Carrier Frequency Offset Estimation Based on Circular Harmonic Expansion for Optical Coherent M-QAM Communication Systems
- Nguyen, Trung Hien
- Joindot, Michel
- Gay, Mathilde
- Bramerie, Laurent
- Simon, Jean-Claude
- Scalart, Pascal
- Sentieys, Olivier
DOIAbstract
International audienceCircular 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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