{"id":"https://openalex.org/W4416582849","doi":"https://doi.org/10.1109/access.2025.3636158","title":"CPA-Net: Blind Joint Signal Parameter Estimation via Channel-Wise Parameterized Attention and Heteroscedastic Loss","display_name":"CPA-Net: Blind Joint Signal Parameter Estimation via Channel-Wise Parameterized Attention and Heteroscedastic Loss","publication_year":2025,"publication_date":"2025-01-01","ids":{"openalex":"https://openalex.org/W4416582849","doi":"https://doi.org/10.1109/access.2025.3636158"},"language":"en","primary_location":{"id":"doi:10.1109/access.2025.3636158","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3636158","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.2025.3636158","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5025679223","display_name":"Xihui Zhang","orcid":"https://orcid.org/0000-0003-1135-7577"},"institutions":[{"id":"https://openalex.org/I4387154110","display_name":"Southwest China Institute of Electronic Technology","ror":"https://ror.org/04jbf9x18","country_code":null,"type":"facility","lineage":["https://openalex.org/I4387154110"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Xihui Zhang","raw_affiliation_strings":["Southwest China Institute of Electronic Technology, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Southwest China Institute of Electronic Technology, Chengdu, China","institution_ids":["https://openalex.org/I4387154110"]}]},{"author_position":"middle","author":{"id":null,"display_name":"Xianming Liang","orcid":null},"institutions":[{"id":"https://openalex.org/I4387154110","display_name":"Southwest China Institute of Electronic Technology","ror":"https://ror.org/04jbf9x18","country_code":null,"type":"facility","lineage":["https://openalex.org/I4387154110"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xianming Liang","raw_affiliation_strings":["Southwest China Institute of Electronic Technology, Chengdu, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Southwest China Institute of Electronic Technology, Chengdu, China","institution_ids":["https://openalex.org/I4387154110"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100641147","display_name":"Jianqing Li","orcid":"https://orcid.org/0000-0001-9524-4291"},"institutions":[{"id":"https://openalex.org/I150229711","display_name":"University of Electronic Science and Technology of China","ror":"https://ror.org/04qr3zq92","country_code":"CN","type":"education","lineage":["https://openalex.org/I150229711"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jianqing Li","raw_affiliation_strings":["School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China"],"raw_orcid":"https://orcid.org/0000-0001-9524-4291","affiliations":[{"raw_affiliation_string":"School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu, China","institution_ids":["https://openalex.org/I150229711"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5025679223"],"corresponding_institution_ids":["https://openalex.org/I4387154110"],"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":0.18246213,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"13","issue":null,"first_page":"200931","last_page":"200945"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9958999752998352,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9958999752998352,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.00039999998989515007,"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/T11873","display_name":"PAPR reduction in OFDM","score":0.00039999998989515007,"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/demodulation","display_name":"Demodulation","score":0.5742999911308289},{"id":"https://openalex.org/keywords/robustness","display_name":"Robustness (evolution)","score":0.5537999868392944},{"id":"https://openalex.org/keywords/baseband","display_name":"Baseband","score":0.5519999861717224},{"id":"https://openalex.org/keywords/carrier-frequency-offset","display_name":"Carrier frequency offset","score":0.4878000020980835},{"id":"https://openalex.org/keywords/estimation-theory","display_name":"Estimation theory","score":0.4846000075340271},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.47609999775886536},{"id":"https://openalex.org/keywords/synchronization","display_name":"Synchronization (alternating current)","score":0.44909998774528503},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.4343000054359436},{"id":"https://openalex.org/keywords/symbol-rate","display_name":"Symbol rate","score":0.4041999876499176},{"id":"https://openalex.org/keywords/signal-to-noise-ratio","display_name":"Signal-to-noise ratio (imaging)","score":0.3562999963760376}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7440999746322632},{"id":"https://openalex.org/C195251586","wikidata":"https://www.wikidata.org/wiki/Q1185939","display_name":"Demodulation","level":3,"score":0.5742999911308289},{"id":"https://openalex.org/C63479239","wikidata":"https://www.wikidata.org/wiki/Q7353546","display_name":"Robustness (evolution)","level":3,"score":0.5537999868392944},{"id":"https://openalex.org/C65165936","wikidata":"https://www.wikidata.org/wiki/Q575784","display_name":"Baseband","level":3,"score":0.5519999861717224},{"id":"https://openalex.org/C2776108382","wikidata":"https://www.wikidata.org/wiki/Q25111451","display_name":"Carrier frequency offset","level":5,"score":0.4878000020980835},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.4846000075340271},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.47609999775886536},{"id":"https://openalex.org/C2778562939","wikidata":"https://www.wikidata.org/wiki/Q1298791","display_name":"Synchronization (alternating current)","level":3,"score":0.44909998774528503},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.4343000054359436},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.42800000309944153},{"id":"https://openalex.org/C74645175","wikidata":"https://www.wikidata.org/wiki/Q428083","display_name":"Symbol rate","level":4,"score":0.4041999876499176},{"id":"https://openalex.org/C13944312","wikidata":"https://www.wikidata.org/wiki/Q7512748","display_name":"Signal-to-noise ratio (imaging)","level":2,"score":0.3562999963760376},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.34709998965263367},{"id":"https://openalex.org/C123079801","wikidata":"https://www.wikidata.org/wiki/Q750240","display_name":"Modulation (music)","level":2,"score":0.33239999413490295},{"id":"https://openalex.org/C2778775284","wikidata":"https://www.wikidata.org/wiki/Q5198224","display_name":"Cyclic prefix","level":4,"score":0.32899999618530273},{"id":"https://openalex.org/C41425797","wikidata":"https://www.wikidata.org/wiki/Q4926640","display_name":"Blind equalization","level":4,"score":0.3276999890804291},{"id":"https://openalex.org/C197264572","wikidata":"https://www.wikidata.org/wiki/Q2095206","display_name":"Pilot signal","level":3,"score":0.3240000009536743},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3179999887943268},{"id":"https://openalex.org/C115051666","wikidata":"https://www.wikidata.org/wiki/Q6522493","display_name":"Ranging","level":2,"score":0.3149000108242035},{"id":"https://openalex.org/C99498987","wikidata":"https://www.wikidata.org/wiki/Q2210247","display_name":"Noise (video)","level":3,"score":0.29260000586509705},{"id":"https://openalex.org/C101765175","wikidata":"https://www.wikidata.org/wiki/Q577764","display_name":"Communications system","level":2,"score":0.29100000858306885},{"id":"https://openalex.org/C2779843651","wikidata":"https://www.wikidata.org/wiki/Q7390335","display_name":"SIGNAL (programming language)","level":2,"score":0.28760001063346863},{"id":"https://openalex.org/C97812054","wikidata":"https://www.wikidata.org/wiki/Q2166055","display_name":"Intersymbol interference","level":3,"score":0.28380000591278076},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.2786000072956085},{"id":"https://openalex.org/C81363708","wikidata":"https://www.wikidata.org/wiki/Q17084460","display_name":"Convolutional neural network","level":2,"score":0.2786000072956085},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.2694000005722046},{"id":"https://openalex.org/C11930861","wikidata":"https://www.wikidata.org/wiki/Q181417","display_name":"Frequency modulation","level":3,"score":0.2687000036239624},{"id":"https://openalex.org/C49319798","wikidata":"https://www.wikidata.org/wiki/Q5502874","display_name":"Frequency offset","level":4,"score":0.2687000036239624},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.26570001244544983},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.26330000162124634},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.2619999945163727},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.2619999945163727},{"id":"https://openalex.org/C72279823","wikidata":"https://www.wikidata.org/wiki/Q1139726","display_name":"Impulse response","level":2,"score":0.25440001487731934},{"id":"https://openalex.org/C88737568","wikidata":"https://www.wikidata.org/wiki/Q890056","display_name":"Body area network","level":3,"score":0.25}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2025.3636158","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3636158","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:fad91b09fada46db835292f81a3d9f73","is_oa":true,"landing_page_url":"https://doaj.org/article/fad91b09fada46db835292f81a3d9f73","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":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 13, Pp 200931-200945 (2025)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2025.3636158","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2025.3636158","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":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"Accurate":[0],"parameter":[1,197],"estimation":[2,198],"is":[3,102,117],"crucial":[4],"for":[5,193],"ensuring":[6],"reliable":[7],"signal":[8,126],"reception":[9],"in":[10,16,159,176,200],"modern":[11],"wireless":[12,202],"communication":[13,203],"systems,":[14],"particularly":[15,175],"non-cooperative":[17],"or":[18],"dynamically":[19],"changing":[20],"environments.":[21],"However,":[22],"practical":[23,191],"receivers":[24],"frequently":[25],"encounter":[26],"unknown":[27],"symbol":[28,63,162],"rates":[29,64],"and":[30,38,44,65,90,132,164,171,190,196],"carrier":[31,66],"frequency":[32,67,165],"offsets":[33,68],"induced":[34],"by":[35],"oscillator":[36],"mismatches":[37],"channel":[39],"impairments,":[40],"significantly":[41,153],"degrading":[42],"demodulation":[43],"synchronization":[45,195],"performance.":[46],"To":[47],"mitigate":[48],"these":[49],"challenges,":[50],"this":[51],"paper":[52],"proposes":[53],"a":[54,98,120,134],"dual-branch":[55],"deep":[56],"neural":[57],"network":[58],"designed":[59],"to":[60,104,143,168],"jointly":[61],"estimate":[62],"directly":[69],"from":[70,140],"raw":[71],"baseband":[72],"waveforms.":[73],"The":[74,111],"proposed":[75,115,151],"model":[76],"employs":[77],"hierarchical":[78],"convolutional":[79],"feature":[80],"extraction":[81],"combined":[82],"with":[83],"channel-wise":[84],"attention":[85],"mechanisms,":[86],"effectively":[87],"capturing":[88],"temporal":[89],"spectral":[91],"characteristics":[92],"across":[93],"diverse":[94],"modulation":[95,130],"formats.":[96],"Additionally,":[97],"heteroscedastic":[99],"loss":[100],"function":[101],"introduced":[103],"enhance":[105],"robustness":[106],"under":[107],"varying":[108],"noise":[109],"conditions.":[110],"effectiveness":[112],"of":[113],"the":[114,150,155,184],"method":[116],"evaluated":[118],"using":[119],"large-scale":[121],"synthetic":[122],"dataset":[123],"comprising":[124],"240,000":[125],"samples,":[127],"covering":[128],"12":[129],"schemes":[131],"spanning":[133],"broad":[135],"signal-to-noise":[136],"ratio":[137],"(SNR)":[138],"range":[139],"0":[141],"dB":[142],"20":[144],"dB.":[145],"Experimental":[146],"results":[147],"indicate":[148],"that":[149,183],"framework":[152],"reduces":[154],"mean":[156],"absolute":[157],"error":[158],"estimating":[160],"both":[161],"rate":[163],"offset":[166],"compared":[167],"state-of-the-art":[169],"CNN-":[170],"RNN-based":[172],"baseline":[173],"methods,":[174],"low-to-moderate":[177],"SNR":[178],"regimes.":[179],"These":[180],"findings":[181],"demonstrate":[182],"developed":[185],"approach":[186],"provides":[187],"an":[188],"effective":[189],"solution":[192],"blind":[194],"tasks":[199],"complex":[201],"scenarios.":[204]},"counts_by_year":[],"updated_date":"2026-05-06T08:25:59.206177","created_date":"2025-11-25T00:00:00"}
