{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,21]],"date-time":"2025-10-21T15:34:27Z","timestamp":1761060867885},"reference-count":17,"publisher":"Oxford University Press (OUP)","issue":"2","license":[{"start":{"date-parts":[[2019,11,18]],"date-time":"2019-11-18T00:00:00Z","timestamp":1574035200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2020,2,19]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>The principle of orthogonal frequency-division multiplexing (OFDM) is to transmit the data through a large number of multiple orthogonal subcarriers. The coherent optical OFDM (CO-OFDM) is OFDM data that are being modulated to light frequency and being detected in coherent manner. CO-OFDM brings to optical communications the combination of two powerful techniques, coherent optical detection and OFDM. One of the primary challenges in the CO-OFDM system is to remove optical fiber nonlinear effects. This makes nonlinearity compensation a critical task of the CO-OFDM system. So a nonlinear equalizer (NLE) based on adaptive neuro-fuzzy inference system (ANFIS) is presented for CO-OFDM systems to mitigate nonlinearities on long-haul optical communications with high bit rate and bit error rate (BER)of the system. Various performance metrics were analyzed for the proposed ANFIS\u2013NLE, and it is compared with existing techniques such as support vector machine and artificial neural network. From the experimental results, our proposed approach gives better performance in terms of BER and Q-factor on comparing with existing methods.<\/jats:p>","DOI":"10.1093\/comjnl\/bxz072","type":"journal-article","created":{"date-parts":[[2019,9,4]],"date-time":"2019-09-04T15:26:39Z","timestamp":1567610799000},"page":"169-178","source":"Crossref","is-referenced-by-count":2,"title":["Adaptive Neuro-Fuzzy Inference System-based Nonlinear Equalizer for CO-OFDM Systems"],"prefix":"10.1093","volume":"63","author":[{"given":"Ajay Amrit","family":"Raj","sequence":"first","affiliation":[{"name":"Maria College of Engineering and Technology, Anna University, Thiruvattar (P.O), Near Marthandam, Tamil Nadu - 629 177"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"name":"Dejey","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2019,11,18]]},"reference":[{"key":"2020021904592600400_ref1","doi-asserted-by":"crossref","first-page":"30","DOI":"10.1016\/j.yofte.2017.06.010","article-title":"Performance evaluation of CO-OFDM systems based on electrical constant-envelope signals","volume":"37","author":"Dias","year":"2017","journal-title":"Optical Fiber Technology"},{"key":"2020021904592600400_ref2","doi-asserted-by":"crossref","first-page":"22","DOI":"10.1016\/j.optcom.2018.02.052","article-title":"Experimental demonstration of a 16.9 Gb\/s link for coherent OFDM PON robust to frequency offset and timing error","volume":"418","author":"Ma","year":"2018","journal-title":"Opt. Commun."},{"issue":"3","key":"2020021904592600400_ref3","doi-asserted-by":"crossref","first-page":"168","DOI":"10.1109\/JLT.2008.2007134","article-title":"Experimental demonstration and numerical simulation of 107-Gb\/s high spectral efficiency coherent optical OFDM","volume":"27","author":"Yang","year":"2009","journal-title":"J. Lightwave Technol."},{"issue":"4","key":"2020021904592600400_ref4","doi-asserted-by":"crossref","first-page":"1177","DOI":"10.1109\/JLT.2015.2506649","article-title":"Experimental demonstration of a 16.27 Gb\/s 2-D coherent optical OFDM system with 3-D signal mapper and 2-D IFFT modulator","volume":"34","author":"Deng","year":"2016","journal-title":"J. Lightwave Technol."},{"key":"2020021904592600400_ref5","first-page":"1","volume-title":"VTC Spring 2009-IEEE 69th Vehicular Technology Conference","author":"O\u2019Droma","year":"2009"},{"key":"2020021904592600400_ref6","first-page":"1","volume-title":"2017 IEEE International Conference on Communications","author":"Choi","year":"2017"},{"key":"2020021904592600400_ref7","doi-asserted-by":"crossref","first-page":"494","DOI":"10.1016\/j.ijleo.2017.03.024","article-title":"Analysis of chromatic dispersion compensation and carrier phase recovery in long-haul optical transmission system influenced by equalization enhanced phase noise","volume":"138","author":"Xu","year":"2017","journal-title":"Optik\u2014International Journal for Light and Electron Optics"},{"issue":"2","key":"2020021904592600400_ref8","doi-asserted-by":"crossref","first-page":"841","DOI":"10.1364\/OE.16.000841","article-title":"Coherent optical OFDM: theory and design","volume":"16","author":"Shieh","year":"2008","journal-title":"Opt. Express"},{"issue":"16","key":"2020021904592600400_ref9","doi-asserted-by":"crossref","first-page":"17075","DOI":"10.1364\/OE.18.017075","article-title":"Improved single channel back propagation for intra-channel fiber non-linearity compensation in long-haul optical communication systems","volume":"18","author":"Du","year":"2010","journal-title":"Opt. Express"},{"issue":"2","key":"2020021904592600400_ref10","doi-asserted-by":"crossref","first-page":"215","DOI":"10.1109\/JLT.2010.2098017","article-title":"Non-linear electrical compensation for the coherent optical OFDM system","volume":"29","author":"Pan","year":"2011","journal-title":"J. Lightwave Technol."},{"issue":"4","key":"2020021904592600400_ref11","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1109\/LPT.2014.2375960","article-title":"Artificial neural network nonlinear equalizer for coherent optical OFDM","volume":"27","author":"Jarajreh","year":"2015","journal-title":"IEEE Photonics Technol. Lett."},{"issue":"7","key":"2020021904592600400_ref12","doi-asserted-by":"crossref","first-page":"1091","DOI":"10.1049\/iet-com.2016.1115","article-title":"A novel support vector machine robust model based electrical equaliser for coherent optical orthogonal frequency division multiplexing systems","volume":"11","author":"Mhatli","year":"2017","journal-title":"IET Commun."},{"issue":"3","key":"2020021904592600400_ref13","doi-asserted-by":"crossref","first-page":"721","DOI":"10.1109\/JLT.2017.2778883","article-title":"Blind non-linearity equalization by machine-learning-based clustering for single- and multichannel coherent optical OFDM","volume":"36","author":"Giacoumidis","year":"2019","journal-title":"J. Lightwave Technol."},{"issue":"6","key":"2020021904592600400_ref14","doi-asserted-by":"crossref","first-page":"227","DOI":"10.1007\/s11082-017-1065-9","article-title":"Application of functional link artificial neural network for mitigating non-linear effects in coherent optical OFDM","volume":"49","author":"Kaur","year":"2017","journal-title":"Optical and Quantum Electronics"},{"key":"2020021904592600400_ref15","doi-asserted-by":"crossref","first-page":"13","DOI":"10.1016\/j.optcom.2017.09.018","article-title":"Independent component analysis based digital signal processing in coherent optical fiber communication systems","volume":"409","author":"Xiang","year":"2018","journal-title":"Opt. Commun."},{"key":"2020021904592600400_ref16","first-page":"1112","volume-title":"2014 9th International Symposium on Communication Systems, Networks & Digital Sign","author":"Jarajreh","year":"2014"},{"issue":"2","key":"2020021904592600400_ref17","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1109\/JPHOT.2016.2528886","article-title":"Fiber non-linearity equalizer based on support vector classification for coherent optical OFDM","volume":"8","author":"Nguyen","year":"2016","journal-title":"IEEE Photonics J."}],"container-title":["The Computer Journal"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/academic.oup.com\/comjnl\/article-pdf\/63\/2\/169\/32519344\/bxz072.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/academic.oup.com\/comjnl\/article-pdf\/63\/2\/169\/32519344\/bxz072.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,2,19]],"date-time":"2020-02-19T04:59:45Z","timestamp":1582088385000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/comjnl\/article\/63\/2\/169\/5627775"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,11,18]]},"references-count":17,"journal-issue":{"issue":"2","published-online":{"date-parts":[[2019,11,18]]},"published-print":{"date-parts":[[2020,2,19]]}},"URL":"https:\/\/doi.org\/10.1093\/comjnl\/bxz072","relation":{},"ISSN":["0010-4620","1460-2067"],"issn-type":[{"type":"print","value":"0010-4620"},{"type":"electronic","value":"1460-2067"}],"subject":[],"published-other":{"date-parts":[[2020,2]]},"published":{"date-parts":[[2019,11,18]]}}}