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Author: search.filters.author.Lakanchanh, DonekeoSubject: search.filters.subject.Adaptive modulation

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    Histogram compensation to improve blind modulation detection in adaptive OFDM
    (2009-12-01)
    Lakanchanh, Donekeo
    ;
    Yoshizawa, Shingo
    ;
    Noppanakeepong, Suthichai
    ;
    Miyanaga, Yoshikazu
    This paper proposes a blind modulation detection technique for adaptive orthogonal frequency division multiplexing (Adaptive OFDM) communications. Adaptive modulations are applied to improve communication performance in OFDM over complicated multi-path fading channels. This paper proposes a new method which reduces detection errors in blind modulation and improves communication throughput in adaptive OFDM systems. The new proposed is based on statistical methods using a combination of distance histogram and phase histogram methods. It can improve communication performance and increases a data rate by not sending side information about modulation modes. The proposed method has showed better blind detection performance at lower SNR regions than the previous method. ©2009 IEEE.