Bi-harmonic decomposition-based maximum loglikelihood estimator for carrier phase estimation of coherent optical M-QAM

Trung-Hien Nguyen,Pascal Scalart,Laurent Bramerie,Christophe Peucheret,Olivier Sentieys,J-C. Simon,Michel Joindot

Bi-harmonic decomposition-based maximum loglikelihood estimator for carrier phase estimation of coherent optical M-QAM

2016

Trung-Hien Nguyen
Pascal Scalart
Laurent Bramerie
Christophe Peucheret
Olivier Sentieys
J-C. Simon
Michel Joindot

A simple feedforward M-QAM carrier phase estimation method is presented and compared to VVMPE-ML and BPS algorithms with 64-QAM and 128-QAM. The laser-linewidth tolerance of the proposed improved method outperforms that of VVMPE-ML and BPS.

Keywords:

Phase noise
Signal processing
Quadrature amplitude modulation
Phase (waves)
Estimator
QAM
Optics
Electronic engineering
Harmonic analysis
Modulation
Physics
Harmonic

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