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    ASIA unversity > 資訊學院 > 光電與通訊學系 > 期刊論文 >  Item 310904400/17116


    Please use this identifier to cite or link to this item: http://asiair.asia.edu.tw/ir/handle/310904400/17116


    Title: A novel equalizer structure for two-dimensional modulations with coherent demodulation
    Authors: 張清濠;Chang, Ching-Haur
    Contributors: 光電與通訊學系
    Keywords: Coherent Demodulation;Non-Coherent Demodulation;Equalizer;Symbol Error Rate
    Date: 2012-06
    Issue Date: 2012-11-26 10:22:09 (UTC+8)
    Abstract: "A novel equalizer structure capable of correcting channel distortion for two-dimensional
    modulations with coherent demodulation was presented. Based on the fact that the phase of the in-phase
    and quadrature sinusoids in the receiver must be synchronized to the phase shift introduced by the
    communication channel, a structure using a pair of real-valued equalizers, one for the in-phase and the
    other for the quadrature channels, was developed in this paper. Conventional approaches in this regard
    use structures with complex-valued arithmetic and thus call for a much higher computational complexity.
    Due to the fact that only real-valued arithmetic is needed for the new structure, a saving of 50%
    multiplications, compared to its complex-valued counterpart, is thus achieved even with a better symbol
    error rate performance. A more-with-less approach is thus obtained by using the new approach.
    Computer simulation results justified the assertions made in this paper."
    Relation: International Journal of Electronics, Communication & Instrumentation Engineering Research and Development
    Appears in Collections:[光電與通訊學系] 期刊論文

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