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《Journal of Zhejiang University(Engineering Science)》 2007-11
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Cell search algorithm for IEEE 802.16e OFDMA systems

CHENG Peng,ZHANG Zhao-yang,ZHOU Yue,QIU Pei-liang(Department of Information Science and Electronics Engineering,Zhejiang University,Hangzhou 310027,China)  
A novel cell search algorithm for IEEE 802.16e orthogonal frequency division multiplexing access(OFDMA) systems was proposed.The algorithm has two steps,i.e.downlink frame detection and cell ID identification.Based on the Euclidean distance in frequency domain,the frame detection algorithm considers the periodicity of the downlink preamble in time domain,thus efficiently improves the robustness of the detection procedure.A cell ID identification algorithm with adaptive-length correlator was proposed to greatly reduce the search time.System simulation shows that the proposed algorithm is robust and time efficient,and it is very feasible for OFDMA cellular systems,especially IEEE 802.16e OFDMA systems.
【Fund】: 国家自然科学基金资助项目(60572115);; 浙江省自然科学基金重点资助项目(Z104252);; 浙江省科技计划资助项目(2005C21005)
【CateGory Index】: TN929.5
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1 SUN Jian,QIU Pei-liang(Department of Information and Electronic Engineering,Zhejiang University,Hangzhou 310027,China);Frame detector suitable for orthogonal frequency division multiplexing based WLAN system[J];Journal of Zhejiang University(Engineering Science);2005-10
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