On the performance of Walsh-LS codes in CDMA systems

Peter G. Conti, Upul Gunawardana, Ranjith Liyanapathirana

    Research output: Chapter in Book / Conference PaperConference Paper

    Abstract

    ![CDATA[Walsh-LS-CDMA (WLS-CDMA) systems is a novel concept employing loosely synchronous (LS) codes and Walsh codes. The Walsh-LS spreading codes exhibit an interference free window (IFW) in the auto-correlation and cross-correlation functions, which has the potential to suppress inter symbol interference (ISI) and multiple access interference (MAI), resulting in increased capacity compared to traditional CDMA systems. In this paper the perspective of WLS-CDMA is explored. It is found that the forward-link has better performance than traditional CDMA systems, however in the reverse-link the Walsh-LS codes lose orthogonality.]]
    Original languageEnglish
    Title of host publicationTencon 2005: Proceedings of the 2005 IEEE International Region 10 Conference
    PublisherIEEE
    Number of pages4
    ISBN (Print)0780393112
    Publication statusPublished - 2005
    EventTENCON -
    Duration: 14 Nov 2006 → …

    Conference

    ConferenceTENCON
    Period14/11/06 → …

    Keywords

    • code division multiple access
    • codes
    • interference suppression
    • intersymbol interference
    • radio links
    • CDMA

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