Results 291 to 300 of about 136,047 (338)

Optical datacenter networks with elastic optical switches

2017 IEEE International Conference on Communications (ICC), 2017
Four variants of the optical data center network architecture (DCN1 — DCN4) based on optical circuit switching and elastic optical switching elements are proposed. For each variant theoretical limits for non-blocking operation have been derived and proved.
Wojciech Kabacinski, Marek Michalski, Remigiusz Rajewski, Mariusz Zal   +3 more
openaire   +1 more source

Protection in elastic optical networks

IEEE Network, 2015
In this article, we analyze gains resulting from the use of EON architectures with special focus on transportation of cloud-ready and content-oriented traffic in the context of network resilience. EONs are a promising approach for future optical transport networks and, apart from improving the network spectral efficiency, bring such new capabilities as
Roza Goscien, Krzysztof Walkowiak, Miroslaw Klinkowski, Jacek Rak   +3 more
openaire   +1 more source

Spectrum-sliced elastic optical networking

2013 15th International Conference on Transparent Optical Networks (ICTON), 2013
Current communication environments present a wide range of traffic granularities, making it hard to use the optical spectrum efficiently under the WDM framework. In elastic networking, the WDM rigid frequency grid is replaced by a more flexible structure, in which the spectrum is organized in frequency slots, and each traffic flow is assigned to an ...
H. Waldman, R.C. Almeida, K.D.R. Assis, R.C. Bortoletto   +3 more
openaire   +1 more source

Elastic Optical Networks

2016
This chapter presents issues related to the optimization of Elastic Optical Networks (EONs). More specifically, several optimization problems that arise in EONs in the context of cloud computing and content-oriented networking requirements are formulated and discussed.
openaire   +2 more sources

Network Fragmentation Measure in Elastic Optical Networks

2019 SBFoton International Optics and Photonics Conference (SBFoton IOPC), 2019
The Elastic Optical Network (EON) with multirate transmission and supported by bandwidth-variable switching technologies has provided more efficient utilization of spectral resources, leading to improvement of the network throughput. However, EON experiences a higher degree of fragmentation than conventional fixed-grid networks because of the spectrum ...
L. H. Bonani, M. Forghani-elahabad, M. L. F. Abbade   +2 more
openaire   +1 more source

Virtual Network Allocation in Elastic Optical Networks

Latin America Optics and Photonics Conference, 2016
Network virtualization and elastic networks have emerged as a paradigm for cloud computing and a solution to the ever increasing traffic, respectively. We review virtual network allocation algorithms over elastic networks and identify open research issues.
Danilo Bórquez-Paredes, Alejandra Beghelli, Ariel Leiva   +2 more
openaire   +1 more source

All-Optical Traffic Grooming in Elastic Optical Network

Optical Fiber Communication Conference/National Fiber Optic Engineers Conference 2013, 2013
Novel architecture based on all-optical traffic grooming in optical node for elastic optical network is proposed. BER measurements experimentally demonstrate efficient adaptive switching and processing of variable fragmented traffic, leading to improved network scalability and efficiency.
Anis M. I., Amaya N., Zervas G., PINNA, SERGIO, SCAFFARDI, MIRCO, FRESI, Francesco, BOGONI, ANTONELLA, Nejabati R., Simeonidou D.   +8 more
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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
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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