Performance evaluation of light-tree schemes in flexgrid optical networks

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To access the full text documents, please follow this link: http://hdl.handle.net/2117/25060

dc.contributor	Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.contributor	Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques
dc.contributor.author	Ruiz Ramírez, Marc
dc.contributor.author	Velasco Esteban, Luis Domingo
dc.date	2014-10-01
dc.identifier.citation	Ruiz, M.; Velasco, L. Performance evaluation of light-tree schemes in flexgrid optical networks. "IEEE communications letters", 01 Octubre 2014, vol. 18, núm. 10, p. 1731-1734.
dc.identifier.citation	1089-7798
dc.identifier.citation	10.1109/LCOMM.2014.2352641
dc.identifier.uri	http://hdl.handle.net/2117/25060
dc.language.iso	eng
dc.relation	http://ieeexplore.ieee.org/xpl/articleDetails.jsp?arnumber=6884788
dc.rights	Attribution-NonCommercial-NoDerivs 3.0 Spain
dc.rights	info:eu-repo/semantics/openAccess
dc.rights	http://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telemàtica i xarxes d'ordinadors
dc.subject	Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fibra òptica
dc.subject	Optical fibers
dc.subject	Routers (Computer networks)
dc.subject	Light-trees
dc.subject	P2MP-RSA
dc.subject	Flexgrid networks
dc.subject	SBVT
dc.subject	Fibres òptiques
dc.subject	Encaminadors (Xarxes d'ordinadors)
dc.title	Performance evaluation of light-tree schemes in flexgrid optical networks
dc.type	info:eu-repo/semantics/publishedVersion
dc.type	info:eu-repo/semantics/article
dc.description.abstract	New applications require conveying huge bitrate from a source node to multiple destinations. As a result, point-to-multipoint (P2MP) connections need to be established on the optical layer. In this paper, the P2MP routing and spectrum allocation (RSA) problem is formally stated and modelled as an Integer Linear Program (ILP). Exhaustive numerical results show that creating several transparent sub-trees noticeably improves the performance obtained by serving the demand using one single tree. Moreover, cost savings from exploiting traffic asymmetry can be obtained by installing directed optical transponders consisting of one single module.
dc.description.abstract	Peer Reviewed

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