMA System with Imperfect Beamforming Smart antennas[J]. Journal of Electronics & Information Technology, 2008, 30(4): 776-779. doi: 10.3724/SP.J.1146.2006.01590

Citation:

Chen Bo, Yang Guang, Chang Yong-Yu, Yang Da-Cheng. Performance of TD-SCDMA System with Imperfect Beamforming Smart antennas[J]. Journal of Electronics & Information Technology, 2008, 30(4): 776-779. doi: 10.3724/SP.J.1146.2006.01590

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Performance of TD-SCDMA System with Imperfect Beamforming Smart antennas

doi: 10.3724/SP.J.1146.2006.01590 cstr: 32379.14.SP.J.1146.2006.01590

Received Date: 2006-10-18
Rev Recd Date: 2007-03-19
Publish Date: 2008-04-19

Abstract

Abstract

In practical wireless communication networks, downlink beamforming weights at the node B of smart antenna systems can be deteriorated due to variation of spatial signal vectors corresponding to mobile users or DOA estimation error. In this paper, the methodology for smart antenna systems with imperfect beamforming is proposed, the performance of smart antenna systems is studied in existing beamforming error scenarios and the accepted tolerance of the beamforming error in TD-SCDMA systems is researched on from the aspect of system capacity. On the one hand, the theoretical and simulation results show that beamforming accuracy of the smart antenna systems have great effect on the system capacity. On the other hand, they also indicate that the performance deterioration is remarkable if the beamforming error exceeds a threshold which is related to the system load.

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References(1)

References

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