Iterative block decision feedback equalization for IM/DD-based OCDM to compensate chromatic-dispersion-induced power fading

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dc.contributor.authorOuyang, Xing
dc.contributor.authorTalli, Giuseppe
dc.contributor.authorPower, Mark
dc.contributor.authorTownsend, Paul D.
dc.contributor.funderScience Foundation Irelanden
dc.date.accessioned2019-07-26T11:38:54Z
dc.date.available2019-07-26T11:38:54Z
dc.date.issued2019-06-19
dc.date.updated2019-07-11T10:30:18Z
dc.description.abstractOrthogonal chirp-division multiplexing (OCDM) has recently been proposed as an attractive modulation technique for high-speed fiber-optic systems in virtue of its resilience against system impairments. In this paper, we propose an iterative block (IB) decision feedback equalization (DFE) algorithm for the intensity-modulation and direct-detection (IM/DD) based OCDM system to effectively mitigate the chromatic-dispersion (CD)-induced power fading in the fiber. An efficient algorithm is derived to simplify the IB-DFE at the receiver. Analysis is pro-vided to show that the fading effect is compensated by recovering the noisy signals in the vicinity of frequency notches. Simulations were carried out to study the performance of the proposed system. The results show that the proposed system with IB-DFE is able to compensate severe fading effects and improves the bit-error rate (BER) by several orders of magnitude. An experiment was implemented to realize 30.3-Gbit/s IM/DD-OCDM signal over 50-km fiber, in which power fading due to CD over 20 dB was observed. The experiment results show that the proposed system further reduced the required OSNR by 8 dB to achieve a BER of 3×10 −5.en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationOuyang, X., Talli, G., Power, M. and Townsend, P. D. (2019) 'Iterative block decision feedback equalization for IM/DD-based OCDM to compensate chromatic-dispersion-induced power fading', Journal of Lightwave Technology. doi: 10.1109/JLT.2019.2923783en
dc.identifier.doi10.1109/JLT.2019.2923783en
dc.identifier.eissn1558-2213
dc.identifier.issn0733-8724
dc.identifier.journaltitleJournal of Lightwave Technologyen
dc.identifier.urihttps://hdl.handle.net/10468/8255
dc.language.isoenen
dc.publisherInstitute of Electrical and Electronics Engineers (IEEE)en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Investigator Programme/12/IA/1270/IE/Next Generation Photonic Access and Data Communication Systems/en
dc.relation.projectinfo:eu-repo/grantAgreement/SFI/SFI Research Centres/12/RC/2276/IE/I-PIC Irish Photonic Integration Research Centre/en
dc.relation.urihttps://ieeexplore.ieee.org/abstract/document/8740920
dc.rights© 2019, 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.subjectCode division multiplexingen
dc.subjectFading channelsen
dc.subjectChirpen
dc.subjectOFDMen
dc.subjectReceiversen
dc.subjectDiscrete Fourier transformsen
dc.subjectDecision feedback equalizersen
dc.subjectDiscrete Fresnel transform (DFnT)en
dc.subjectOrthogonal chirp-division multiplexing (OCDM)en
dc.subjectIterative block decision feed-back equalization (IB-DFE)en
dc.subjectChromatic-dispersion induced power fadingen
dc.subjectIntensity modulationen
dc.subjectDirect detectionen
dc.titleIterative block decision feedback equalization for IM/DD-based OCDM to compensate chromatic-dispersion-induced power fadingen
dc.typeArticle (peer-reviewed)en
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