Results 21 to 30 of about 5,237,041 (302)

Optical Grooming in OFDM-Based Elastic Optical Networks [PDF]

open access: yesOptical Fiber Communication Conference, 2012
We propose a novel optical grooming approach to aggregate and distribute traffic directly at the optical level in OFDM-based elastic optical networks. Significant transmitter and spectrum saving is achieved compared to non-grooming scenario.
Zhang, Guoying   +2 more
openaire   +2 more sources

Spectrum-Convertible BVWXC Placement in OFDM-Based Elastic Optical Networks

open access: yesIEEE Photonics Journal, 2017
Spectrum conversion can improve the performance of orthogonal frequency division multiplexing (OFDM)-based elastic optical networks (EONs) by relaxing the continuity constraint and consequently reducing connection request blocking probability during ...
Mohammad Hadi, Mohammad Reza Pakravan
doaj   +1 more source

On the Filter Narrowing Issues in Elastic Optical Networks [PDF]

open access: yesJournal of Optical Communications and Networking, 2016
This paper describes the problematic filter narrowing effect in the context of next-generation elastic optical networks. First, three possible scenarios are introduced: the transition from an actual fixed-grid to a flexi-grid network, the generic full flexi-grid network, and a proposal for a filterless optical network.
Josep M. Fàbrega   +18 more
openaire   +5 more sources

Impact of Elastic Optical Paths That Adopt Distance Adaptive Modulation to Create Efficient Networks [PDF]

open access: yes, 2012
We propose optical path routing and frequency slot assignment algorithms that can make the best use of elastic optical paths and the capabilities of distance adaptive modulation.
TAKAGI, Tatsumi   +5 more
core   +1 more source

Integrated VONE Scheme Over Resource-Virtualized Elastic Optical Networks

open access: yesIEEE Access, 2019
To eliminate the ossification of optical infrastructure and adapt to the high-performance Internet applications, optical network virtualization is an important enabler to offer each application type a dedicated virtual optical network (VON).
Min Zhu   +4 more
doaj   +1 more source

A Learning-Automata-Based Congestion-Aware Scheme for Energy-Efficient Elastic Optical Networks

open access: yesIEEE Access, 2020
The flexible nature of elastic optical networks (EONs) effectively uses spectral resources for optical communication by allocating the minimum required bandwidth to network connections.
Georgia A. Beletsioti   +4 more
doaj   +1 more source

Energy-Efficient Survivable Grooming in Software-Defined Elastic Optical Networks

open access: yesIEEE Access, 2017
Survivability in the OpenFlow-based software-defined elastic optical networks (SD-EONs) are more challenging than that in the conventional optical networks because failures can affect control plane operations.
Jingjing Wu, Zhaolong Ning, Lei Guo
doaj   +1 more source

Signal Overlap for Elastic Optical Networks

open access: yesJournal of Lightwave Technology, 2016
In Elastic Optical Networks, advanced transmission techniques based on coherent detection strategies have been proposed and exploited to provide high flexibility in resource allocation. So far, these techniques have assumed the constraint of each optical signal being transmitted along a dedicated frequency slot, by carefully avoiding frequency overlap ...
Foggi T., Cugini F.
openaire   +3 more sources

Distributed Sub-Tree-Based Optical Multicasting Scheme in Elastic Optical Data Center Networks

open access: yesIEEE Access, 2018
The sub-tree-based optical multicasting scheme provides a spectrum-efficient approach to providing emerging multicast services in optical data center networks.
Xin Li   +4 more
doaj   +1 more source

Routing Core and Spectrum Allocation Algorithm for Inter-Core Crosstalk and Energy Efficiency in Space Division Multiplexing Elastic Optical Networks

open access: yesIEEE Access, 2020
Elastic optical networks (EONs) and space-division multiplexing (SDM) have emerged as a promising technology to accommodate the high-capacity and dynamic bandwidth demands of next-generation network.
Huanlin Liu, Qile Xiong, Yong Chen
doaj   +1 more source

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