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Overcoming WSS Filtering with Bandwidth-Variable Probabilistic Constellation Shaping.

Fernando P. Guiomar,Marco A. Fernandes,Adriano C. Messias,Tomaz de M. Vilela,Daniel A. Formiga,Jacklyn D. Reis,Paulo P. Monteiro

ECOC（2021）

Cited 2|Views0
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Abstract
Employing probabilistic constellation shaping with jointly optimized entropy and symbol-rate, we demonstrate that the tolerance towards WSS filtering can be significantly enhanced. Compared with standard uniform modulation, OSNR gains in the range of 1-3 dB are experimentally demonstrated for 400G-600G systems, after 5-10 WSS passes.
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Key words
WSS filtering,bandwidth-variable probabilistic constellation shaping,jointly optimized entropy,standard uniform modulation,OSNR gains,noise figure 1.0 dB to 3.0 dB
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