{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2022,4,3]],"date-time":"2022-04-03T14:50:30Z","timestamp":1648997430027},"reference-count":21,"publisher":"Hindawi Limited","license":[{"start":{"date-parts":[[2015,1,1]],"date-time":"2015-01-01T00:00:00Z","timestamp":1420070400000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Electrical and Computer Engineering"],"published-print":{"date-parts":[[2015]]},"abstract":"<jats:p>The space-time whitened matched filter (ST-WMF) maximum likelihood sequence detection (MLSD) architecture has been recently proposed (Maggio et al., 2014). Its objective is reducing implementation complexity in transmissions over nonlinear dispersive channels. The ST-WMF-MLSD receiver (i) drastically reduces the number of states of the Viterbi decoder (VD) and (ii) offers a smooth trade-off between performance and complexity. In this work the ST-WMF-MLSD receiver is investigated in detail. We show that the<jats:italic>space compression<\/jats:italic>of the nonlinear channel is an instrumental property of the ST-WMF-MLSD which results in a major reduction of the implementation complexity in intensity modulation and direct detection (IM\/DD) fiber optic systems. Moreover, we assess the performance of ST-WMF-MLSD in IM\/DD optical systems with chromatic dispersion (CD) and polarization mode dispersion (PMD). Numerical results for a 10\u2009Gb\/s, 700\u2009km, and IM\/DD fiber-optic link with 50\u2009ps differential group delay (DGD) show that the number of states of the VD in ST-WMF-MLSD can be reduced ~4 times compared to an oversampled MLSD. Finally, we analyze the impact of the imperfect channel estimation on the performance of the ST-WMF-MLSD. Our results show that the performance degradation caused by channel estimation inaccuracies is low and similar to that achieved by existing MLSD schemes (~0.2\u2009dB).<\/jats:p>","DOI":"10.1155\/2015\/736267","type":"journal-article","created":{"date-parts":[[2015,2,16]],"date-time":"2015-02-16T21:03:08Z","timestamp":1424120588000},"page":"1-12","source":"Crossref","is-referenced-by-count":2,"title":["Maximum Likelihood Sequence Detection Receivers for Nonlinear Optical Channels"],"prefix":"10.1155","volume":"2015","author":[{"given":"Gabriel N.","family":"Maggio","sequence":"first","affiliation":[{"name":"Laboratorio de Comunicaciones Digitales, Universidad Nacional de C\u00f3rdoba, CONICET, Avenida V\u00e9lez Sarsfield 1611, C\u00f3rdoba X5016GCA, Argentina"}]},{"given":"Mario R.","family":"Hueda","sequence":"additional","affiliation":[{"name":"Laboratorio de Comunicaciones Digitales, Universidad Nacional de C\u00f3rdoba, CONICET, Avenida V\u00e9lez Sarsfield 1611, C\u00f3rdoba X5016GCA, Argentina"}]},{"given":"Oscar E.","family":"Agazzi","sequence":"additional","affiliation":[{"name":"ClariPhy Communications, Inc., 7585 Irvine Center Drive, Suite 100, Irvine, CA 92618, USA"}]}],"member":"98","reference":[{"key":"2","year":"1999"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1109\/tcomm.2002.802567"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1109\/tcom.1977.1093884"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1109\/tcom.1986.1096483"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1109\/jlt.2006.886065"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1109\/jlt.2007.891174"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1109\/lpt.2006.873478"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1109\/JSSC.2008.2006232"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1109\/49.87640"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1109\/31.135746"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1109\/29.32286"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1109\/JLT.2004.838870"},{"key":"1","doi-asserted-by":"publisher","DOI":"10.1109\/LPT.2013.2295200"},{"key":"22","year":"2004"},{"key":"23","doi-asserted-by":"publisher","DOI":"10.1109\/tcom.1982.1095435"},{"key":"24","doi-asserted-by":"publisher","DOI":"10.1109\/LPT.2009.2037726"},{"key":"26","doi-asserted-by":"publisher","DOI":"10.1109\/4.585246"},{"key":"28","first-page":"99","volume":"35","year":"2005","journal-title":"Latin Amenican Applied Research"},{"key":"30","year":"2007"},{"key":"25","doi-asserted-by":"publisher","DOI":"10.1109\/JLT.2006.890434"},{"key":"31","doi-asserted-by":"publisher","DOI":"10.1109\/18.556101"}],"container-title":["Journal of Electrical and Computer Engineering"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/jece\/2015\/736267.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/jece\/2015\/736267.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/jece\/2015\/736267.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2016,8,19]],"date-time":"2016-08-19T00:59:53Z","timestamp":1471568393000},"score":1,"resource":{"primary":{"URL":"http:\/\/www.hindawi.com\/journals\/jece\/2015\/736267\/"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015]]},"references-count":21,"alternative-id":["736267","736267"],"URL":"https:\/\/doi.org\/10.1155\/2015\/736267","relation":{},"ISSN":["2090-0147","2090-0155"],"issn-type":[{"value":"2090-0147","type":"print"},{"value":"2090-0155","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015]]}}}