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Maximilian Schädler

Nonlinear Equalization for Optical Communications Based on Entropy-Regularized Mean Square Error

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Jun 02, 2022
Francesca Diedolo, Georg Böcherer, Maximilian Schädler, Stefano Calabró
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An entropy-regularized mean square error (MSE-X) cost function is proposed for nonlinear equalization of short-reach optical channels. For a coherent optical transmission experiment, MSE-X achieves the same bit error rate as the standard MSE cost function and a significantly higher achievable information rate.

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Experiments on Bipolar Transmission with Direct Detection

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May 11, 2022
Thomas Wiegart, Daniel Plabst, Tobias Prinz, Talha Rahman, Maximilian Schädler, Nebojša Stojanović, Stefano Calabrò, Norbert Hanik, Gerhard Kramer
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Achievable information rates of bipolar 4- and 8-ary constellations are experimentally compared to those of intensity modulation (IM) when using an oversampled direct detection receiver. The bipolar constellations gain up to 1.8 dB over their IM counterparts.

* submitted to ECOC 2022 
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