Results 251 to 260 of about 134,181 (290)

Optical performance monitoring in elastic optical OFDM networks

2015 International Conference on Photonics in Switching (PS), 2015
Optical performance monitoring (OPM) is a crucial element in network management, in order to assure the quality of the optical signals at various intermediate and destination nodes. In future elastic optical network, the network operation is more adaptive and reconfigurable.
Calvin C K Chan, Kam-Hon Tse, Tianwai Bo, Shuang Gao   +3 more
openaire   +1 more source

Scalable elastic optical path networking models

2016 18th International Conference on Transparent Optical Networks (ICTON), 2016
In order to face the steady growth of the optical networks, network operators are now moving to elastic optical networking, with the challenge of optimizing the spectrum usage through the so-called routing and spectrum assignment (RSA) problem. It is a much more difficult problem than the classical routing and wavelength assignment (RWA) problem, for ...
Brigitte Jaumard, Maryam Daryalal
openaire   +1 more source

Optimal Provisioning of Elastic Optical Networks

2020 22nd International Conference on Transparent Optical Networks (ICTON), 2020
The explosive growth of emerging applications and networking paradigms (e.g., Internet of Things (Iot), Software Defined Network (SDN), 5G slicing) leads to the rapid development of elastic optical networks (EON) for the next generation backbone networks.
Quang Anh Nguyen, Brigitte Jaumard
openaire   +1 more source

Flexible Modulation for Elastic Optical Networks

Asia Communications and Photonics Conference 2015, 2015
We present and compare state-of-the-art programmable modulation and coding techniques that efficiently utilize bandwidth and SNR on emerging elastic optical networks.
Noman L. Swenson, Damian Morero
openaire   +1 more source

Complex Elastic Optical Network Simulator (CEONS)

2015 17th International Conference on Transparent Optical Networks (ICTON), 2015
This paper presents the features of an advanced software simulator for the Elastic Optical Network (EON) - Complex Elastic Optical Networks Simulator (CEONS). The CEONS is as a test environment for solving three main issues addressed in EON: Routing and Spectrum Assignment (RSA) problems; Routing, Modulation and Spectrum Assignment (RMSA) problems, and
Michal Aibin, Mateusz Blazejewski
openaire   +1 more source

QoT Aware Adaptive Elastic Optical Networks

Optical Fiber Communication Conference, 2017
Operating Elastic Optical Networks with low margins increases their efficiency but suffers from soft-failures, rendering the QoT of lightpaths unacceptable. We present a toolkit that leverages the flexibility dimensions to survive against QoT problems.
Sartzetakis, I., Christodoulopoulos, K., Varvarigos, E.   +2 more
openaire   +1 more source

Multilayer restoration in elastic optical networks

2015 International Conference on Optical Network Design and Modeling (ONDM), 2015
Optical restoration is known to be an effective way to save on network overall cost, using the same available equipment previously used before the failure occurs. However, when backup paths are too long, some regenerators can be required bringing into question the expected gain. In this work, we show that transponder datarate elasticity is a successful
Amar, D., Le Rouzic, Esther, Brochier, Nicolas, Lepers, Catherine   +3 more
openaire   +2 more sources

Cross-Layer Adaptive Elastic Optical Networks

Journal of Optical Communications and Networking, 2018
Optical networks are designed to be operated statically: lightpaths are provisioned for uninterrupted operation for several years using high margins to anticipate the deterioration of their quality of transmission (QoT) from various factors (equipment aging, malfunctioning, and maintenance operations).
Sartzetakis, Ippokratis, Christodoulopoulos, Konstantinos, Varvarigos, Emmanuel   +2 more
openaire   +1 more source

Elastic optical networking: An operators perspective

2014 The European Conference on Optical Communication (ECOC), 2014
Although there is perhaps an acceptance that EON has benefits, there is a debate about whether a full flexgrid implementation is required to achieve those benefits. Current industry debate addressed in this paper relates to when is the most appropriate time for carriers to: (a) install flexgrid ready components, and (b) enable them and start using the ...
Juan Pedro Fernandez-Palacios, Victor Lopez, Beatriz Cruz, Oscar Gonzalez de Dios   +3 more
openaire   +1 more source

Elastic optical networks

2013
The current generation of optical networks based on a fixed wavelength grid and on fixed-rate transponders would impose relevant limitations for future transmission rates exceeding 100 Gb/s, thereby limiting the number of potential implementations and making a new generation of elastic optical networks (EON) necessary.
Bohn, Mark, Napoli, Antonio, D'errico, Antonio, Ferraris, Giuseppe, Gunkel, Matthias, Jimenez, Felipe, Fernandez-Palacios, Juan Pedro, Layec, Patricia, Zervas, Georgios, Amaya Gonzalez, Norberto, Simeonidou, Dimitra, Fischer, Johannes Karl, Nolle, Markus, Schubert, Colja, Sambo, Nicola, Cugini, Filippo, Castoldi, Piero, Svaluto Moreolo, Michela, M. Fabrega, Josep, Okonkwo, Chigo, Waardt, Huug de   +20 more
openaire   +2 more sources