Low-power adaptive pseudo noise code acquisition for spread-spectrum systems

Mau L. Wu*, Kuei-Ann Wen

*此作品的通信作者

    研究成果: Article同行評審

    1 引文 斯高帕斯(Scopus)

    摘要

    A novel pseudo noise code acquisition combined with the newly proposed adaptive sampling rate and threshold control (ASTC) algorithm is derived for low-power spread-spectrum systems with complementary metal-oxide-semiconductor implementations. Low-power performance can be achieved by reducing the sampling rate of the proposed system while maintaining the system performance. The sampling rate is dynamically updated due to the change of the channel noise level. Under the assumptions that the channel is additive white Gaussian noise slow-fading channel, up to 74.3% reduction in power consumption compared to the conventional fixed-sampling rate and fixed-threshold architecture is demonstrated with insignificant increase of system complexity. The proposed architecture can be applied to the design of low-power and controllable- performance spread-spectrum communication systems.

    原文English
    頁(從 - 到)748-760
    頁數13
    期刊IEEE Transactions on Wireless Communications
    1
    發行號4
    DOIs
    出版狀態Published - 1 12月 2002

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