Approximate Maximum a Posteriori Carrier Phase Estimator for Wiener Phase Noise Channels using Belief Propagation

2023/07/07 by Shrinivas Chimmalgi, Andrej Rode, Chimmalgi, Shrinivas +5
Computer Science · Engineering · #Advanced Wireless Communication Techniques #Blind Source Separation Techniques #Optical Network Technologies

paper · pdf · doi:10.48550/arxiv.2307.03517

openalex publication_date 2023/07/07 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/03

Abstract

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.

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