{"id":"https://openalex.org/W4410949590","doi":"https://doi.org/10.1109/lsp.2025.3575611","title":"Sequential Number-Theoretic Optimization for High-Dimensional Channel Equalization in Coherent Optical PDM Systems","display_name":"Sequential Number-Theoretic Optimization for High-Dimensional Channel Equalization in Coherent Optical PDM Systems","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4410949590","doi":"https://doi.org/10.1109/lsp.2025.3575611"},"language":"en","primary_location":{"id":"doi:10.1109/lsp.2025.3575611","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2025.3575611","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"is_oa":false,"is_in_doaj":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Signal Processing Letters","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":null,"display_name":"Shuai Liu","orcid":"https://orcid.org/0009-0009-7930-8115"},"institutions":[{"id":"https://openalex.org/I141568987","display_name":"Hong Kong Baptist University","ror":"https://ror.org/0145fw131","country_code":"HK","type":"education","lineage":["https://openalex.org/I141568987"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Shuai Liu","raw_affiliation_strings":["Guangdong Provincial/Zhuhai Key Laboratory of IRADS, Beijing Normal-Hong Kong Baptist University, Zhuhai, China"],"raw_orcid":"https://orcid.org/0009-0009-7930-8115","affiliations":[{"raw_affiliation_string":"Guangdong Provincial/Zhuhai Key Laboratory of IRADS, Beijing Normal-Hong Kong Baptist University, Zhuhai, China","institution_ids":["https://openalex.org/I141568987"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043950601","display_name":"Yangfan Xu","orcid":"https://orcid.org/0000-0001-6075-2990"},"institutions":[{"id":"https://openalex.org/I141568987","display_name":"Hong Kong Baptist University","ror":"https://ror.org/0145fw131","country_code":"HK","type":"education","lineage":["https://openalex.org/I141568987"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Yangfan Xu","raw_affiliation_strings":["Guangdong Provincial/Zhuhai Key Laboratory of IRADS, Beijing Normal-Hong Kong Baptist University, Zhuhai, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Guangdong Provincial/Zhuhai Key Laboratory of IRADS, Beijing Normal-Hong Kong Baptist University, Zhuhai, China","institution_ids":["https://openalex.org/I141568987"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5018742134","display_name":"Xinwei Du","orcid":"https://orcid.org/0000-0002-1055-2832"},"institutions":[{"id":"https://openalex.org/I141568987","display_name":"Hong Kong Baptist University","ror":"https://ror.org/0145fw131","country_code":"HK","type":"education","lineage":["https://openalex.org/I141568987"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Xinwei Du","raw_affiliation_strings":["Guangdong Provincial/Zhuhai Key Laboratory of IRADS, Beijing Normal-Hong Kong Baptist University, Zhuhai, China"],"raw_orcid":"https://orcid.org/0000-0002-1055-2832","affiliations":[{"raw_affiliation_string":"Guangdong Provincial/Zhuhai Key Laboratory of IRADS, Beijing Normal-Hong Kong Baptist University, Zhuhai, China","institution_ids":["https://openalex.org/I141568987"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I141568987"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.09784426,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"32","issue":null,"first_page":"2329","last_page":"2333"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10232","display_name":"Optical Network Technologies","score":1.0,"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/T10232","display_name":"Optical Network Technologies","score":1.0,"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/T11797","display_name":"graph theory and CDMA systems","score":0.9955000281333923,"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":0.9930999875068665,"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/computer-science","display_name":"Computer science","score":0.6188573241233826},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5639059543609619},{"id":"https://openalex.org/keywords/equalization","display_name":"Equalization (audio)","score":0.5480133295059204},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.43296435475349426},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.42116373777389526},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.41622117161750793},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4125766158103943},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.32373952865600586},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15610036253929138}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6188573241233826},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5639059543609619},{"id":"https://openalex.org/C75755367","wikidata":"https://www.wikidata.org/wiki/Q104531076","display_name":"Equalization (audio)","level":3,"score":0.5480133295059204},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.43296435475349426},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.42116373777389526},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.41622117161750793},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4125766158103943},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.32373952865600586},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15610036253929138},{"id":"https://openalex.org/C554190296","wikidata":"https://www.wikidata.org/wiki/Q47528","display_name":"Radar","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/lsp.2025.3575611","is_oa":false,"landing_page_url":"https://doi.org/10.1109/lsp.2025.3575611","pdf_url":null,"source":{"id":"https://openalex.org/S120629676","display_name":"IEEE Signal Processing Letters","issn_l":"1070-9908","issn":["1070-9908","1558-2361"],"is_oa":false,"is_in_doaj":false,"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":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Signal Processing Letters","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy","score":0.4300000071525574}],"awards":[{"id":"https://openalex.org/G3889739470","display_name":null,"funder_award_id":"2022A1515110706","funder_id":"https://openalex.org/F4320337111","funder_display_name":"Basic and Applied Basic Research Foundation of Guangdong Province"},{"id":"https://openalex.org/G5478344989","display_name":null,"funder_award_id":"62371207","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7659188730","display_name":null,"funder_award_id":"62441101","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320337111","display_name":"Basic and Applied Basic Research Foundation of Guangdong Province","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":24,"referenced_works":["https://openalex.org/W1533816529","https://openalex.org/W1966967777","https://openalex.org/W1980548377","https://openalex.org/W2029546134","https://openalex.org/W2090755136","https://openalex.org/W2094013566","https://openalex.org/W2110774823","https://openalex.org/W2118411215","https://openalex.org/W2154467340","https://openalex.org/W2166282503","https://openalex.org/W2744117245","https://openalex.org/W2808930966","https://openalex.org/W2887391767","https://openalex.org/W2962710949","https://openalex.org/W3102106569","https://openalex.org/W3113015946","https://openalex.org/W4226263217","https://openalex.org/W4238205818","https://openalex.org/W4292969922","https://openalex.org/W4301373791","https://openalex.org/W4304782260","https://openalex.org/W4364304778","https://openalex.org/W4386737125","https://openalex.org/W4391248721"],"related_works":["https://openalex.org/W4362649942","https://openalex.org/W4362650463","https://openalex.org/W4378843470","https://openalex.org/W2007244060","https://openalex.org/W2213399209","https://openalex.org/W2357071098","https://openalex.org/W2037052377","https://openalex.org/W2372924712","https://openalex.org/W1982160889","https://openalex.org/W4312327035"],"abstract_inverted_index":{"Polarization-division":[0],"multiplexing":[1],"(PDM)":[2],"in":[3,142],"coherent":[4,143],"optical":[5,144],"communications":[6],"enhances":[7],"system":[8,41],"capacity":[9],"but":[10,151],"is":[11],"vulnerable":[12],"to":[13,74],"various":[14],"channel":[15,140],"distortions":[16],"including":[17],"transmitter":[18],"and":[19,33,77,82,94,106,115,127],"receiver":[20],"in-phase/quadrature":[21],"(IQ)":[22],"mismatch,":[23],"rotation":[24],"of":[25,27,61],"state":[26],"polarization":[28],"(RSOP),":[29],"frequency":[30],"offset":[31],"(FO)":[32],"phase":[34],"noise":[35],"(PN),":[36],"which":[37],"significantly":[38],"degrade":[39],"the":[40,58],"performance.":[42],"To":[43],"address":[44],"these":[45,62],"challenges,":[46],"we":[47],"propose":[48],"a":[49,67,71],"novel":[50],"approach":[51],"using":[52],"sequential":[53],"number-theoretic":[54],"optimization":[55],"(SNTO)":[56],"for":[57,79,138],"joint":[59],"estimation":[60,125],"distortions.":[63],"We":[64],"further":[65],"introduce":[66],"decision-aided":[68],"scheme":[69],"with":[70,123,147],"window-split":[72],"structure":[73],"accurately":[75],"track":[76],"compensate":[78],"time-varying":[80],"RSOP":[81,108],"PN,":[83],"thereby":[84],"implementing":[85],"signal":[86],"detection.":[87],"Through":[88],"comprehensive":[89],"mean":[90],"squared":[91],"error":[92,96],"(MSE)":[93],"bit":[95],"rate":[97],"(BER)":[98],"analysis":[99],"under":[100],"different":[101],"signal-to-noise":[102],"ratio":[103],"(SNR)":[104],"conditions":[105],"varying":[107],"speeds,":[109],"our":[110],"method":[111],"demonstrates":[112],"high":[113],"precision":[114],"effectiveness.":[116],"The":[117],"SNTO-based":[118],"algorithm":[119],"maintains":[120],"robust":[121],"performance":[122],"superior":[124],"accuracy":[126],"resilience":[128],"against":[129],"ultra-fast":[130],"RSOP.":[131],"This":[132],"work":[133],"introduces":[134],"an":[135],"innovative":[136],"solution":[137],"high-dimensional":[139],"equalization":[141],"PDM":[145],"systems":[146],"not":[148],"only":[149],"effectiveness":[150],"also":[152],"robustness.":[153]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}