National Tsing Hua University Institutional Repository:A synchronization scheme based on Gaussian pulses for cooperative MIMO OFDM systems
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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機工程學系 > 會議論文  >  A synchronization scheme based on Gaussian pulses for cooperative MIMO OFDM systems


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    题名: A synchronization scheme based on Gaussian pulses for cooperative MIMO OFDM systems
    作者: Chin-Liang Wang;Ying-Yi Chen;Hung-Chin Wang
    教師: 王晉良
    日期: 2012
    出版者: Institute of Electrical and Electronics Engineers
    關聯: Proceedings of the 2012 IEEE International Symposium on Circuits and Systems, Seoul, Korea, 20-23 May 2012, Pages 1512 - 1515
    关键词: synchronization
    Gaussian pulses
    MIMO
    OFDM
    摘要: In this paper, we propose a novel preamble design of Gaussian pulses, along with a synchronization scheme, for cooperative MIMO OFDM systems. In our preamble design, the training signals of cooperating nodes are well separated from each other in both time domain and frequency domain to suppress their mutual interference in both domains, whereas they are only separated in either of the two domains in the state of the art. Accordingly, multiple propagation delays and carrier frequency offsets (CFOs) can be jointly estimated using the proposed synchronization scheme, while they are separately estimated in time domain and frequency domain in conventional synchronization schemes. We also design a proper correlation window size for the proposed synchronization scheme to effectively reduce computational complexity as well as to maintain satisfactory performance. Computer simulations verify the superiority of the proposed approach over existing synchronization schemes.
    相関连結: http://www.ieee.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/83656
    显示于类别:[電機工程學系] 會議論文
    [通訊工程研究所] 會議論文
    [電腦與通訊科技研發中心] 會議論文

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