Experimental investigation of sampling rate selection with fractional sampling for IEEE802.11b WLAN system

Yu Imaoka, Yukitoshi Sanada

    研究成果: Conference contribution

    5 被引用数 (Scopus)

    抄録

    In a Direct-Sequence / Spread-Spectrum (DS/SS) system, a RAKE receiver is used to improve a bit error rate (BER) performance. The RAKE receiver can collect more signal energy through independent paths and achieve path diversity. The RAKE receiver obtains further diversity gain through fractional sampling. However, the power consumption of the RAKE receiver increases in proportion to a sampling rate and does not always maximize the signal-to-noise ratio (SNR). Therefore, the sampling rate selection schemes have been proposed to reduce the average sampling rate without degrading the BER. These schemes select the tap positions and the sampling rate depending on channel conditions. In this paper, sampling rate selection schemes for the DS/SS system are investigated through an experiment. Numerical results show that the power consumption can be reduced even through the experiment without the degradation of the BER.

    本文言語English
    ホスト出版物のタイトルProceedings of the 2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
    DOI
    出版ステータスPublished - 2009 12 1
    イベント2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall - Anchorage, AK, United States
    継続期間: 2009 9 202009 9 23

    出版物シリーズ

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

    Other

    Other2009 IEEE 70th Vehicular Technology Conference Fall, VTC 2009 Fall
    国/地域United States
    CityAnchorage, AK
    Period09/9/2009/9/23

    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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