English  |  正體中文  |  简体中文  |  全文笔数/总笔数 : 58273/91818 (63%)
造访人次 : 13798859      在线人数 : 56
RC Version 7.0 © Powered By DSPACE, MIT. Enhanced by NTU Library & TKU Library IR team.
搜寻范围 查询小技巧:
  • 您可在西文检索词汇前后加上"双引号",以获取较精准的检索结果
  • 若欲以作者姓名搜寻,建议至进阶搜寻限定作者字段,可获得较完整数据
  • 进阶搜寻

    jsp.display-item.identifier=請使用永久網址來引用或連結此文件: http://tkuir.lib.tku.edu.tw:8080/dspace/handle/987654321/53771

    题名: BER Analysis of OFDM Systems Impaired by DC Offset and Carrier Frequency Offset in Multipath Fading Channels
    作者: Yih, Chi-hsiao
    贡献者: 淡江大學電機工程學系
    关键词: Bit error rate;Fading;Performance analysis;Degradation;Interference;Phase shift keying;Phase modulation;OFDM modulation;Phase estimation;Analytical models
    日期: 2007-11
    上传时间: 2011-05-20 10:00:13 (UTC+8)
    出版者: IEEE Communications Society
    摘要: We perform bit-error-rate (BER) analysis of orthogonal frequency division multiplexing (OFDM) systems impaired by both direct current (DC) offset and carrier frequency offset (CFO) in multipath Rayleigh fading channels. Since the performance of OFDM systems is sensitive to the CFO, it is necessary to estimate and correct the CFO at the receiver. The existence of DC offset degrades the performance of CFO estimator and results in large residual CFO after compensation. Moreover, the process of CFO compensation spreads the DC offset energy and causes DC offset interference to all subcarriers. By deriving the BER formula for OFDM systems employing binary phase-shift keying modulation, the dependency of BER on the DC offset, CFO, and estimated CFO is accurately quantified. Simulation results validate the correctness of our theoretical analysis.
    關聯: IEEE Communications Letters 11(11), pp.842-844
    DOI: 10.1109/LCOMM.2007.070895
    显示于类别:[電機工程學系暨研究所] 期刊論文


    档案 大小格式浏览次数
    1089-7798_11(11)_p842-844.pdf112KbAdobe PDF183检视/开启



    DSpace Software Copyright © 2002-2004  MIT &  Hewlett-Packard  /   Enhanced by   NTU Library & TKU Library IR teams. Copyright ©   - 回馈