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dc.contributor.authorRastegarfar, Houman
dc.contributor.authorSvensson, Tommy
dc.contributor.authorPeyghambarian, Nasser
dc.date.accessioned2019-03-05T21:09:38Z
dc.date.available2019-03-05T21:09:38Z
dc.date.issued2018-09-12
dc.identifier.citationHouman Rastegarfar, Tommy Svensson, and Nasser Peyghambarian, "Optical Layer Routing Influence on Software-Defined C-RAN Survivability," J. Opt. Commun. Netw. 10, 866-877 (2018)en_US
dc.identifier.issn1943-0620
dc.identifier.issn1943-0639
dc.identifier.doi10.1364/JOCN.10.000866
dc.identifier.urihttp://hdl.handle.net/10150/631786
dc.description.abstractCloud radio access network (C-RAN) architecture based on heterogeneous radio resources and centralized processing holds promise for satisfying the diverse requirements of fifth-generation mobile applications. In order to provide fronthaul/backhaul connectivity to the radio resources, not only does a dynamic software-defined networking (SDN) optical transport (X-haul) solution resolve the capacity scaling bottlenecks, it can also lead to statistical multiplexing gains and power efficiency in the system. Infrastructure programmability due to SDN, however, can result in network reliability concerns due to the inherent cyber-physical interdependency between the physical fiber and the higher-layer (IP) control networks. In this paper, we study the SDN C-RAN robustness to node failures, considering the interplay of wireless, optical, and control domains, and examine the effectiveness of two optical-layer routing mechanisms, i.e., static load balancing and dynamic routing, for survivable system operation. Our Monte Carlo analysis points to the marginal advantage of load balancing, irrespective of connection distribution in the control plane. However, optical X-haul programmability provides for robust C-RAN operation with essentially no sensitivity to critical network elements and negligible penalty in terms of fronthaul segment latency.en_US
dc.description.sponsorshipNatural Sciences and Engineering Research Council of Canada (NSERC); NSF Center for Integrated Access Networks (CIAN) [EEC-0812072]en_US
dc.language.isoenen_US
dc.publisherOPTICAL SOC AMERen_US
dc.relation.urlhttps://www.osapublishing.org/abstract.cfm?URI=jocn-10-11-866en_US
dc.rightsJournal © 2018 Optical Society of America.en_US
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectCloud radio access network (C-RAN)en_US
dc.subjectInfrastructure programmabilityen_US
dc.subjectLoad balancingen_US
dc.subjectRoutingen_US
dc.subjectSoftware-defined networking (SDN)en_US
dc.subjectSurvivabilityen_US
dc.titleOptical Layer Routing Influence on Software-Defined C-RAN Survivabilityen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Coll Opt Scien_US
dc.identifier.journalJOURNAL OF OPTICAL COMMUNICATIONS AND NETWORKINGen_US
dc.description.note12 month embargo; published September 12, 2018en_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal accepted manuscripten_US
dc.source.journaltitleJournal of Optical Communications and Networking
dc.source.volume10
dc.source.issue11
dc.source.beginpage866


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