Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system

Hideyuki Matsutani, Yukitoshi Sanada, Masao Nakagawa

    研究成果: Paper査読

    1 被引用数 (Scopus)

    抄録

    In this paper a new intracell orthogonalization technique for a code division multiple access (CDMA) wireless local communication system is proposed. On the forward link of the system, it is necessary to achieve high bit rate transmission and to reduce the complexity of the receiving terminal. To meet these two requirements, cyclically shifted spreading sequences are utilized. However it is necessary to orthogonalize the multiple signals since these sequences are cross-correlated. One way of achieving orthogonalization is pre-decorrelation. However, the orthogonality does not clearly appear in a multipath fading channel because of the interchip interference caused by multipath. Therefore in this paper, pre-decorrelation is combined with multicarrier modulation. The results obtained through computer simulation show that the proposed technique can achieve orthogonality in a multipath fading channel. Also the proposed technique makes efficient forward link power control possible, and reduces intercell interference.

    本文言語English
    ページ125-129
    ページ数5
    出版ステータスPublished - 1997 12月 1
    イベントProceedings of the 1997 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'97. Part 1 (of 3) - Helsinki, Finl
    継続期間: 1997 9月 11997 9月 4

    Other

    OtherProceedings of the 1997 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'97. Part 1 (of 3)
    CityHelsinki, Finl
    Period97/9/197/9/4

    ASJC Scopus subject areas

    • 電子工学および電気工学

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