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Conference Paper: Load-balanced optical switch for high-speed router design

TitleLoad-balanced optical switch for high-speed router design
Authors
KeywordsFiber ring network
High-speed router
Load-balanced optical switch
Issue Date2010
PublisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=50
Citation
Ieee International Conference On Communications, 2010 How to Cite?
AbstractA hybrid electro-optic router is attractive, where packet buffering and table lookup are carried out in electrical domain and switching is done optically. In this paper, we propose a loadbalanced optical switch (LBOS) fabric for a hybrid router. LBOS comprises N linecards connected by an N-wavelength WDM fiber ring. Each linecard i is configured to receive on channel λ i. To send a packet, it can select and transmit on an idle channel based on where the packet goes. The packet remains in the optical domain all the way from an input linecard/port to an output linecard/port. Meanwhile, the loading in the ring network is perfectly balanced by spreading the packets for different destinations to use different wavelengths, and packets for the same destination to use different time slots. With the pipelined operation of the LBOS, we show that LBOS is an optical counterpart of an efficient load-balanced electronic switch, and close-to-100% throughput can be obtained. To address the ringfairness problem under the inadmissible traffic patterns, an efficient throughput-fair scheduler for LBOS is also devised. ©2010 IEEE.
Persistent Identifierhttp://hdl.handle.net/10722/139273
ISSN
References

 

DC FieldValueLanguage
dc.contributor.authorHu, Ben_HK
dc.contributor.authorYeung, KLen_HK
dc.date.accessioned2011-09-23T05:47:49Z-
dc.date.available2011-09-23T05:47:49Z-
dc.date.issued2010en_HK
dc.identifier.citationIeee International Conference On Communications, 2010en_HK
dc.identifier.issn0536-1486en_HK
dc.identifier.urihttp://hdl.handle.net/10722/139273-
dc.description.abstractA hybrid electro-optic router is attractive, where packet buffering and table lookup are carried out in electrical domain and switching is done optically. In this paper, we propose a loadbalanced optical switch (LBOS) fabric for a hybrid router. LBOS comprises N linecards connected by an N-wavelength WDM fiber ring. Each linecard i is configured to receive on channel λ i. To send a packet, it can select and transmit on an idle channel based on where the packet goes. The packet remains in the optical domain all the way from an input linecard/port to an output linecard/port. Meanwhile, the loading in the ring network is perfectly balanced by spreading the packets for different destinations to use different wavelengths, and packets for the same destination to use different time slots. With the pipelined operation of the LBOS, we show that LBOS is an optical counterpart of an efficient load-balanced electronic switch, and close-to-100% throughput can be obtained. To address the ringfairness problem under the inadmissible traffic patterns, an efficient throughput-fair scheduler for LBOS is also devised. ©2010 IEEE.en_HK
dc.languageengen_US
dc.publisherIEEE. The Journal's web site is located at http://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=50-
dc.relation.ispartofIEEE International Conference on Communicationsen_HK
dc.rightsJournal of Lightwave Technology. Copyright © IEEE.-
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2010 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.subjectFiber ring networken_HK
dc.subjectHigh-speed routeren_HK
dc.subjectLoad-balanced optical switchen_HK
dc.titleLoad-balanced optical switch for high-speed router designen_HK
dc.typeConference_Paperen_HK
dc.identifier.emailYeung, KL:kyeung@eee.hku.hken_HK
dc.identifier.authorityYeung, KL=rp00204en_HK
dc.description.naturepublished_or_final_version-
dc.identifier.doi10.1109/ICC.2010.5502018en_HK
dc.identifier.scopuseid_2-s2.0-77955379621en_HK
dc.identifier.hkuros195076en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77955379621&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume28en_US
dc.identifier.issue13-
dc.identifier.spage1969en_US
dc.identifier.epage1977en_US
dc.identifier.scopusauthoridHu, B=36617158500en_HK
dc.identifier.scopusauthoridYeung, KL=7202424908en_HK

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