Adaptively loaded IM/DD optical OFDM based on set-partitioned QAM formats

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dc.contributor.authorZhao, Jian
dc.contributor.authorChen, Lian-Kuan
dc.contributor.funderScience Foundation Irelanden
dc.contributor.funderResearch Grants Council, University Grants Committeeen
dc.date.accessioned2017-10-06T09:13:23Z
dc.date.available2017-10-06T09:13:23Z
dc.date.issued2017-04-17
dc.date.updated2017-09-27T08:47:27Z
dc.description.abstractWe investigate the constellation design and symbol error rate (SER) of set-partitioned (SP) quadrature amplitude modulation (QAM) formats. Based on the SER analysis, we derive the adaptive bit and power loading algorithm for SP QAM based intensity-modulation direct-detection (IM/DD) orthogonal frequency division multiplexing (OFDM). We experimentally show that the proposed system significantly outperforms the conventional adaptively-loaded IM/DD OFDM and can increase the data rate from 36 Gbit/s to 42 Gbit/s in the presence of severe dispersion-induced spectral nulls after 40-km single-mode fiber. It is also shown that the adaptive algorithm greatly enhances the tolerance to fiber nonlinearity and allows for more power budget.en
dc.description.sponsorshipResearch Grants Council, University Grants Committee (GRF14200914; GRF14204015)en
dc.description.statusPeer revieweden
dc.description.versionPublished Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationZhao, J. and Chen, L.-K. (2017) 'Adaptively loaded IM/DD optical OFDM based on set-partitioned QAM formats', Optics Express, 25(8), pp. 9368-9377. doi:10.1364/OE.25.009368en
dc.identifier.doi10.1364/OE.25.009368
dc.identifier.endpage9377en
dc.identifier.issn1094-4087
dc.identifier.issued8en
dc.identifier.journaltitleOptics Expressen
dc.identifier.startpage9368en
dc.identifier.urihttps://hdl.handle.net/10468/4841
dc.identifier.volume25en
dc.language.isoenen
dc.publisherOSA Publishingen
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Career Development Award/15/CDA/3652/IE/Technologies towards Flexible High-Capacity Optical Networks/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Starting Investigator Research Grant (SIRG)/11/SIRG/I2124/IE/Digital Signal Processing based Optical Communication Systems/en
dc.relation.urihttp://www.opticsexpress.org/abstract.cfm?URI=oe-25-8-9368
dc.rights© 2017 Optical Society of America. Users may use, reuse, and build upon the article, or use the article for text or data mining, so long as such uses are for non-commercial purposes and appropriate attribution is maintained. All other rights are reserved.en
dc.subjectFiber optics communicationsen
dc.subjectModulationen
dc.titleAdaptively loaded IM/DD optical OFDM based on set-partitioned QAM formatsen
dc.typeArticle (peer-reviewed)en
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