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Títol: On the offline physical layer impairment aware RWA algorithms in transparent optical networks: state-of-the-art and beyond
Autor: Azodolmolky, Siamak
Pointurier, Yvan
Klinkowski, Miroslaw
Marín Tordera, Eva
Careglio, Davide
Solé Pareta, Josep
Angelou, Marianna
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; Universitat Politècnica de Catalunya. ANA - Grup d'Arquitectures Avançades de Xarxes
Editorial: IEEE Press and Wiley
Matèries: Àrees temàtiques de la UPC::Enginyeria electrònica i telecomunicacions::Telecomunicació òptica
Optical communications
Comunicacions òptiques
Tipus de document: Conference report
Descripció: In transparent optical networks with no regeneration, the problem of capacity allocation to traffic demands is called "Roting and Wavelength Assignment". Much work on this topic recently has focused on the dynamic case, whereby demands arrive and must be served in real-time. In addition, due to lack of regeneration, physical impairments accumulate as light propagates and QoT may become inappropiate (e.g., too high Bit Error Rate). Considering the physical layer impairments in the network planning phase gives rise to a class of RWA algorithms: offline Physical Layer Impairment Aware- (PLIA-)RWA. This paper makes a survey of such algorithms, proposes a taxonomy, and a comparison between these algorithms for common metrics. We also propose a novel offline PLIA-RWA algorithm, called POLIO-RWA, and show through simulations that it decreases blocking rate compared with other PLIA-RWA algorithms.
Postprint (published version)
Altres identificadors i accés: Azodolmolky, S. [et al.]. On the offline physical layer impairment aware RWA algorithms in transparent optical networks: state-of-the-art and beyond. A: Optical Network Design and Modeling. "13th Conference on Optical Network Design and Modeling (ONDM2009)". Braunschweig: IEEE Press and Wiley, 2009.
Disponible al dipòsit:E-prints UPC

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