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    題名: Carrier frequency drift estimation for high mobility hierarchical-modulated MIMO-OFDM systems
    作者: Lee, Yang-Han;Lin, Jheng-Yao;Jan, Yih-Guang;Li, Wen-Ching;Wu, Jing-Shown;Tsao, Hen-Wai;Chuang, Ming-Hsueh;Chen, Qiang;Yuan, Qiaowei
    貢獻者: 淡江大學電機工程學系
    關鍵詞: MIMO-OFDM;Doppler Effect;hierarchical modulation;carrier frequency drift
    日期: 2011
    上傳時間: 2012-03-12 16:54:33 (UTC+8)
    出版者: Tokyo: The Institute of Electronics, Information and Communication Engineers
    摘要: In this paper the implementation of hierarchical-modulated pilot signals for carrier frequency drift estimation in high mobility multi-input multi-output orthogonal frequency division multiplexing (MIMO-OFDM) system is introduced. Specifically for a hierarchical-modulated 64QAM-OFDM system in which three Layers with two bits in each Layer are defined from the constellation point and the carrier frequency drift estimation is facilitated from every Layer instead of using all six constellation bits to possibly simplify the design and reduce the time in the estimation process. The carrier frequency drift estimation by using only one Layer and the system performance at the receiver terminal by utilizing this Layer's estimated carrier frequency drift are simulated and compared for various high mobile speeds in Rayleigh fading channels.
    關聯: IEICE Electronics Express 8(21), pp.1823-1828
    DOI: 10.1587/elex.8.1823
    顯示於類別:[電機工程學系暨研究所] 期刊論文

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