OFDM channel prediction using fuzzy update LMS algorithm in time-variant mobile channel

Jyh Horng Wen*, Cheih Yao Chang, Gwo Ruey Lee, Ching-Yao Huang

*此作品的通信作者

    研究成果同行評審

    14 引文 斯高帕斯(Scopus)

    摘要

    Channel predictor implemented by discrete Fourier transform (DFT) is considered, which predict the channel gain of each receiving path by adaptive filters. A fuzzy logic controlled step size could overcome the drawback of conventional least-mean-square error (LMS) algorithm. In this paper, LMS algorithm with fuzzy updated step size is proposed to realize the adaptive channel prediction in orthogonal frequency division multiplexing (OFDM) systems. Simulation results show that as compared to conventional LMS algorithm, the proposed algorithm can achieve a faster convergence rate and lower steady-state mean square error. The proposed algorithm can also achieve more robust tracking ability in the various channel environments.

    原文English
    主出版物標題2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
    頁面1943-1947
    頁數5
    DOIs
    出版狀態Published - 2006
    事件2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall - Montreal, QC, 加拿大
    持續時間: 25 9月 200628 9月 2006

    出版系列

    名字IEEE Vehicular Technology Conference
    ISSN(列印)1550-2252

    Conference

    Conference2006 IEEE 64th Vehicular Technology Conference, VTC-2006 Fall
    國家/地區加拿大
    城市Montreal, QC
    期間25/09/0628/09/06

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