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Conference Paper: Two-step routing for dynamic traffic protection in WDM networks with wavelength continuity constraint

TitleTwo-step routing for dynamic traffic protection in WDM networks with wavelength continuity constraint
Authors
KeywordsWavelength Continuity Constraint
Two-Step Routing
Dynamic Traffic Protection
Issue Date2011
PublisherIEEE.
Citation
The IEEE 12th International Conference on High Performance Switching and Routing (HPSR 2011), Cartagena, Spain, 4-6 July 2011. In IEEE HPSR Proceedings, 2011, p. 178-182 How to Cite?
AbstractCapacity efficiency is a key issue in designing survivable Wavelength Division Multiplexing (WDM) networks. In this paper, we propose a two-step routing algorithm for dynamic lightpath protection in a WDM mesh network that is subject to wavelength continuity constraint. In other words, upon each call arrival a pair of link-disjoint active and backup lightpaths is to be found for carrying the call. To enhance the capacity efficiency, the resources on the backup lightpath can be shared for protecting different active lightpaths. Owing to the very different natures of active and backup lightpaths, active lightpath is found using the widest-shortest path (WSP) routing and backup lightpath is found using the shortest-widest path (SWP) routing. A distinct feature of our design is that we require both active and backup lightpaths of a call to use the same wavelength. Two major advantages of this feature are: a) source node can use the same laser for both active and backup lightpaths, and b) the scalability issue related to route advertisement is solved. As compared with some existing schemes, we show that our two-step routing algorithm yields noticeably higher capacity efficiency and lower call blocking probability. © 2011 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/158722
ISBN
References

 

DC FieldValueLanguage
dc.contributor.authorMao, Men_US
dc.contributor.authorYeung, LKen_US
dc.date.accessioned2012-08-08T09:01:02Z-
dc.date.available2012-08-08T09:01:02Z-
dc.date.issued2011en_US
dc.identifier.citationThe IEEE 12th International Conference on High Performance Switching and Routing (HPSR 2011), Cartagena, Spain, 4-6 July 2011. In IEEE HPSR Proceedings, 2011, p. 178-182en_US
dc.identifier.isbn978-1-4244-8456-0-
dc.identifier.urihttp://hdl.handle.net/10722/158722-
dc.description.abstractCapacity efficiency is a key issue in designing survivable Wavelength Division Multiplexing (WDM) networks. In this paper, we propose a two-step routing algorithm for dynamic lightpath protection in a WDM mesh network that is subject to wavelength continuity constraint. In other words, upon each call arrival a pair of link-disjoint active and backup lightpaths is to be found for carrying the call. To enhance the capacity efficiency, the resources on the backup lightpath can be shared for protecting different active lightpaths. Owing to the very different natures of active and backup lightpaths, active lightpath is found using the widest-shortest path (WSP) routing and backup lightpath is found using the shortest-widest path (SWP) routing. A distinct feature of our design is that we require both active and backup lightpaths of a call to use the same wavelength. Two major advantages of this feature are: a) source node can use the same laser for both active and backup lightpaths, and b) the scalability issue related to route advertisement is solved. As compared with some existing schemes, we show that our two-step routing algorithm yields noticeably higher capacity efficiency and lower call blocking probability. © 2011 IEEE.en_US
dc.languageengen_US
dc.publisherIEEE.-
dc.relation.ispartofIEEE Workshop on High Performance Switching and Routing Proceedingsen_US
dc.rightsIEEE Workshop on High Performance Switching and Routing Proceedings. Copyright © IEEE.-
dc.rights©2011 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.subjectWavelength Continuity Constrainten_US
dc.subjectTwo-Step Routingen_US
dc.subjectDynamic Traffic Protectionen_US
dc.titleTwo-step routing for dynamic traffic protection in WDM networks with wavelength continuity constrainten_US
dc.typeConference_Paperen_US
dc.identifier.emailMao, M: mjmao@eee.hku.hken_US
dc.identifier.emailYeung, LK: kyeung@eee.hku.hk-
dc.identifier.authorityYeung, LK=rp00204en_US
dc.description.naturepublished_or_final_versionen_US
dc.identifier.doi10.1109/HPSR.2011.5986023en_US
dc.identifier.scopuseid_2-s2.0-80052729970en_US
dc.identifier.hkuros210608-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-80052729970&selection=ref&src=s&origin=recordpageen_US
dc.identifier.spage178en_US
dc.identifier.epage182en_US
dc.publisher.placeUnited States-
dc.identifier.scopusauthoridYeung, KL=7202424908en_US
dc.identifier.scopusauthoridMao, M=35325266400en_US
dc.customcontrol.immutablesml 130506-

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