Make-Before-Break Wavelength Defragmentation

Future optical networks, in particular Software Defined Optical Networks (SDONs), are expected to provide reconfigurable services while maintaining an efficient usage of wavelength resources. In this paper, we propose a Make-Before-Break (MBB) wavelength defragmentation process which minimizes the b...

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Bibliographic Details
Published inProceedings / International Conference on Transparent Optical Networks pp. 1 - 5
Main Authors Jaumard, Brigitte, Pouya, Hamed, Coudert, David
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.07.2018
Subjects
Bandwidth
Computational modeling
Fragmented Network
Integrated circuit modeling
Make Before Break Rerouting
Network Reconfiguration
Optical fiber networks
Optimization
Pricing
Routing and Wavelength Assignment
Seamless Defragmentation
System recovery
Wavelength Defragmentation
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ISSN2161-2064
DOI10.1109/ICTON.2018.8473893

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Summary:Future optical networks, in particular Software Defined Optical Networks (SDONs), are expected to provide reconfigurable services while maintaining an efficient usage of wavelength resources. In this paper, we propose a Make-Before-Break (MBB) wavelength defragmentation process which minimizes the bandwidth requirement of the resulting provisioning. We next compare the latter provisioning with a minimum bandwidth provisioning that is not subject to MBB.The resulting solution process is thoroughly tested on various data and network instances. Numerical experiments show that, on average, the best seamless lightpath rerouting is never more than 5% away (less than 1% on average) from an optimal lightpath provisioning.
ISSN:2161-2064
DOI:10.1109/ICTON.2018.8473893