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    Title: Frequency Synchronization plus Channel Estimation by Least Squares Approach for OFDM in Frequency-Selective Channels
    Authors: Yen, Rainfield Y.;Liu, Hong-Yu
    Contributors: 淡江大學電機工程學系
    Keywords: Orthogonal Frequency Division Multiplexing OFDM;Carrier Frequency Offset CFO;Least-Squares Estimation;Doppler Spread;Channel Estimation;Synchronization
    Date: 20110601
    Issue Date: 2013-05-15 15:44:21 (UTC+8)
    Publisher: 新北市:淡江大學
    Abstract: Applying the least squares technique, we perform frequency synchronization and channel estimation by using repeated identical blocks of training data for orthogonal frequency division multiplexing (OFDM) systems in frequency-selective channels. Analyses on the performances of our estimations are given. Then, the symbol error rate (SER) performance for QAM transmission in Rayleigh fading channels under imperfect estimations is investigated and compared with a closed-form expression for the ideal SER with perfect estimations. Simulation results are found in good agreements with theoretical predictions and prove that our algorithm provides good estimators.
    Relation: Tamkang Journal of Science and Engineering=淡江理工學刊 14(2), pp.131-140
    DOI: 10.6180/jase.2011.14.2.06
    Appears in Collections:[電機工程學系暨研究所] 期刊論文

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