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A Novel Based on Eigenvector Combine Transmission Diversity Scheme for
Ultra-wideband Communication System |
Zhang Xin-yue①; Tao Xiao-feng②; Zhang Ping②; Shen Shu-qun① |
①Department of Electronic Engineering, Beijing University of Posts & Telecommunications, Beijing 100876, China;
②Department of Telecommunication,Beijing University of Posts & Telecommunications, Beijing 100876, China |
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Abstract Ultra-WideBand (UWB) signal faced badly multi-path fading in indoor environment, RAKE receiver usually is adopted to gather multi-path energy and improve performance. A new diversity scheme is proposed in this paper, which implemented pretreatment in transmitter and RAKE combine in receiver respectively, and then a based on channel matrix eigen-value SVD algorithm is presented to estimated optimal parameter of delay time and combine weight. Both theoretic analysis and simulation show, the algorithm always gains maximized output SNR than conventional RAKE receiver.
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Received: 01 January 1900
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