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dc.contributor.authorLo, Tse Yuen_US
dc.contributor.authorChen, Chienen_US
dc.contributor.authorChen, Ying Yuen_US
dc.date.accessioned2014-12-08T15:25:27Z-
dc.date.available2014-12-08T15:25:27Z-
dc.date.issued2005en_US
dc.identifier.isbn978-0-7803-9276-2en_US
dc.identifier.urihttp://hdl.handle.net/11536/17839-
dc.description.abstractAs the technology advances to increase the number of wavelengths in fiber links, multigranularity optical cross-connects (MG-OXCs) have emerged as a solution to reduce the manufacturing cost of the traditional optical cross-connects (OXCs). In this paper, we aim to provide an efficient fault-recovery protection scheme for the lightpaths in the MG-OXC networks. A segment-based protection scheme, called Tunnel Based Segment Protection (TSP) is proposed to recover the communications interrupted by a fiber cut. TSP first allocates all the tunnels off-line according to the historical traffic matrix and then starts to serve the incoming requests. When allocating a tunnel, a backup tunnel is always allocated as well. Consequently, a lightpath is naturally divided into segments according to the switching types along the path. Therefore, after a working path is found for a connection request, only a shared backup path for those segments in the corresponding wavelength-switching layers need to be found. In addition, TSP utilizes wavelength-switching ports efficiently since working and backup tunnels can share the same wavelength-switching ports at two ends of the tunnel. Simulation results show that the network performance is improved comparing to adapt a straightforward path protection scheme for MG-OXC networks.en_US
dc.language.isoen_USen_US
dc.subjectFault-recoveryen_US
dc.subjectprotectionen_US
dc.subjectoptical cross-connect (OXC)en_US
dc.subjectmultigranularity optical cross-connect (MG-OXC)en_US
dc.subjecttunnelen_US
dc.titleDesign of Tunnel-based Protection Schemes in Multigranularity Optical Cross-connect Networksen_US
dc.typeProceedings Paperen_US
dc.identifier.journal2ND INTERNATIONAL CONFERENCE ON BROADBAND NETWORKS (BROADNETS 2005)en_US
dc.citation.spage336en_US
dc.citation.epage338en_US
dc.contributor.department資訊工程學系zh_TW
dc.contributor.departmentDepartment of Computer Scienceen_US
dc.identifier.wosnumberWOS:000289904800088-
Appears in Collections:Conferences Paper