National Tsing Hua University Institutional Repository:An improved adaptive receiver for OFDM systems using conjugate transmission
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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  >  An improved adaptive receiver for OFDM systems using conjugate transmission


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    题名: An improved adaptive receiver for OFDM systems using conjugate transmission
    作者: Chin-Liang Wang;Po-Chung Shen;Jia-Hong Huang
    教師: 王晉良
    日期: 2011
    出版者: Institute of Electrical and Electronics Engineers
    關聯: Proceedings of the 2011 IEEE Vehicular Technology Conference - Spring (VTC 2011-Spring), Budapest, Hungary, MAY 15-18, 2011, Pages 1 - 5
    关键词: OFDM
    摘要: In this paper, we propose an improved adaptive receiver in order to overcome the performance degradation problem encountered by the existing conjugate transmission schemes due to a time-varying frequency offset. We apply two different phase rotations on the two receiving paths instead of employing only one common phase rotation for both paths in the previous work. The two phase rotations are chosen properly based on the derived optimization results, such that an additional phase distortion on the detected symbol could be completely removed. For practical use, the block least mean-squared algorithm is applied to adaptively update the two phase rotations with the frequency offset variation. Computer simulation results show that the proposed scheme outperforms the existing works in terms of bit error rate performance, especially when a rapid frequency offset variation is considered.
    相関连結: http://www.ieee.org/
    URI: http://nthur.lib.nthu.edu.tw/dspace/handle/987654321/83665
    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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