We review probabilistic constellation shaping (PCS), which has been a key enabler for
several recent record-setting optical fiber communications experiments. PCS provides both …

This tutorial paper provides a foundation for integrating probabilistic shaping (PS) and
forward error correction (FEC). A layered PS-FEC architecture consisting of a PS encoder …

The implementation difficulties of combining distribution matching (DM) and dematching
(invDM) for probabilistic shaping (PS) with soft-decision forward error correction (FEC) …

The use of advanced digital signal processing (DSP) technology in the high‐speed terahertz
(THz) communication can effectively compensate the linear and nonlinear effects of the …

Probabilistic amplitude shaping (PAS) proposed in Böcherer, Steiner, Schulte [24] is a
practical architecture for combining non-uniform distributions on higher-order constellations …

We find that the conventional 4th power and circular harmonic expansion (CHE) algorithms,
which are originally devised for blind frequency offset estimation (FOE) in the uniform M …

This chapter aims to provide a comprehensive picture of the impact of fiber nonlinear effects
on modern coherent wavelength division multiplexing (WDM) systems' performance. First …

Generalized mutual information (GMI) has been comprehensively studied in
multidimensional constellation and probabilistic-shaped (PS) constellation together with …

Flexible-grid elastic optical networks (EONs) have recently been widely deployed to support
the growing demand for bandwidth-intensive applications. For cost-efficient scaling of the …

Flexible-grid Elastic Optical Networks (EONs) have been widely deployed in recent years to
support the growing demand for bandwidth-intensive applications. To address this cost …