MMSE timing recovery using multi-channel early-late gates for analog multi-tone systems

Tsutomu Takeya, Tadahiro Kuroda

    研究成果: Conference contribution

    抄録

    A timing recovery scheme for high-speed wireline multi tone communication systems called Analog Multi-Tone (AMT) has been proposed. An accurate timing recovery is essential to a reliable high-speed AMT system which demodulates in analog domain. However, it is difficult to apply conventional digital domain timing recovery algorithms to AMT systems because of the limitations of power consumption and area occupation. This paper proposes a new timing recovery scheme for AMT systems without high-speed high-resolution ADCs. The proposed scheme minimizing mean square error (MSE) by sign-sign least mean square (SS-LMS) algorithm successfully estimates the timing offset for timing recovery. We call the proposed scheme multi-channel early-late gates because it is an extension of conventional early-late gate. The constellation diagram of demodulated signals after timing recovery and the convergence curves of timing estimate and MSE are simulated for performance evaluation. The simulation results indicate that the proposed scheme successfully estimates the timing offset for timing recovery in AMT systems without high-speed high-resolution ADCs and complex digital processing units.

    本文言語English
    ホスト出版物のタイトルFinal Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010
    DOI
    出版ステータスPublished - 2010 6月 28
    イベント4th International Symposium on Communications, Control, and Signal Processing, ISCCSP-2010 - Limassol, Cyprus
    継続期間: 2010 3月 32010 3月 5

    出版物シリーズ

    名前Final Program and Abstract Book - 4th International Symposium on Communications, Control, and Signal Processing, ISCCSP 2010

    Other

    Other4th International Symposium on Communications, Control, and Signal Processing, ISCCSP-2010
    国/地域Cyprus
    CityLimassol
    Period10/3/310/3/5

    ASJC Scopus subject areas

    • コンピュータ ネットワークおよび通信
    • 信号処理
    • 電子工学および電気工学

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