Experimental Verification of Rate Flexibility and Probabilistic Shaping
  by 4D Signaling

Steiner, Fabian; Da Ros, Francesco; Yankov, Metodi Plamenov; Böcherer, Georg; Schulte, Patrick; Forchhammer, Søren; Kramer, Gerhard

doi:10.48550/arXiv.1803.06746

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Experimental Verification of Rate Flexibility and Probabilistic Shaping by 4D Signaling

preprint

posted on 2023-11-30, 05:25 authored by Fabian Steiner, Francesco Da Ros, Metodi Plamenov Yankov, Georg Böcherer, Patrick Schulte, Søren Forchhammer, Gerhard Kramer

The rate flexibility and probabilistic shaping gain of $4$-dimensional signaling is experimentally tested for short-reach, unrepeated transmission. A rate granularity of 0.5 bits/QAM symbol is achieved with a distribution matcher based on a simple look-up table.