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    National Tsing Hua University Institutional Repository > 研究中心 > 電腦與通訊科技研發中心 > 技術報告 >  Multiuser detection for frequency-hopped spread spectrum systems with BFSK modulation

    Please use this identifier to cite or link to this item: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/13478

    Title: Multiuser detection for frequency-hopped spread spectrum systems with BFSK modulation
    Authors: Tsung-Cheng Wu
    Chi-chao Chao
    Kwang-Cheng Chen
    教師: 趙啟超
    Date: 2001
    Publisher: Institute of Electrical and Electronics Engineers Inc.
    Relation: Vehicular Technology Conference, 2001. VTC 2001 Fall. IEEE VTS 54th
    Volume 1, 2001 Page(s):323 - 327 vol.1
    Keywords: diversity reception
    frequency hop communication
    frequency shift keying
    maximum likelihood detection
    multi-access systems
    Abstract: This paper proposes new multiuser detectors for frequency-hopped spread spectrum multiple-access (FH-SSMA) based on binary frequency shift keying (BFSK) modulation and channelized frequency hopping. With knowledge of hopping sequences and envelopes of active users, the proposed scheme is a sub-optimal detector under maximum likelihood test. Diversity combining is employed as an anti-multiple-access interference technique which improves the performance significantly. In slow frequency-hopped systems, we demonstrate that the proposed multiuser detector combined with diversity is robust to multiple-access interference. In fast frequency-hopped systems with heavy load of multiple-access, the detector can afford more simultaneous users than the multiuser detector with M-ary frequency shift keying (MFSK) modulation.
    Relation Link: http://webservices.ieee.org/pindex_basic.html
    URI: http://nthur.lib.nthu.edu.tw/handle/987654321/13478
    Appears in Collections:[電腦與通訊科技研發中心] 技術報告
    [通訊工程研究所] 會議論文

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