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

Hideyuki Matsutani, Yukitoshi Sanada, Masao Nakagawa

    Research output: Contribution to conferencePaper

    1 Citation (Scopus)

    Abstract

    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.

    Original languageEnglish
    Pages125-129
    Number of pages5
    Publication statusPublished - 1997 Dec 1
    EventProceedings of the 1997 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'97. Part 1 (of 3) - Helsinki, Finl
    Duration: 1997 Sep 11997 Sep 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

    • Electrical and Electronic Engineering

    Fingerprint Dive into the research topics of 'Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system'. Together they form a unique fingerprint.

  • Cite this

    Matsutani, H., Sanada, Y., & Nakagawa, M. (1997). Forward link intracell orthogonalization technique using multicarrier pre-decorrelation for CDMA wireless local communication system. 125-129. Paper presented at Proceedings of the 1997 International Symposium on Personal, Indoor and Mobile Radio Communications, PIMRC'97. Part 1 (of 3), Helsinki, Finl, .