dc.contributor
Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors
dc.contributor
Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions
dc.contributor
Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques
dc.contributor.author
Castro Casales, Alberto
dc.contributor.author
Ruiz Ramírez, Marc
dc.contributor.author
Velasco Esteban, Luis Domingo
dc.contributor.author
Junyent Giralt, Gabriel
dc.contributor.author
Comellas Colomé, Jaume
dc.identifier
Castro, A. [et al.]. Path-based recovery in flexgrid optical networks. A: International Conference on Transparent Optical Networks. "ICTON 2012: 14th International Conference on Transparent Optical Networks: 2nd-5th July, 2012, University of Warwick, Coventry, UK". Warwick, Coventry: IEEE, 2012, p. 1-4.
dc.identifier
978-1-4673-2227-0
dc.identifier
https://hdl.handle.net/2117/19250
dc.identifier
10.1109/ICTON.2012.6254479
dc.description.abstract
With the advent of flexgrid optical networks, the rigid wavelength-division multiplexing (WDM) technology
will be enhanced by providing better spectrum efficiency and flexibility. In those future flexible optical
networks, optical connections (lightpaths) can allocate a flexible number of spectrum slices, also known as
frequency slots, so to match better with its requested bitrate. In this paper, we propose to take advantage of this
flexible spectrum allocation in recovery mechanisms to be triggered when a failure occurs to provide recovery of
part of the requested bitrate, i.e. the allocated spectrum by backup lightpaths could be lower than that of the
working lightpaths provided that client service level agreements are fulfilled. This reduction in the recovered
bitrate (bitrate squeezing) allows optimizing the use of network capacity. We propose path-based recovery
alternatives, based on protection and restoration, specially designed for flexgrid networks. The performance of
the proposed recovery mechanisms is exhaustively evaluated on a national reference network
dc.description.abstract
Peer Reviewed
dc.description.abstract
Postprint (published version)
dc.format
application/pdf
dc.relation
http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=6254479&contentType=Conference+Publications&sortType%3Dasc_p_Sequence%26filter%3DAND(p_IS_Number%3A6253703)%26rowsPerPage%3D100
dc.rights
Restricted access - publisher's policy
dc.subject
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica::Fibra òptica
dc.subject
Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica
dc.subject
Data transmission systems
dc.subject
Computer networks
dc.subject
Bitrate squeezed recovery
dc.subject
Flexgrid Optical Networks
dc.subject
Network Optimization
dc.subject
Ordinadors, Xarxes d'
dc.subject
Dades -- Transmissió
dc.title
Path-based recovery in flexgrid optical networks
dc.type
Conference report
