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 …

Introducing 4D geometric shell sha** for mitigating nonlinear interference noise

S Goossens, YC Gültekin, O Vassilieva… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Four dimensional geometric shell sha** (4D-GSS) is introduced as an approach for
closing the nonlinearity-caused sha** gap. This format is designed at the spectral …

Huffman-coded sphere sha** for extended-reach single-span links

P Skvortcov, I Phillips, W Forysiak… - IEEE Journal of …, 2021 - ieeexplore.ieee.org
Huffman-coded sphere sha** (HCSS) is an algorithm for finite-length probabilistic
constellation sha**, which provides nearly optimal energy efficiency at low …

Parallel bisection-based distribution matching for nonlinearity-tolerant probabilistic sha** in coherent optical communication systems

M Fu, Q Liu, H Lun, H Jiang, Y Wu, X Liu… - Journal of Lightwave …, 2021 - ieeexplore.ieee.org
A nonlinearity-tolerant constant composition distribution matching (CCDM) scheme based
on a parallel bisection architecture is proposed. Compared with CCDM based on arithmetic …

Nonlinearity tolerant LUT-based probabilistic sha** for extended-reach single-span links

P Skvortcov, I Phillips, W Forysiak… - IEEE Photonics …, 2020 - ieeexplore.ieee.org
We propose Huffman-coded sphere sha** (HCSS) as a method for probabilistic
constellation sha** which provides improved tolerance to fiber nonlinearities in single …

Real-time FPGA investigation of interplay between probabilistic sha** and forward error correction

L Zhang, K Tao, W Qian, W Wang, J Liang… - Journal of Lightwave …, 2022 - opg.optica.org
In this work, we implement a complete probabilistic amplitude sha** (PAS) architecture on
a field-programmable gate array (FPGA) platform to study the interplay between probabilistic …

Nonlinearity aware bisection-based sphere sha** for optical digital subcarrier multiplexing systems

Z Gan, X Li, SJ Savory - Optics Express, 2022 - opg.optica.org
In this paper, a nonlinearity-tolerant sphere sha** is proposed based on the parallel
bisection structure. Compared to enumerative sphere sha** (ESS), the bisection-based …

On optimization and analysis of enumerative sphere sha** for short blocklengths

Y Chen, J Chen, W Li, M Zhang, D Liu… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
Enumerative sphere sha** (ESS) has drawn considerable attention in recent years,
yielding a practical solution for the application of probabilistic sha** in the short …

Multi-dimensional distribution matching with bit-level sha** for probabilistically shaped high order modulation formats

M Fu, Q Liu, Y Xu, H Jiang, X Zeng… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
In this paper, multi-dimensional distribution matching (MDDM) based on bit-level sha** is
proposed to implement probabilistic sha** (PS) for high order modulation formats. MDDM …

A low-complexity probabilistic amplitude sha** with short linear block codes

T Matsumine, T Koike-Akino… - IEEE Transactions on …, 2021 - ieeexplore.ieee.org
We propose a new probabilistic amplitude sha** (PAS) scheme based on short linear
block codes. In the proposed system, the capacity-approaching signal distribution is …