Investigation of cost, power, and spectral efficiency in fixed- and flexi-grid networks [PDF]
Journal of Communications and Information Networks, 2017 With the steady growth of traffic volume in core networks, it is predicted that future optical network communication will be constrained mainly by cost and power consumption. Thus, for Internet sustainability, it will be necessary to ensure cost and power efficiency in optical networks.
Sridhar Iyer, Shree Prakash Singh
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Overarching Control of Flexi Grid Optical Networks: Interworking of GMPLS and OpenFlow Domains [PDF]
Journal of Lightwave Technology, 2015 © 2015 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component
Ramon Casellas +7 more
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Energy-aware virtual network embedding in flexi-grid networks
Optics Express, 2017 Network virtualization technology has been proposed to allow multiple heterogeneous virtual networks (VNs) to coexist on a shared substrate network, which increases the utilization of the substrate network. Efficiently mapping VNs on the substrate network is a major challenge on account of the VN embedding (VNE) problem.
Rongping Lin +3 more
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Interworking of GMPLS and OpenFlow domains: Overarching control of flexi grid optical networks [PDF]
2014 The European Conference on Optical Communication (ECOC), 2014 Both GMPLS and OpenFlow are positioned to become the pillars of a dynamic control plane for optical transport networks, each with its own strengths and weaknesses. This paper summarizes both approaches and discusses potential SDN interworking architectures.
Ramon Casellas +6 more
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Efficient transport of time-varying IP traffic in flexi-grid optical networks [PDF]
2014 22nd Signal Processing and Communications Applications Conference (SIU), 2014 Frequency slot width selection in flexi-grid optical networks refers to the process of online update of the slot width of the channel, according to time-varying traffic demands. Since slot width updates are associated with signaling costs, it is common to limit the rate of updates.
Caglar Tunc, Nail Akar
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Control plane solutions for sliceable bandwidth transceiver configuration in flexi-grid optical networks [PDF]
IEEE Communications Magazine, 2016 In EONs, the establishment of flexi-grid optical connections requires configuring both BVTs and bandwidth variable cross-connects. Such configuration has to be performed through proper control plane architecture and extensions, accounting for the client signal data rate, the required modulation format, the adopted forwarding error correction mechanisms,
Ricardo Martínez 0001 +6 more
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Experimental Validation of Transport SDN Restoration of Signal-Degraded Connections in Flexi-Grid Networks [PDF]
Optical Fiber Communication Conference, 2018 We validate experimentally the integration of a PCE-based T-SDN controller with an OAM Handler to restore signal-degraded flexi-grid connections. A distributed monitoring system is adopted where a RSMA algorithm exploits benefits of elastic optical networks.
Martínez, R. +8 more
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Control Plane architectures for Flexi-Grid Networks
Optical Fiber Communication Conference, 2017 Elastic optical networks are based on a flexible allocation of the spectrum and configurable transponders. The control architecture is key to unlock their potential. This paper presents the architectural choices, including GMPLS, SDN and TAPI.
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A Grid Service Infrastructure for Mobile Devices [PDF]
, 2005 One of the visions of Grid computing is to access computational resources automatically on demand to deliver the services required with appropriate quality. Because mobile devices are now increasingly common, an infrastructure is required to allow mobile
Guan, Tao +8 more
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Imprecise Markov Models for Scalable and Robust Performance Evaluation of Flexi-Grid Spectrum Allocation Policies [PDF]
IEEE Transactions on Communications, 2018 16 pages, 7 figures, 3 ...
Alexander Erreygers +3 more
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