Adaptive decision feedback equalization under parallel adaptation

Wee Gin Lim, R. A. Kennedy, T. D. Abhayapala

    Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

    4 Citations (Scopus)


    In this paper, we first propose an alternative decision feedback equalizer (DFE) scheme to the DFE scheme of Labat, Macchi and Laot. Both schemes are broken into two distinct operation modes which feature a linear equalizer during acquisition and a DFE after the initial convergence has been achieved. While avoiding some potential problems with the latter DFE, our scheme achieves similar overall performance in terms of convergence speed and steady state error. A second contribution is the development of a strategy that simultaneously adapts the linear equalizer and the DFE in a parallel fashion such that the switch-over between modes is no longer necessary. Consequently, smoother and usually faster convergence is achieved as switching disruptions are reduced. This scheme is especially advantageous under noisy and severe conditions as supported by our simulations.

    Original languageEnglish
    Title of host publicationICC 2008 - IEEE International Conference on Communications, Proceedings
    Number of pages5
    Publication statusPublished - 2008
    EventIEEE International Conference on Communications, ICC 2008 - Beijing, China
    Duration: 19 May 200823 May 2008

    Publication series

    NameIEEE International Conference on Communications
    ISSN (Print)0536-1486


    ConferenceIEEE International Conference on Communications, ICC 2008


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