Adaptive prediction iterative channel estimation for combined antenna diversity and coherent rake reception of multipath-faded DSSS signals

Shinsuke Takaoka, Fumiyuki Adachi

    Research output: Contribution to journalArticlepeer-review

    2 Citations (Scopus)

    Abstract

    Adaptive prediction iterative channel estimation is presented for combined antenna diversity and coherent rake reception of direct sequence spread spectrum (DSSS) signals. Its first stage uses pilot-aided adaptive prediction channel estimation, while the succeeding iteration stages use decision feedback and moving average filtering for channel re-estimation. The bit error rate (BER) performance of DSSS signal computer simulations evaluate transmission in a frequency selective Rayleigh fading channel. It is found that the adaptive prediction iterative channel estimation is superior to the non adaptive iterative channel estimation using the conventional weighted multi-slot averaging (WMSA) filtering at the first iteration stage, particularly in a fast fading channel.

    Original languageEnglish
    Pages (from-to)2405-2415
    Number of pages11
    JournalIEICE Transactions on Communications
    VolumeE85-B
    Issue number11
    Publication statusPublished - 2002 Nov

    Keywords

    • DSSS
    • Fading channel
    • Iterative channel estimation
    • Pilot symbol

    ASJC Scopus subject areas

    • Software
    • Computer Networks and Communications
    • Electrical and Electronic Engineering

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