Show simple item record

dc.contributor.authorMhatli, Sofien
dc.contributor.authorStephens, Marc F. C.
dc.contributor.authorTsokanos, Athanasios
dc.contributor.authorWei, Jinlong
dc.contributor.authorMcCarthy, Mary E.
dc.contributor.authorDoran, Nick J.
dc.contributor.authorEllis , Andrew D.
dc.date.accessioned2017-06-29T15:56:06Z
dc.date.available2017-06-29T15:56:06Z
dc.date.issued2017-06-15
dc.identifier.citationMhatli , S , Stephens , M F C , Tsokanos , A , Wei , J , McCarthy , M E , Doran , N J & Ellis , A D 2017 , ' Reduction of Nonlinear Inter-Subcarrier Intermixing in Coherent Optical OFDM by a Fast Newton-based Support Vector Machine Nonlinear Equalizer ' , Journal of Lightwave Technology , vol. 35 , no. 12 , pp. 2391-2397 . https://doi.org/10.1109/JLT.2017.2678511
dc.identifier.issn0733-8724
dc.identifier.otherPURE: 11296902
dc.identifier.otherPURE UUID: 2d228750-6a99-48fd-9c72-35611b36911e
dc.identifier.otherScopus: 85028728826
dc.identifier.urihttp://hdl.handle.net/2299/18679
dc.descriptionThis is an Open Access article. © 2017 IEEE. Translations and content mining are permitted for academic research only. Personal use is also permitted, but republication/redistribution requires IEEE permission. See http://www.ieee.org/publications standards/publications/rights/index.html for more information.
dc.description.abstractA fast Newton-based support vector machine (N-SVM) nonlinear equalizer (NLE) is experimentally demonstrated, for the first time, in 40 Gb/s 16-quadrature amplitude modulated coherent optical orthogonal frequency division multiplexing at 2000 km of transmission. It is shown that N-SVM-NLE extends the optimum launched optical power by 2 dB compared to the benchmark Volterra-based NLE. The performance improvement by N-SVM is due to its ability of tackling both deterministic fiber-induced nonlinear effects and the interaction between nonlinearities and stochastic noises (e.g. polarization-mode dispersion). N-SVM is more tolerant to inter-subcarrier nonlinear crosstalk effects than Volterra-based NLE, especially when applied across all subcarriers simultaneously. In contrast to the conventional SVM, the proposed algorithm is of reduced classifier complexity offering lower computational load and execution time. For a low C -parameter of 4 (a penalty parameter related to complexity), an execution time of 1.6 sec is required for N-SVM to effectively mitigate nonlinearities. Compared to conventional SVM, the computational load of N-SVM is ~6 times lower.en
dc.format.extent7
dc.language.isoeng
dc.relation.ispartofJournal of Lightwave Technology
dc.rights/dk/atira/pure/core/openaccesspermission/open
dc.subjectcoherent optical OFDM
dc.subjectcoherent detection
dc.subjectnonlinearity mitigation
dc.subjectsupport vector machines
dc.titleReduction of Nonlinear Inter-Subcarrier Intermixing in Coherent Optical OFDM by a Fast Newton-based Support Vector Machine Nonlinear Equalizeren
dc.contributor.institutionSchool of Computer Science
dc.contributor.institutionCentre for Computer Science and Informatics Research
dc.description.statusPeer reviewed
dc.relation.schoolSchool of Computer Science
dc.description.versiontypeFinal Published version
dcterms.dateAccepted2017-03-01
rioxxterms.versionAM
rioxxterms.versionVoR
rioxxterms.versionofrecordhttps://doi.org/10.1109/JLT.2017.2678511
rioxxterms.typeJournal Article/Review
herts.preservation.rarelyaccessedtrue
herts.rights.accesstypeopenAccess


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record