The blind phase search (BPS) algorithm for carrier phase estimation is known to have sub-optimal performance for probabilistically shaped constellations. We present a belief propagation based approximate maximum a posteriori carrier phase estimator and compare its performance with the standard and an improved BPS algorithm.
@article{arxiv.2307.03517,
title = {Approximate Maximum a Posteriori Carrier Phase Estimator for Wiener Phase Noise Channels using Belief Propagation},
author = {Shrinivas Chimmalgi and Andrej Rode and Luca Schmid and Laurent Schmalen},
journal= {arXiv preprint arXiv:2307.03517},
year = {2023}
}
Comments
Accepted for presentation at European Conference on Optical Communications 2023. Updated to include copyright notice