Sequence-selection-based constellation shaping for nonlinear channels

S Civelli, E Forestieri, M Secondini - Journal of Lightwave …, 2024 - opg.optica.org
Probabilisticshaping is, nowadays, a pragmatic and popular approach to improve the
performance of coherent optical fiber communication systems. In the linear regime, the …

Probabilistic amplitude shaping and nonlinearity tolerance: Analysis and sequence selection method

MT Askari, L Lampe, J Mitra - Journal of Lightwave Technology, 2023 - ieeexplore.ieee.org
Probabilistic amplitude shaping (PAS) is a practical means to achieve a shaping gain in
optical fiber communication. However, PAS and shaping in general also affect the signal …

Information rates for channels with fading, side information and adaptive codewords

G Kramer - Entropy, 2023 - mdpi.com
Generalized mutual information (GMI) is used to compute achievable rates for fading
channels with various types of channel state information at the transmitter (CSIT) and …

Practical implementation of sequence selection for nonlinear probabilistic shaping

S Civelli, E Forestieri… - 2023 Optical Fiber …, 2023 - ieeexplore.ieee.org
Practical Implementation of Sequence Selection for Nonlinear Probabilistic Shaping Page 1
Practical Implementation of Sequence Selection for Nonlinear Probabilistic Shaping S …

Information rates of successive interference cancellation for optical fiber

A Jäger, G Kramer - arXiv preprint arXiv:2403.15240, 2024 - arxiv.org
Successive interference cancellation (SIC) is used to approach the achievable information
rates (AIRs) of joint detection and decoding for long-haul optical fiber links. The AIRs of …

BICM-compatible Rate Adaptive Geometric Constellation Shaping Using Optimized Many-to-one Labeling

MP Yankov, S Swain, O Jovanovic… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
In this paper, a rate adaptive geometric constellation shaping (GCS) scheme which is fully
backward-compatible with existing state of the art bit-interleaved coded modulation (BICM) …

Sequence Selection With Dispersion-Aware Metric for Long-Haul Transmission Systems

J Liu, É Awwad, H Hafermann… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
Sequence selection (SS) potentially offers a pragmatic way to unlock nonlinear shaping
gains in coherent optical fiber communications beyond those offered by probabilistic …

Sphere Shaping with Dispersion-Aware Sequence Selection for Long-Haul Transmission Systems

J Liu, É Awwad, H Hafermann, Y Jaouën - arXiv preprint arXiv:2312.13780, 2023 - arxiv.org
We introduce a nonlinear-tolerant design approach to Enumerative Sphere Shaping (ESS)
for $ M $-QAM signaling, utilizing sequence selection techniques based on a sign …

Nonlinear Probabilistic Constellation Shaping with Sequence Selection

S Civelli, E Forestieri, M Secondini - arXiv preprint arXiv:2307.13292, 2023 - arxiv.org
Probabilistic shaping is a pragmatic approach to improve the performance of coherent
optical fiber communication systems. In the nonlinear regime, the advantages offered by …

Perturbation-based Sequence Selection for Probabilistic Amplitude Shaping

MT Askari, L Lampe - arXiv preprint arXiv:2407.09006, 2024 - arxiv.org
We introduce a practical sign-dependent sequence selection metric for probabilistic
amplitude shaping and propose a simple method to predict the gains in signal-to-noise ratio …