Probabilistic sha** and forward error correction for fiber-optic communication systems

G Böcherer, P Schulte, F Steiner - Journal of Lightwave …, 2019 - ieeexplore.ieee.org
This tutorial paper provides a foundation for integrating probabilistic sha** (PS) and
forward error correction (FEC). A layered PS-FEC architecture consisting of a PS encoder …

End-to-end learning for GMI optimized geometric constellation shape

RT Jones, MP Yankov, D Zibar - 45th European Conference on …, 2019 - ieeexplore.ieee.org
Autoencoder-based geometric sha** is proposed that includes optimizing bit map**s.
Up to 0.2 bits/QAM symbol gain in GMI is achieved for a variety of data rates and in the …

Adaptive probabilistic shaped modulation for high-capacity free-space optical links

FP Guiomar, A Lorences-Riesgo, D Ranzal… - Journal of Lightwave …, 2020 - opg.optica.org
Infrared free-space optics (FSO) provide an attractive solution for ultra-high-capacity
wireless communications. However, the full potential of FSO is still being hindered by the …

Probabilistic sha** for finite blocklengths: Distribution matching and sphere sha**

YC Gültekin, T Fehenberger, A Alvarado, FMJ Willems - Entropy, 2020 - mdpi.com
In this paper, we provide a systematic comparison of distribution matching (DM) and sphere
sha** (SpSh) algorithms for short blocklength probabilistic amplitude sha**. For …

Kurtosis-limited sphere sha** for nonlinear interference noise reduction in optical channels

YC Gültekin, A Alvarado, O Vassilieva, I Kim… - Journal of Lightwave …, 2022 - opg.optica.org
Nonlinear interference (NLI) generated during the propagation of an optical waveform
through the fiber depends on the fourth order standardized moment of the channel input …

Divergence-optimal fixed-to-fixed length distribution matching with shell map**

P Schulte, F Steiner - IEEE Wireless Communications Letters, 2019 - ieeexplore.ieee.org
Distribution matching (DM) transforms independent and Bernoulli (1/2) distributed bits into a
sequence of output symbols with a desired distribution. A fixed-to-fixed length, invertible DM …

Probabilistic amplitude sha**

G Böcherer - Foundations and Trends® in Communications …, 2023 - nowpublishers.com
Probabilistic amplitude sha** (PAS) proposed in Böcherer, Steiner, Schulte [24] is a
practical architecture for combining non-uniform distributions on higher-order constellations …

Probabilistic constellation sha**: An implementation perspective

J Cho - 2022 Optical Fiber Communications Conference and …, 2022 - ieeexplore.ieee.org
This tutorial reviews recent advances in probabilistic constellation sha** (PCS) with
particular focus on implementation perspectives. We analyze the complexity of several …

On the nonlinear sha** gain with probabilistic sha** and carrier phase recovery

S Civelli, E Parente, E Forestieri… - Journal of Lightwave …, 2023 - ieeexplore.ieee.org
The performance of different probabilistic amplitude sha** (PAS) techniques in the
nonlinear regime is investigated, highlighting its dependence on the PAS block length and …

Demonstration of a real-time 14 Tb/s multi-aperture transmit single-aperture receive FSO system with class 1 eye-safe transmit intensity

K Matsuda, M Binkai, S Koshikawa… - Journal of Lightwave …, 2022 - opg.optica.org
To achieve a link budget capable of supporting high capacity free space optical
communication (FSO), a high transmit power is required. However, the transmitter can …