Reliability based soft transition technique for dual-mode blind equalizers

Wee Gin Lim*, Rodney A. Kennedy, Thushara D. Abhayapala

*Corresponding author for this work

    Research output: Contribution to journalConference articlepeer-review

    10 Citations (Scopus)

    Abstract

    In this paper, we propose a new technique that facilitates soft transition between a startup algorithm and a decision directed (DD) algorithm in blind adaptive equalizers. The algorithm-pair combined using a reliability measure that is proportional to an estimate of the probability of the equalizer detecting a correct symbol. This measure takes into account both the equalized signal and its statistical distribution. The main feature of the technique is in the smooth and automatic switching from the startup algorithm to the DD algorithm and vice versa depending on the value of the reliability measure. This technique has been compared with the popular Benveniste-Goursat and Stop-And-Go algorithms and is shown to exhibit a faster rate of convergence and lower steady state error.

    Original languageEnglish
    Pages (from-to)2631-2635
    Number of pages5
    JournalConference Record - International Conference on Communications
    Volume5
    Publication statusPublished - 2004
    Event2004 IEEE International Conference on Communications - Paris, France
    Duration: 20 Jun 200424 Jun 2004

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