Rate Adaptive Geometric Constellation Shaping Using Autoencoders and Many-To-One Mapping

19 Jul 2023  ·  Metodi P. Yankov, Ognjen Jovanovic, Darko Zibar, Francesco Da Ros ·

A many-to-one mapping geometric constellation shaping scheme is proposed with a fixed modulation format, fixed FEC engine and rate adaptation with an arbitrarily small step. An autoencoder is used to optimize the labelings and constellation points' positions.

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