Multicode DS-CDMA with joint transmit/receive frequency-domain equalization

Kazuki Takeda, Hiromichi Tomeba, Fumiyuki Adachi

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    7 Citations (Scopus)

    Abstract

    Bit error rate (BER) performance of multicode direct-sequence code division multiple access (DS-CDMA) in a frequency-selective channel severely degrades due to strong inter-chip interference (ICI). Frequency-domain equalization (FDE) based on the minimum mean square error (MMSE) criterion can take advantage of the channel frequency-selectivity and significantly improve the BER performance. However, the performance improvement is limited by the residual ICI which is present after MMSE-FDE. In this paper, we apply a joint transmit/receive MMSE-FDE (called double MMSE-FDE in this paper) for multicode DS-CDMA signal transmissions to further improve the BER performance. We derive the conditional BER for the given channel realization and evaluate the achievable average BER performance by Monte-Carlo numerical computation method. The BER performance is confirmed by the computer simulation.

    Original languageEnglish
    Title of host publication2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages541-545
    Number of pages5
    ISBN (Print)9781424451234
    DOIs
    Publication statusPublished - 2009
    Event2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009 - Tokyo, Japan
    Duration: 2009 Sep 132009 Sep 16

    Publication series

    NameIEEE International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC

    Other

    Other2009 IEEE 20th Personal, Indoor and Mobile Radio Communications Symposium, PIMRC 2009
    Country/TerritoryJapan
    CityTokyo
    Period09/9/1309/9/16

    Keywords

    • Component; FDE
    • DS-CDMA

    ASJC Scopus subject areas

    • Electrical and Electronic Engineering

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