Modeling of DS-CDMA transmit power control in a fast fading channel with antenna diversity

Akihito Katoh, Fumiyuki Adachi

    研究成果: Article査読

    抄録

    In DS-CDMA mobile radio communications systems, transmit power control (TPC) is indispensable to regulate the variations in the received signal power produced by multipath fading. However, a practical TPC raises and lowers the mobile transmit power only at discrete time instants (the TPC rate is on the order of 1-2 kHz) and by a finite step size of the order of 1 dB. Therefore, TPC cannot completely compensate the received signal power variations and hence, the transmission performance degrades in a fast fading channel. The objective of this paper is to understand how TPC acts in a fast fading channel with antenna diversity reception and, based on this understanding, to model the TPC operation.

    本文言語English
    ページ(範囲)769-776
    ページ数8
    ジャーナルIEICE Transactions on Communications
    E86-B
    2
    出版ステータスPublished - 2003 2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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