Joint Receiving Scheme Of Rake Combining And Viterbi Equalization For Low Spreading Factor Wideband Ds-Cdma Systems

Y Chen,Cl Xu, Cim Zhao,Xh You, W Park

PIMRC 2003: 14TH IEEE 2003 INTERNATIONAL SYMPOSIUM ON PERSONAL, INDOOR AND MOBILE RADIO COMMUNICATIONS PROCEEDINGS, VOLS 1-3 2003（2003）

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摘要

A joint receiving scheme of RAKE combining and soft-output Viterbi equalization for low spreading factor wideband DS-CDMA systems is proposed in this paper. The equalization technique based on soft-output Viterbi algorithm (SOVA) is applied to symbol sequences after RAKE combining to effectively eliminate the multi-path interference (MPI) and inter-symbol interference (ISI) during transmission of high rate data in wideband DS-CDMA systems, which provides significant improvement over,conventional RAKE receiver.

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关键词

spread spectrum communication,intersymbol interference,radio receivers,soft output viterbi algorithm,rake receiver,code division multiple access,broadband networks

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