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dc.contributor.authorYetginer, E.en_US
dc.contributor.authorKarasan, E.en_US
dc.date.accessioned2015-07-28T11:58:17Z
dc.date.available2015-07-28T11:58:17Z
dc.date.issued2008-04en_US
dc.identifier.issn0733-8716
dc.identifier.urihttp://hdl.handle.net/11693/11664
dc.description.abstractIncreasing demand for bandwidth and proliferation of packet based traffic represent a challenge for today’s metro networks, which have been traditionally designed to carry circuitswitched connections. The problem is further complicated by the constraints of cost efficiency and traffic adaptability, imposed by the limited customer base in the metro area. Recently, several architectures have been proposed for future metro access networks. Nearly all of these solutions support dynamic reconfigurability, however reconfiguration policies have not been fully explored yet. In this paper, reconfiguration policies for IP/WDM metro access networks with switching delays are considered, where dynamic reconfiguration corresponds to dynamic allocation of wavelengths to access nodes. Exact formulation of the dynamic wavelength allocation (DWA) problem is developed as a Markov Decision Process (MDP) and a new cost function is proposed to attain both throughput efficiency and fairness. For larger problems, a heuristic approach based on first passage probabilities is developed and shown to yield nearly optimum performance through simulations.en_US
dc.language.isoEnglishen_US
dc.source.titleIEEE Journal on Selected Areas in Communicationsen_US
dc.relation.isversionofhttp://doi.org/10.1109/JSAC-OCN.2008.031407en_US
dc.subjectMetro access networksen_US
dc.subjectIP over WDMen_US
dc.subjectDynamic wavelength allocationen_US
dc.subjectReconfigurationen_US
dc.subjectMarkov decision processen_US
dc.subjectSwitching delayen_US
dc.titleDynamic wavelength allocation in IP/WDM metro access networksen_US
dc.typeArticleen_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.citation.spage13en_US
dc.citation.epage27en_US
dc.citation.volumeNumber26en_US
dc.citation.issueNumber3en_US
dc.identifier.doi10.1109/JSAC-OCN.2008.031407en_US
dc.publisherInstitute of Electrical and Electronics Engineersen_US
dc.identifier.eissn1558-0008


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