Título:
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Efficient spectrum assignment in elastic optical networks
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Autor/a:
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Comellas Colomé, Jaume; Calzada Salvia, Xavier; Junyent Giralt, Gabriel
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Otros autores:
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Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions; Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques |
Abstract:
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The Elastic Optical Network (EON) architecture has been proposed in response to the large capacity and diverse traffic granularity needs of the future Internet. By breaking the fixed-grid spectrum allocation of WDM networks, EONs increase the flexibility in terms of connection provisioning. The appropriate-sized optical spectrum is allocated to each connection depending on its requested bandwidth. The main weakness of EON, under dynamic traffic conditions, stems from spectrum fragmentation. This problem can be alleviated by introducing some order in the spectrum assignment process. Evenness in spectrum usage can be achieved by either limiting the size of the offered connections, or by using fixed bandwidth connections despite requests are of variable size. Based on the previous
considerations, some approaches that mitigate spectrum fragmentation are proposed. Benefits in network performance
achieved when applying these strategies are quantified by extensive simulations under different generated traffic conditions. |
Abstract:
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Peer Reviewed |
Materia(s):
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-Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fibra òptica -Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica -Optical communications -Optical fibers -Connection provisioning -Dynamic traffic conditions -Elastic optical networks -Extensive simulations -Routing and spectrum assignments -Spectrum allocation -Spectrum assignment -Traffic conditions -Comunicacions òptiques -Fibres òptiques |
Derechos:
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Tipo de documento:
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Artículo - Versión publicada Objeto de conferencia |
Editor:
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Institute of Electrical and Electronics Engineers (IEEE)
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