Direct-Sequence/Spread-Spectrum communication system with sampling rate selection diversity

Yohei Suzuki, Anas M. Bostamam, Mamiko Inamori, Yukitoshi Sanada

    Research output: Contribution to journalArticle

    5 Citations (Scopus)

    Abstract

    In this paper, sampling rate selection diversity (SRSD) scheme for Direct-Sequence/Spread-Spectrum (DS/SS) is proposed. In DS/SS communication systems, oversampling may be employed to increase the signal-to-noise ratio (SNR). However, oversampling enlarges the power consumption because signal processing of the receiver has to be carried out at a higher clock rate. Higher sampling rate does not always maximize the SNR. In the proposed SRSD scheme, the power consumption can be reduced by selecting the optimum sampling rate depending on the characteristics of the channel. The proposed SRSD scheme can also reduce the BER more than the conventional oversampling scheme under certain channel conditions.

    Original languageEnglish
    Pages (from-to)267-273
    Number of pages7
    JournalIEICE Transactions on Communications
    VolumeE91-B
    Issue number1
    DOIs
    Publication statusPublished - 2008 Jan 1

    Keywords

    • Cognitive radio
    • Direct-Sequence/Spread-Spectrum (DS/SS)
    • Diversity
    • Multipath channel
    • Oversamping
    • Rake receiver

    ASJC Scopus subject areas

    • Software
    • Computer Networks and Communications
    • Electrical and Electronic Engineering

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