Title:
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A novel offline physical layer impairments aware RWA algorithm with dedicated path protection consideration
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Author:
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Azodolmolky, Siamak; Klinkowski, Miroslaw; Pointurier, Yvan; Angelou, Marianna; Careglio, Davide; Solé Pareta, Josep; Tomkos, Ioannis
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions i Arquitectures de Banda Ampla |
Abstract:
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Physical layer impairments accumulate as light propagates through a lightpath in the transparent optical networks. Therefore, it is possible to provision a lightpath, while its quality of transmission (QoT) does not meet the required threshold. Considering
the physical layer impairments in the network planning phase gives rise to a set of offline Impairments Aware Routing and
Wavelength Assignment (IA-RWA) algorithms. There are very few offline IA-RWA algorithms that consider dedicated path protection demands. In this work we propose a novel offline IA-RWA algorithm, called Rahyab and perform a comparative performance evaluation study, which considers two enhanced algorithms from the literature. Simulation results indicates that demand pre-processing,
diverse routing, and adaptive wavelength assignment are the main reasons of lower blocking rate of Rahyab algorithm compared
to the selected algorithms. |
Abstract:
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Peer Reviewed |
Subject(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica -Optical communications -- Quality control -Dedicated path protection -Impairments aware RWA -Physical layer impairments -Routing and wavelength assignment -Xarxes de telecomunicació òptiques -- Control de qualitat |
Rights:
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Document type:
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Article - Published version Article |
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