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Títol: A novel offline physical layer impairments aware RWA algorithm with dedicated path protection consideration
Autor: Azodolmolky, Siamak
Klinkowski, Miroslaw
Pointurier, Yvan
Angelou, Marianna
Careglio, Davide
Solé Pareta, Josep
Tomkos, Ioannis
Altres autors/autores: Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors; Universitat Politècnica de Catalunya. CBA - Sistemes de Comunicacions de Banda Ampla
Matèries: Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::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
Tipus de document: Article
Descripció: 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.
Peer Reviewed
Postprint (published version)
Altres identificadors i accés: Azodolmolky, S. [et al.]. A novel offline physical layer impairments aware RWA algorithm with dedicated path protection consideration. "Journal of lightwave technology", 15 Octubre 2010, vol. 28, núm. 20, p. 3029-3040.
Disponible al dipòsit:E-prints UPC

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