{"id":"https://openalex.org/W7160872305","doi":"https://doi.org/10.1109/access.2026.3692370","title":"Filtered CE-OFDM for Spectral Efficiency in Visible Light Communications","display_name":"Filtered CE-OFDM for Spectral Efficiency in Visible Light Communications","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7160872305","doi":"https://doi.org/10.1109/access.2026.3692370"},"language":"en","primary_location":{"id":"doi:10.1109/access.2026.3692370","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2026.3692370","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2026.3692370","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5135852759","display_name":"B. M. S. R. Rosmaninho","orcid":"https://orcid.org/0000-0001-7564-1812"},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]},{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"B. M. S. R. Rosmaninho","raw_affiliation_strings":["Instituto de Telecomunica&#x00E7;&#x00F5;es, University of Coimbra, Coimbra, Portugal"],"raw_orcid":"https://orcid.org/0000-0001-7564-1812","affiliations":[{"raw_affiliation_string":"Instituto de Telecomunica&#x00E7;&#x00F5;es, University of Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I4210120471","https://openalex.org/I76903346"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5135873903","display_name":"B. M. Oliveira","orcid":null},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]},{"id":"https://openalex.org/I60858718","display_name":"University of Aveiro","ror":"https://ror.org/00nt41z93","country_code":"PT","type":"education","lineage":["https://openalex.org/I60858718"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Beatriz M. Oliveira","raw_affiliation_strings":["Instituto de Telecomunica&#x00E7;&#x00F5;es, University of Aveiro, Aveiro, Portugal"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Instituto de Telecomunica&#x00E7;&#x00F5;es, University of Aveiro, Aveiro, Portugal","institution_ids":["https://openalex.org/I4210120471","https://openalex.org/I60858718"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083434244","display_name":"V L M Silva","orcid":null},"institutions":[{"id":"https://openalex.org/I161127581","display_name":"Universidade Federal Fluminense","ror":"https://ror.org/02rjhbb08","country_code":"BR","type":"education","lineage":["https://openalex.org/I161127581"]}],"countries":["BR"],"is_corresponding":false,"raw_author_name":"Vinicius N. H. Silva","raw_affiliation_strings":["Department of Telecommunication Engineering, Universidade Federal Fluminense, Niter&#x00F3;i, Rio de Janeiro, Brazil"],"raw_orcid":"https://orcid.org/0000-0001-9991-4483","affiliations":[{"raw_affiliation_string":"Department of Telecommunication Engineering, Universidade Federal Fluminense, Niter&#x00F3;i, Rio de Janeiro, Brazil","institution_ids":["https://openalex.org/I161127581"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048983922","display_name":"Milton Medeiros","orcid":null},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]},{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Maria Do Carmo Medeiros","raw_affiliation_strings":["Instituto de Telecomunica&#x00E7;&#x00F5;es, University of Coimbra, Coimbra, Portugal"],"raw_orcid":"https://orcid.org/0000-0003-2277-2848","affiliations":[{"raw_affiliation_string":"Instituto de Telecomunica&#x00E7;&#x00F5;es, University of Coimbra, Coimbra, Portugal","institution_ids":["https://openalex.org/I4210120471","https://openalex.org/I76903346"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5126061407","display_name":"Paulo Monteiro","orcid":null},"institutions":[{"id":"https://openalex.org/I4210120471","display_name":"Instituto de Telecomunica\u00e7\u00f5es","ror":"https://ror.org/02ht4fk33","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210120471"]},{"id":"https://openalex.org/I60858718","display_name":"University of Aveiro","ror":"https://ror.org/00nt41z93","country_code":"PT","type":"education","lineage":["https://openalex.org/I60858718"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Paulo P. Monteiro","raw_affiliation_strings":["Instituto de Telecomunica&#x00E7;&#x00F5;es, University of Aveiro, Aveiro, Portugal"],"raw_orcid":"https://orcid.org/0000-0003-4664-9238","affiliations":[{"raw_affiliation_string":"Instituto de Telecomunica&#x00E7;&#x00F5;es, University of Aveiro, Aveiro, Portugal","institution_ids":["https://openalex.org/I4210120471","https://openalex.org/I60858718"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.68338845,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"14","issue":null,"first_page":"73886","last_page":"73899"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10851","display_name":"Optical Wireless Communication Technologies","score":0.9677000045776367,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10851","display_name":"Optical Wireless Communication Technologies","score":0.9677000045776367,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","score":0.009999999776482582,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10767","display_name":"Advanced Photonic Communication Systems","score":0.00860000029206276,"subfield":{"id":"https://openalex.org/subfields/2208","display_name":"Electrical and Electronic Engineering"},"field":{"id":"https://openalex.org/fields/22","display_name":"Engineering"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/visible-spectrum","display_name":"Visible spectrum","score":0.5490000247955322},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.5074999928474426},{"id":"https://openalex.org/keywords/visible-light-communication","display_name":"Visible light communication","score":0.507099986076355},{"id":"https://openalex.org/keywords/optical-filter","display_name":"Optical filter","score":0.4749999940395355},{"id":"https://openalex.org/keywords/optical-communication","display_name":"Optical communication","score":0.33000001311302185},{"id":"https://openalex.org/keywords/pulse-shaping","display_name":"Pulse shaping","score":0.314300000667572}],"concepts":[{"id":"https://openalex.org/C104663316","wikidata":"https://www.wikidata.org/wiki/Q76299","display_name":"Visible spectrum","level":2,"score":0.5490000247955322},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.5325999855995178},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.5074999928474426},{"id":"https://openalex.org/C160487672","wikidata":"https://www.wikidata.org/wiki/Q1426313","display_name":"Visible light communication","level":3,"score":0.507099986076355},{"id":"https://openalex.org/C45613198","wikidata":"https://www.wikidata.org/wiki/Q1134091","display_name":"Optical filter","level":2,"score":0.4749999940395355},{"id":"https://openalex.org/C49040817","wikidata":"https://www.wikidata.org/wiki/Q193091","display_name":"Optoelectronics","level":1,"score":0.47209998965263367},{"id":"https://openalex.org/C192562407","wikidata":"https://www.wikidata.org/wiki/Q228736","display_name":"Materials science","level":0,"score":0.4275999963283539},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.40549999475479126},{"id":"https://openalex.org/C129404179","wikidata":"https://www.wikidata.org/wiki/Q1469765","display_name":"Optical communication","level":2,"score":0.33000001311302185},{"id":"https://openalex.org/C102755159","wikidata":"https://www.wikidata.org/wiki/Q7259683","display_name":"Pulse shaping","level":3,"score":0.314300000667572},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.2973000109195709},{"id":"https://openalex.org/C206991015","wikidata":"https://www.wikidata.org/wiki/Q192704","display_name":"Energy conversion efficiency","level":2,"score":0.2953999936580658},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.2858000099658966},{"id":"https://openalex.org/C176666156","wikidata":"https://www.wikidata.org/wiki/Q25504","display_name":"Light-emitting diode","level":2,"score":0.28360000252723694},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.2809999883174896},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.2621999979019165}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2026.3692370","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2026.3692370","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:dd866de07e47435cbe6ac936f72bb146","is_oa":false,"landing_page_url":"https://doaj.org/article/dd866de07e47435cbe6ac936f72bb146","pdf_url":null,"source":{"id":"https://openalex.org/S4306401280","display_name":"DOAJ (DOAJ: Directory of Open Access Journals)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 14, Pp 73886-73899 (2026)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2026.3692370","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2026.3692370","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.7698027491569519,"display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G2032980657","display_name":null,"funder_award_id":"CENTRO-01-0145-FEDER-022141","funder_id":"https://openalex.org/F4320335322","funder_display_name":"European Regional Development Fund"},{"id":"https://openalex.org/G2304000510","display_name":null,"funder_award_id":"101008280","funder_id":"https://openalex.org/F4320338337","funder_display_name":"H2020 Marie Sk\u0142odowska-Curie Actions"},{"id":"https://openalex.org/G284461894","display_name":null,"funder_award_id":"407517/2023-5","funder_id":"https://openalex.org/F4320322025","funder_display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico"},{"id":"https://openalex.org/G2888814634","display_name":null,"funder_award_id":"307370/2020-8","funder_id":"https://openalex.org/F4320322025","funder_display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico"},{"id":"https://openalex.org/G3084352400","display_name":null,"funder_award_id":"E-26/200.161/2023","funder_id":"https://openalex.org/F4320322749","funder_display_name":"Funda\u00e7\u00e3o Carlos Chagas Filho de Amparo \u00e0 Pesquisa do Estado do Rio de Janeiro"},{"id":"https://openalex.org/G3691628138","display_name":null,"funder_award_id":"2021.152290.BD","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"},{"id":"https://openalex.org/G4909334376","display_name":null,"funder_award_id":"402369/2024-6","funder_id":"https://openalex.org/F4320322025","funder_display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico"},{"id":"https://openalex.org/G546278981","display_name":"Instituto de Telecomunica\u00e7\u00f5es","funder_award_id":"UID/50008/2025","funder_id":"https://openalex.org/F4320334779","funder_display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia"},{"id":"https://openalex.org/G8255726236","display_name":null,"funder_award_id":"E-26/211.184/2019","funder_id":"https://openalex.org/F4320322749","funder_display_name":"Funda\u00e7\u00e3o Carlos Chagas Filho de Amparo \u00e0 Pesquisa do Estado do Rio de Janeiro"}],"funders":[{"id":"https://openalex.org/F4320322025","display_name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","ror":"https://ror.org/03swz6y49"},{"id":"https://openalex.org/F4320322749","display_name":"Funda\u00e7\u00e3o Carlos Chagas Filho de Amparo \u00e0 Pesquisa do Estado do Rio de Janeiro","ror":"https://ror.org/03kk0s825"},{"id":"https://openalex.org/F4320334779","display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","ror":"https://ror.org/00snfqn58"},{"id":"https://openalex.org/F4320335322","display_name":"European Regional Development Fund","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320338337","display_name":"H2020 Marie Sk\u0142odowska-Curie Actions","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Constant":[0],"Envelope":[1],"OFDM":[2],"(CE-OFDM)":[3],"offers":[4],"excellent":[5],"robustness":[6,41,159],"to":[7,34,63,91,122,132,187,205],"nonlinear":[8],"distortion":[9],"and":[10,24,101,149,162,217,238],"noise,":[11],"but":[12],"at":[13,107],"the":[14,39,54,108,183,203],"cost":[15,179],"of":[16,42,53,86,130],"poor":[17],"spectral":[18,153],"efficiency":[19,154],"(SE).":[20],"This":[21,220],"paper":[22],"proposes":[23],"experimentally":[25],"validates":[26],"a":[27,70,116,144,169],"filtered":[28],"variant,":[29],"Filtered":[30],"CE-OFDM":[31,83],"(F-CE-OFDM),":[32],"designed":[33],"improve":[35],"SE":[36,148,212],"while":[37,156,180],"preserving":[38,182],"intrinsic":[40],"CE-OFDM.":[43],"A":[44],"flexible":[45],"optimization":[46],"framework":[47],"is":[48],"introduced,":[49],"enabling":[50],"dynamic":[51],"adjustment":[52],"filtering":[55,172,192],"parameter":[56,193],"<inline-formula>":[57,96,102,194],"<tex-math":[58,97,103,195],"notation=\"LaTeX\">$\\alpha":[59,98,196],"$":[60,99,197],"</tex-math></inline-formula>":[61,198],"according":[62],"different":[64],"system":[65,204],"requirements.":[66],"Experimental":[67],"results":[68,140],"in":[69,84],"visible":[71],"light":[72],"communication":[73,227],"(VLC)":[74],"setup":[75],"demonstrate":[76],"that":[77],"F-CE-OFDM":[78,125,142,223],"can":[79],"consistently":[80],"outperform":[81],"conventional":[82,123],"terms":[85],"SE,":[87],"achieving":[88],"gains":[89],"up":[90,131],"3":[92],"bits/s/Hz":[93],"when":[94],"using":[95],"</tex-math></inline-formula>=1":[100],"notation=\"LaTeX\">$2\\pi":[104],"h$":[105],"</tex-math></inline-formula>=1.6":[106],"highest":[109],"average":[110],"received":[111],"power":[112],"level":[113],"with":[114],"only":[115,168],"small":[117],"EVM":[118,128,209],"penalty.":[119],"Moreover,":[120],"compared":[121],"OFDM,":[124],"achieves":[126],"an":[127],"improvement":[129],"approximately":[133],"10":[134],"dB":[135],"under":[136],"low-SNR":[137],"conditions.":[138],"These":[139],"highlight":[141],"as":[143],"compelling":[145],"compromise":[146],"between":[147],"EVM,":[150],"delivering":[151],"substantial":[152],"enhancement":[155],"maintaining":[157,235],"strong":[158],"against":[160],"noise":[161,231],"nonlinearities.":[163],"The":[164],"proposed":[165],"scheme":[166],"introduces":[167],"low-complexity":[170],"digital":[171],"stage,":[173],"implying":[174],"negligible":[175],"impact":[176],"on":[177,214],"implementation":[178],"largely":[181],"power-efficiency":[184],"benefits":[185],"inherent":[186],"constant-envelope":[188],"modulation.":[189],"Its":[190],"tunable":[191],"enables":[199],"adaptive":[200],"operation,":[201],"allowing":[202],"prioritize":[206],"either":[207],"low":[208],"or":[210,232],"enhanced":[211],"depending":[213],"channel":[215],"conditions":[216],"design":[218],"objectives.":[219],"versatility":[221],"makes":[222],"particularly":[224],"attractive":[225],"for":[226],"scenarios":[228],"constrained":[229],"by":[230],"bandwidth,":[233],"where":[234],"signal":[236],"integrity":[237],"efficient":[239],"spectrum":[240],"use":[241],"are":[242],"equally":[243],"critical.":[244]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2026-05-12T00:00:00"}
