An enhanced MMSE subchannel decision feedback equalizer with ICI suppression for FBMC/OQAM systems

Chih Wei Chen, Fumiaki Maehara

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

    5 Citations (Scopus)

    Abstract

    This paper proposes an enhanced decision feedback equalizer (DFE) for filter bank multicarrier (FBMC) systems over offset quadrature amplitude modulation (OQAM) based on a minimal mean square error (MMSE) criterion. For each subcarrier, besides one feedforward (FF) filter and one feedback (FB) filter, we add two intercarrier interference (ICI)-suppressing filters, which feed back detected precursors extracted from neighboring subchannels to enhance ICI suppression in the presence of multipath channels. Our simulation results indicate our proposal makes a considerable improvement comparing with MMSE-DFE under a severe ICI and ISI scenario despite few extra costs in computational complexity.

    Original languageEnglish
    Title of host publication2017 International Conference on Computing, Networking and Communications, ICNC 2017
    PublisherInstitute of Electrical and Electronics Engineers Inc.
    Pages1041-1045
    Number of pages5
    ISBN (Electronic)9781509045884
    DOIs
    Publication statusPublished - 2017 Mar 10
    Event2017 International Conference on Computing, Networking and Communications, ICNC 2017 - Silicon Valley, United States
    Duration: 2017 Jan 262017 Jan 29

    Other

    Other2017 International Conference on Computing, Networking and Communications, ICNC 2017
    CountryUnited States
    CitySilicon Valley
    Period17/1/2617/1/29

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    Keywords

    • decision feedback equalizer
    • FBMC
    • intercarrier interference
    • MMSE
    • OQAM

    ASJC Scopus subject areas

    • Computer Networks and Communications
    • Electrical and Electronic Engineering

    Cite this

    Chen, C. W., & Maehara, F. (2017). An enhanced MMSE subchannel decision feedback equalizer with ICI suppression for FBMC/OQAM systems. In 2017 International Conference on Computing, Networking and Communications, ICNC 2017 (pp. 1041-1045). [7876278] Institute of Electrical and Electronics Engineers Inc.. https://doi.org/10.1109/ICCNC.2017.7876278