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On the benefits of multi-path recovery in flexgrid optical networks
dc.contributor.author | Castro Casales, Alberto |
dc.contributor.author | Velasco Esteban, Luis Domingo |
dc.contributor.author | Comellas Colomé, Jaume |
dc.contributor.author | Junyent Giralt, Gabriel |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament de Teoria del Senyal i Comunicacions |
dc.contributor.other | Universitat Politècnica de Catalunya. Departament d'Arquitectura de Computadors |
dc.date.accessioned | 2014-12-11T16:13:51Z |
dc.date.created | 2014-12-01 |
dc.date.issued | 2014-12-01 |
dc.identifier.citation | Castro, A. [et al.]. On the benefits of multi-path recovery in flexgrid optical networks. "Photonic network communications", 01 Desembre 2014, vol. 28, núm. 3, p. 251-263. |
dc.identifier.issn | 1387-974X |
dc.identifier.uri | http://hdl.handle.net/2117/25006 |
dc.description.abstract | We propose a new recovery scheme, called multi-path recovery (MPR), specifically designed for flexgrid-based optical networks. It combines protection and restoration schemes to jointly recover, in part or totally, the bitrate requested by client demands in case of failure. We define the bitrate squeezed recovery optimization (BRASERO) problem to maximize the amount of bitrate which is recovered in case of failure of any single fiber link; a mixed integer linear programming formulation for the BRASERO problem is provided. However, since their exact solutions become impractical when real-sized network and traffic instances are considered, we develop a heuristic algorithm which provides a much better trade-off between optimality and complexity. Exhaustive numerical experiments carried out over realistic network topologies and traffic scenarios show that the efficiency of the proposed MPR scheme approaches that of restoration while providing recovery times as short as protection schemes. |
dc.format.extent | 13 p. |
dc.language.iso | eng |
dc.subject | Àrees temàtiques de la UPC::Enginyeria de la telecomunicació::Telecomunicació òptica |
dc.subject.lcsh | Optical communications |
dc.subject.other | Flexgrid optical networks |
dc.subject.other | Multi-path Recovery |
dc.subject.other | Bitrate squeezing |
dc.subject.other | Network optimization |
dc.subject.other | Disjoint paths |
dc.subject.other | Mesh networks |
dc.subject.other | Restoration |
dc.subject.other | Protection |
dc.subject.other | Allocation |
dc.title | On the benefits of multi-path recovery in flexgrid optical networks |
dc.type | Article |
dc.subject.lemac | Comunicacions òptiques |
dc.contributor.group | Universitat Politècnica de Catalunya. GCO - Grup de Comunicacions Òptiques |
dc.identifier.doi | 10.1007/s11107-014-0443-5 |
dc.description.peerreviewed | Peer Reviewed |
dc.rights.access | Restricted access - publisher's policy |
local.identifier.drac | 15341872 |
dc.description.version | Postprint (published version) |
dc.date.lift | 10000-01-01 |
local.citation.author | Castro, A.; Velasco, L.; Comellas, J.; Junyent, G. |
local.citation.publicationName | Photonic network communications |
local.citation.volume | 28 |
local.citation.number | 3 |
local.citation.startingPage | 251 |
local.citation.endingPage | 263 |
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