Analytical performance modeling of elastic optical links with aligned spectrum allocation

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dc.citation.epage50en_US
dc.citation.spage40en_US
dc.citation.volumeNumber88en_US
dc.contributor.authorVaezi, K.en_US
dc.contributor.authorAkar, N.en_US
dc.date.accessioned2016-02-08T09:47:37Z
dc.date.available2016-02-08T09:47:37Z
dc.date.issued2015en_US
dc.departmentDepartment of Electrical and Electronics Engineeringen_US
dc.description.abstractAbstract Elastic optical networking has recently been proposed for use in optical transport networks to cope with increasingly heterogeneous and dynamic demand patterns. In this paper, we study the blocking performance of a multi-class elastic optical link for which a demand needs to be allocated a contiguous subset of the entire spectrum. This problem is different than the well-known blocking problem in multi-class multi-server loss systems due to the contiguous allocation constraint. We first propose a non-work-conserving aligned spectrum allocation policy which is shown to outperform the conventional first fit-based work-conserving allocation policy without alignment. Subsequently, for blocking performance of an aligned elastic optical link with up to three different traffic classes, we propose a novel and systematic order reduction procedure for MMPPs (Markov Modulated Poisson Process) and use this procedure as the numerical engine to approximately obtain the blocking probabilities. The proposed numerical algorithm is validated under various system and traffic parameters and is shown to be effectively usable as an instrument to dimension elastic optical links.en_US
dc.identifier.doi10.1016/j.comnet.2015.06.004en_US
dc.identifier.issn1389-1286
dc.identifier.urihttp://hdl.handle.net/11693/21525
dc.language.isoEnglishen_US
dc.publisherElsevier BV North-Hollanden_US
dc.relation.isversionofhttp://dx.doi.org/10.1016/j.comnet.2015.06.004en_US
dc.source.titleComputer Networksen_US
dc.subjectBandwidth blocking probabilityen_US
dc.subjectElastic optical networksen_US
dc.subjectMarkov modulated Poisson processen_US
dc.subjectSpectrum allocationen_US
dc.subjectAlgorithmsen_US
dc.subjectNetwork architectureen_US
dc.subjectOptical linksen_US
dc.subjectPoisson distributionen_US
dc.subjectSignal systemsen_US
dc.subjectAnalytical performance modelen_US
dc.subjectBlocking performanceen_US
dc.subjectNumerical algorithmsen_US
dc.subjectOptical transport networksen_US
dc.subjectBlocking probabilityen_US
dc.titleAnalytical performance modeling of elastic optical links with aligned spectrum allocationen_US
dc.typeArticleen_US
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