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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28050

Title: Beamforming Degradation of a W-CDMA Smart Antenna Under FDD and MAI Channel Estimation Errors
Authors: Chi-Min Li;Hsueh-Jyh Li;Pao-Jen Wang
Contributors: NTOU:Department of Communications Navigation and Control Engineering
國立臺灣海洋大學:通訊與導航工程學系
Date: 2007
Issue Date: 2011-10-21T02:35:43Z
Publisher: Nation Symposium on Telecommunications
Abstract: Abstract:A smart antenna adopts the beamforming technique to increase the signal-to-(interference plus noise) ratio (SINR) and system capacity. In this paper, the impact of two channel estimation errors - frequency-division duplex (FDD) estimation error and multiple-access interference (MAI) estimation error for the beamforming of a wide-band code-division multiple-access smart antenna - are analyzed by using the measured channel state information. Results show that for a complex conjugate beamforming, FDD estimation error will cause median degradation of less than 1 dB if the desired signal is in a line-of-sight (LOS) channel and 1-3 dB if in a non-LOS (NLOS) channel. In addition, the MAI estimation error will cause 0.3-0.5 dB degradation per interference in the LOS case and 0.5-1 dB degradation in the NLOS case
Relation: 6, pp.137-140
URI: http://ntour.ntou.edu.tw/handle/987654321/28050
Appears in Collections:[通訊與導航工程學系] 演講及研討會

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