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

Yu Imaoka, Yukitoshi Sanada

    研究成果: Article査読

    1 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, 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 and the power consumption can be reduced. In this paper, sampling rate selection schemes for the DS/SS system are investigated through an experiment since there have been no numerical results 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
    ページ(範囲)3043-3051
    ページ数9
    ジャーナルIEICE Transactions on Communications
    E92-B
    10
    DOI
    出版ステータスPublished - 2009 10月

    ASJC Scopus subject areas

    • ソフトウェア
    • コンピュータ ネットワークおよび通信
    • 電子工学および電気工学

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