Carrier Frequency Offset Estimation Based on Circular Harmonic Expansion for Optical Coherent M-QAM Communication Systems

Abstract : Circular harmonic expansion-based carrier frequency offset estimation is investigated for optical M-QAM communication systems. The proposed method, combined with a gradient-descent algorithm, shows better performance compared to already proposed VVMFOE and 4th power methods.
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Trung Hien Nguyen, Michel Joindot, Mathilde Gay, Laurent Bramerie, Jean-Claude Simon, et al.. Carrier Frequency Offset Estimation Based on Circular Harmonic Expansion for Optical Coherent M-QAM Communication Systems. 20th Opto-Electronics and Communications Conference (OECC 2015), Jun 2015, Shanghai, China. pp.1-3, ⟨10.1109/OECC.2015.7340175⟩. ⟨hal-01316911⟩

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