Frequency-domain soft interference cancellation for multicode CDMA transmissions

Koichi Ishihara, Kazuaki Takeda, Fumiyuki Adachi

    研究成果: Conference contribution

    7 被引用数 (Scopus)

    抄録

    Frequency-domain equalization (FDE) based on minimum mean square error (MMSE) criterion can significantly improve the BER performance of DS- and MC-CDMA signal transmissions in a severe frequency-selective fading channel. However, since the frequency-distorted signal cannot be completely equalized, the residual inter-code interference (ICI) limits the BER performance improvement. In 4G systems, much higher variable rate data services than in the present 3G systems are required. Orthogonal multicode transmission technique has flexibility in offering variable rate services. However, the BER performance degrades as the number of parallel codes increases. In this paper, we propose a frequency-domain soft interference cancellation (FDSIC) for multicode DS- and MC-CDMA signal transmissions and their achievable BER performances are evaluated by computer simulation.

    本文言語English
    ホスト出版物のタイトル2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Proceedings
    ページ2523-2527
    ページ数5
    出版ステータスPublished - 2006 12月 1
    イベント2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring - Melbourne, Australia
    継続期間: 2006 5月 72006 7月 10

    出版物シリーズ

    名前IEEE Vehicular Technology Conference
    5
    ISSN(印刷版)1550-2252

    Other

    Other2006 IEEE 63rd Vehicular Technology Conference, VTC 2006-Spring
    国/地域Australia
    CityMelbourne
    Period06/5/706/7/10

    ASJC Scopus subject areas

    • コンピュータ サイエンスの応用
    • 電子工学および電気工学
    • 応用数学

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