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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/28049

Title: Beamforming Degradation of a W-CDMA Smart Antenna Under FDD and MAI Channel Estimation Errors
Authors: Chi-Min Li;Hsueh-Jyh Li;Senior Member;IEEE;Pao-Jen Wang
Contributors: 國立臺灣海洋大學:通訊與導航工程學系
Keywords: Line-of-sight (LOS);non-LOS (NLOS);smart antenna;wide-band code-division multiple access (W-CDMA)
Date: 2007
Issue Date: 2011-10-21T02:35:43Z
Publisher: IEEE Antennas and Wireless Propagation Letters
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/987654321/28049
Appears in Collections:[通訊與導航工程學系] 期刊論文

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