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相关论文: A GN/EGN-Model Real-Time Closed-Form Formula Teste…

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We derived an approximate non-linear interference (NLI) closed-form model (CFM), capable of handling a very broad range of optical WDM system scenarios. We tested the CFM over 8500 randomized C-band WDM systems, of which 6250 were…

信号处理 · 电气工程与系统科学 2023-07-19 Mahdi Ranjbar Zefreh , Fabrizio Forghieri , Stefano Piciaccia , Pierluigi Poggiolini

Efficient evaluation of nonlinearity in modern coherent optical telecommunication networks is necessary for design, optimization and management. The original GN model formula can not be used in real time applications due to long processing…

信号处理 · 电气工程与系统科学 2019-07-23 Mahdi Ranjbar Zefreh , Pierluigi Poggiolini

An unprecedented comparison of closed-form incoherent GN (InGN) models is presented with heterogeneous spans and partially loaded links in elastic optical networks. Results reveal that with accumulated dispersion correction and modulation…

网络与互联网体系结构 · 计算机科学 2022-10-19 Farhad Arpanaei , M. Ranjbar Zefreh , Jose A. Hernandez , Andrea Carena , David Larrabeiti

The GN model of non-linear fiber propagation has been shown to overestimate the variance of non-linearity due to the signal Gaussianity approximation, leading to maximum reach predictions for realistic optical systems which may be…

光学 · 物理学 2015-06-18 P. Poggiolini , G. Bosco , A. Carena , V. Curri , Y. Jiang , F. Forghieri

The GN model of non-linear fiber propagation has been shown to overestimate the variance of non-linearity due to the signal Gaussianity approximation, leading to maximum reach predictions for typical optical systems which may be pessimistic…

光学 · 物理学 2015-03-16 P. Poggiolini , Y. Jiang , A. Carena , F. Forghieri

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…

光学 · 物理学 2014-06-09 A. Carena , G. Bosco , V. Curri , Y. Jiang , P. Poggiolini , F. Forghieri

Ultrafast accurate physical layer models are essential for designing, optimizing and managing ultrawideband optical transmission systems. We present a closed-form GN/EGN model based on a recent analytical breakthrough, improving…

信号处理 · 电气工程与系统科学 2025-04-08 Pierluigi Poggiolini , Yanchao Jiang

We present a comprehensive closed-form GN/EGN model supporting ultra-wide-band systems spanning 50 THz of optical bandwidth. We show a case-study of 10x100km of SMF where we gradually increase the number of channels across the C,L,S,U,E…

系统与控制 · 电气工程与系统科学 2022-07-05 Pierluigi Poggiolini , Mahdi Ranjbar-Zefreh

We investigate C+L+S long-haul systems using a closed-form GN/EGN non-linearity model. We perform accurate launch power and Raman pump optimization. We show a potential 4x throughput increase over legacy C-band systems in 1000 km links,…

信号处理 · 电气工程与系统科学 2024-07-15 Y. Jiang , J. Sarkis , A. Nespola , F. Forghieri , S. Piciaccia , A. Tanzi , M. Ranjbar Zefreh , P. Poggiolini

Ultrafast and accurate physical layer models are essential for designing, optimizing and managing ultra-wideband optical transmission systems. We present a closed-form GN/EGN model, named Polynomial Closed-Form Model (PCFM), improving…

信号处理 · 电气工程与系统科学 2025-09-01 Pierluigi Poggiolini , Yanchao Jiang , Yifeng Gao , Fabrizio Forghieri

In this paper, we present a novel closed-form model (CFM) for accurate and fast evaluation of nonlinear interference in modern ultrawideband coherent optical fiber communication systems. Starting from the Gaussian noise model (GN model),…

信号处理 · 电气工程与系统科学 2020-06-08 Mahdi Ranjbar Zefreh , Pierluigi Poggiolini

The accuracy of a recently-developed closed-form GN nonlinear interference model is evaluated in experimental 1065 km S+C+L band WDM transmission with backward Raman pumping. The model accurately estimates the nonlinear interference and ASE…

Data from direct numerical simulations of turbulent flows are commonly used to train neural network-based models as subgrid closures for large-eddy simulations; however, models with low a priori accuracy have been observed to fortuitously…

流体动力学 · 物理学 2024-09-02 Mark Benjamin , Gianluca Iaccarino

Linearly transforming stimulus representations of deep neural networks yields high-performing models of behavioral and neural responses to complex stimuli. But does the test accuracy of such predictions identify genuine representational…

神经元与认知 · 定量生物学 2026-01-05 Itamar Avitan , Tal Golan

This paper focuses on inhomogeneous quadratic tests, which involve the sum of a dependent non-central chi-square with a Gaussian random variable. Unfortunately, no closed-form expression is available for the statistical distribution of the…

应用统计 · 统计学 2018-10-12 Daniel Egea-Roca , Gonzalo Seco-Granados , José A. López-Salcedo

We report on a fully closed-form approximation of the GN model for Nyquist WDM systems that extends the range of applicability of previously available formulas to values of fiber loss and span loss that were not previously covered. In…

信号处理 · 电气工程与系统科学 2021-11-09 Mahdi Ranjbar Zefreh , Pierluigi Poggiolini

Network structure is growing popular for capturing the intrinsic relationship between large-scale variables. In the paper we propose to improve the estimation accuracy for large-dimensional factor model when a network structure between…

统计方法学 · 统计学 2020-01-30 Long Yu , Yong He , Xinsheng Zhang , Ji Zhu

Graph neural network architectures are advantageous for predicting core-electron binding energies which depend on local bond environment effects, as the number of message passing layers defines the topological (bond) radius of the model's…

Complex phenomena in engineering and the sciences are often modeled with computationally intensive feed-forward simulations for which a tractable analytic likelihood does not exist. In these cases, it is sometimes necessary to estimate an…

统计方法学 · 统计学 2020-06-18 Niccolò Dalmasso , Ann B. Lee , Rafael Izbicki , Taylor Pospisil , Ilmun Kim , Chieh-An Lin

Verifying safety of neural network control systems that use images as input is a difficult problem because, from a given system state, there is no known way to mathematically model what images are possible in the real-world. We build on…

机器学习 · 计算机科学 2025-04-30 Feiyang Cai , Chuchu Fan , Stanley Bak
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