# On the Accuracy of the GN-Model and on Analytical Correction Terms to Improve It

@article{Carena2014OnTA, title={On the Accuracy of the GN-Model and on Analytical Correction Terms to Improve It}, author={Andrea Carena and Gabriella Bosco and Vittorio Curri and Y. Jiang and Pierluigi Poggiolini and Fabrizio Forghieri}, journal={arXiv: Optics}, year={2014} }

The GN-model has been proposed as an approximate but sufficiently accurate tool for predicting uncompensated optical coherent transmission system performance, in realistic scenarios. For this specific use, the GN-model has enjoyed substantial validation, both simulative and experimental. Recently, however, it has been pointed out that its predictions, when used to obtain a detailed picture of non-linear interference (NLI) noise accumulation along a link, may be affected by a substantial NLI…

## 6 Citations

### A Simple and Effective Closed-Form GN Model Correction Formula Accounting for Signal Non-Gaussian Distribution

- EngineeringJournal of Lightwave Technology
- 2015

The GN model of nonlinear fiber propagation has been shown to overestimate the variance of nonlinearity due to the signal Gaussianity approximation, leading to maximum reach predictions for realistic…

### The GN-Model of Fiber Non-Linear Propagation and its Applications

- Computer ScienceJournal of Lightwave Technology
- 2014

This paper tries to gather the recent results regarding the Gaussian-noise model definition, understanding, relations versus other models, validation, limitations, closed form solutions, approximations and, in general, its applications and implications in link analysis and optimization, also within a network environment.

### Analytical Modeling of Nonlinear Fiber Propagation for Four Dimensional Symmetric Constellations

- PhysicsJournal of Lightwave Technology
- 2021

An analytical model is derived to quantify the impact of Kerr nonlinearity on such 4D spaces, taking the interpolarization dependency into account, and shows that the EGN model may inaccurately estimate the nonlinear interference of 4D formats.

### Quality-of-Transmission Estimation in Physical Impairment Aware Flexible Optical Networks

- Physics
- 2020

The nonlinear interference of neighboring channels (interferer) during transmission on a channel under test is studied and the modulation format of the interferer, the accumulated chromatic dispersion, the span length and channel spacing are identified as the parameter influencing the generation of NLIN in the context of flexible optical networks.

### A General Analytical Model of Nonlinear Fiber Propagation in the Presence of Kerr Nonlinearity and Stimulated Raman Scattering

- Physics, Computer Science
- 2019

A general model is introduced that accurately describes the effect of SRS on the NLI power over a wide range of scenarios, including low-cardinality modulation formats, and medium-to-low symbol-rate transmitted channels.

### An Improved Model of Nonlinear Fiber Propagation in the Presence of Kerr Nonlinearity and Stimulated Raman Scattering.

- Physics, Computer Science
- 2020

A modulation-format-dependent model, accounting for an enhanced link function, valid for non-identical spans where the fiber span loss and SRS gain/loss are not necessarily compensated for by the amplifier at the end of each span is proposed.

### Neural Network based Linear and Nonlinear Noise Estimation

- Computer Science
- 2018

This paper estimates the linear and nonlinear SNR from the received signal by obtaining features of two distinctive effects: nonlinear phase noise and second-order statistical moments and trains a small neural network to estimate the SNRs from the extracted features.

### Extending Fibre Nonlinear Interference Power Modelling to Account for General Dual-Polarisation 4D Modulation Formats

- PhysicsEntropy
- 2020

A step-by-step mathematical derivation of the extension of existing NLI models to the class of arbitrary DP-4D modulation formats, which follows the one of the popular enhanced Gaussian noise model, albeit dropping most assumptions on the geometry and statistic of the transmitted 4D modulation format.

### List-Encoding CCDM: A Nonlinearity-Tolerant Shaper Aided by Energy Dispersion Index

- Computer ScienceJournal of Lightwave Technology
- 2022

A new shaper architecture is proposed to decrease the EDI of transmitted symbols and thus, increase the signal-to-noise ratio (SNR) and this shaper the list-encoding constant-composition distribution matcher (L-CCDM).

### Temporal Energy Analysis of Symbol Sequences for Fiber Nonlinear Interference Modelling via Energy Dispersion Index

- Computer ScienceJournal of Lightwave Technology
- 2021

The temporal energy behavior of symbol sequences is investigated, and a new metric called energy dispersion index (EDI) is introduced that captures the time-varying statistical properties of symbol energies.

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### A Simple and Effective Closed-Form GN Model Correction Formula Accounting for Signal Non-Gaussian Distribution

- EngineeringJournal of Lightwave Technology
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The GN model of nonlinear fiber propagation has been shown to overestimate the variance of nonlinearity due to the signal Gaussianity approximation, leading to maximum reach predictions for realistic…

### The GN-Model of Fiber Non-Linear Propagation and its Applications

- Computer ScienceJournal of Lightwave Technology
- 2014

This paper tries to gather the recent results regarding the Gaussian-noise model definition, understanding, relations versus other models, validation, limitations, closed form solutions, approximations and, in general, its applications and implications in link analysis and optimization, also within a network environment.

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