Detection and equalization of set-partitioned offset-QAM OFDM in IMDD systems

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dc.contributor.author Townsend, Paul D.
dc.contributor.author Zhao, Jian
dc.date.accessioned 2019-01-07T11:01:59Z
dc.date.available 2019-01-07T11:01:59Z
dc.date.issued 2018-11-27
dc.identifier.citation Zhao, J. and Townsend, P. D. (2018) 'Detection and equalization of set-partitioned offset-QAM OFDM in IMDD systems', IEEE Photonics Technology Letters, 31(1), pp. 70-73. doi:10.1109/LPT.2018.2883538 en
dc.identifier.volume 31 en
dc.identifier.issued 1 en
dc.identifier.startpage 70 en
dc.identifier.endpage 73 en
dc.identifier.issn 1041-1135
dc.identifier.uri http://hdl.handle.net/10468/7258
dc.identifier.doi 10.1109/LPT.2018.2883538
dc.description.abstract We design the detection algorithm for orthogonal frequency division multiplexing (OFDM) based on set-partitioned offset quadrature amplitude modulation (SP-offset-QAM) in adaptively-loaded intensity modulation and direct detection (IMDD) systems. The algorithm mitigates signal-signal beating interference (SSBI), improves the equalization capability of conventional one-tap equalizers, and reduces the complexity and the required length of training sequence in the decoding of multi-dimensional SP-QAM signals. We experimentally demonstrate adaptively-loaded SP-offset-QAM OFDM over 50-km single-mode fiber to verify the proposed algorithm. It is shown that the modified equalization significantly improves the performance while the SSBI mitigation brings benefits after transmission. The proposed decoding scheme reduces the complexity comparable to that in conventional QAM. It is also shown that SP-offset-QAM OFDM outperforms SP-based conventional QAM and conventional offset-QAM OFDM both at back-to-back and after 50-km transmission, when the algorithm is applied to all schemes. en
dc.description.sponsorship Central Government of China (Thousand Talents Program) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Institute of Electrical and Electronics Engineers (IEEE) en
dc.rights © 2018, IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works. en
dc.subject OFDM en
dc.subject Equalizers en
dc.subject Decoding en
dc.subject Quadrature amplitude modulation en
dc.subject Complexity theory en
dc.subject Training en
dc.subject Finite impulse response filters en
dc.subject Orthogonal frequency division multiplexing en
dc.subject Equalization en
dc.subject Detection en
dc.title Detection and equalization of set-partitioned offset-QAM OFDM in IMDD systems en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Paul Townsend, Tyndall Photonics, University College Cork, Cork, Ireland. +353-21-490-3000 Email: paul.townsend@tyndall.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-12-10T19:09:14Z
dc.description.version Accepted Version en
dc.internal.rssid 465047233
dc.contributor.funder Science Foundation Ireland en
dc.contributor.funder Central Government of China
dc.description.status Peer reviewed en
dc.identifier.journaltitle IEEE Photonics Technology Letters en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress paul.townsend@tyndall.ie en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Investigator Programme/12/IA/1270/IE/Next Generation Photonic Access and Data Communication Systems/ en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2276/IE/I-PIC Irish Photonic Integration Research Centre/ en
dc.relation.project info:eu-repo/grantAgreement/SFI/SFI Career Development Award/15/CDA/3652/IE/Technologies towards Flexible High-Capacity Optical Networks/ en


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