{"id":"https://openalex.org/W4408355806","doi":"https://doi.org/10.1109/icassp49660.2025.10888089","title":"Addressing Pilot Contamination in Channel Estimation with Variational Autoencoders","display_name":"Addressing Pilot Contamination in Channel Estimation with Variational Autoencoders","publication_year":2025,"publication_date":"2025-03-12","ids":{"openalex":"https://openalex.org/W4408355806","doi":"https://doi.org/10.1109/icassp49660.2025.10888089"},"language":"en","primary_location":{"id":"doi:10.1109/icassp49660.2025.10888089","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp49660.2025.10888089","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-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":"https://openalex.org/A5006095911","display_name":"Amar Kasibovic","orcid":null},"institutions":[{"id":"https://openalex.org/I62916508","display_name":"Technical University of Munich","ror":"https://ror.org/02kkvpp62","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]}],"countries":["DE"],"is_corresponding":true,"raw_author_name":"Amar Kasibovic","raw_affiliation_strings":["Technical University of Munich,TUM School of Computation, Information and Technology,Munich,Germany"],"affiliations":[{"raw_affiliation_string":"Technical University of Munich,TUM School of Computation, Information and Technology,Munich,Germany","institution_ids":["https://openalex.org/I62916508"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5034199583","display_name":"Benedikt Fesl","orcid":"https://orcid.org/0000-0002-1431-5885"},"institutions":[{"id":"https://openalex.org/I62916508","display_name":"Technical University of Munich","ror":"https://ror.org/02kkvpp62","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Benedikt Fesl","raw_affiliation_strings":["Technical University of Munich,TUM School of Computation, Information and Technology,Munich,Germany"],"affiliations":[{"raw_affiliation_string":"Technical University of Munich,TUM School of Computation, Information and Technology,Munich,Germany","institution_ids":["https://openalex.org/I62916508"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5110969908","display_name":"Michael Baur","orcid":null},"institutions":[{"id":"https://openalex.org/I62916508","display_name":"Technical University of Munich","ror":"https://ror.org/02kkvpp62","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Michael Baur","raw_affiliation_strings":["Technical University of Munich,TUM School of Computation, Information and Technology,Munich,Germany"],"affiliations":[{"raw_affiliation_string":"Technical University of Munich,TUM School of Computation, Information and Technology,Munich,Germany","institution_ids":["https://openalex.org/I62916508"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5004140094","display_name":"Wolfgang Utschick","orcid":"https://orcid.org/0000-0002-2871-4246"},"institutions":[{"id":"https://openalex.org/I62916508","display_name":"Technical University of Munich","ror":"https://ror.org/02kkvpp62","country_code":"DE","type":"education","lineage":["https://openalex.org/I62916508"]}],"countries":["DE"],"is_corresponding":false,"raw_author_name":"Wolfgang Utschick","raw_affiliation_strings":["Technical University of Munich,TUM School of Computation, Information and Technology,Munich,Germany"],"affiliations":[{"raw_affiliation_string":"Technical University of Munich,TUM School of Computation, Information and Technology,Munich,Germany","institution_ids":["https://openalex.org/I62916508"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5006095911"],"corresponding_institution_ids":["https://openalex.org/I62916508"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.05919561,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10860","display_name":"Speech and Audio Processing","score":0.9632999897003174,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T10860","display_name":"Speech and Audio Processing","score":0.9632999897003174,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9251999855041504,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/contamination","display_name":"Contamination","score":0.6899029016494751},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6266015768051147},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5993346571922302},{"id":"https://openalex.org/keywords/estimation","display_name":"Estimation","score":0.5356143712997437},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.4238308370113373},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.17412111163139343},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.1453973948955536},{"id":"https://openalex.org/keywords/systems-engineering","display_name":"Systems engineering","score":0.09621769189834595}],"concepts":[{"id":"https://openalex.org/C112570922","wikidata":"https://www.wikidata.org/wiki/Q60528603","display_name":"Contamination","level":2,"score":0.6899029016494751},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6266015768051147},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5993346571922302},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.5356143712997437},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.4238308370113373},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.17412111163139343},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.1453973948955536},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","level":1,"score":0.09621769189834595},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icassp49660.2025.10888089","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icassp49660.2025.10888089","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ICASSP 2025 - 2025 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Zero hunger","id":"https://metadata.un.org/sdg/2","score":0.5299999713897705}],"awards":[],"funders":[{"id":"https://openalex.org/F4320311649","display_name":"Ministry of Education","ror":"https://ror.org/036nq5137"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":19,"referenced_works":["https://openalex.org/W1971031702","https://openalex.org/W2067643757","https://openalex.org/W2086569976","https://openalex.org/W2145013959","https://openalex.org/W2147035723","https://openalex.org/W2147601077","https://openalex.org/W2343491855","https://openalex.org/W2738538347","https://openalex.org/W2792090252","https://openalex.org/W2810871807","https://openalex.org/W2963190722","https://openalex.org/W2963290405","https://openalex.org/W2963673880","https://openalex.org/W2963836746","https://openalex.org/W2998993395","https://openalex.org/W4206196235","https://openalex.org/W4323520903","https://openalex.org/W4401387306","https://openalex.org/W6640963894"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W4246525302","https://openalex.org/W2355749553","https://openalex.org/W2327028314","https://openalex.org/W2070278412","https://openalex.org/W281735054","https://openalex.org/W2565462584","https://openalex.org/W1533753578"],"abstract_inverted_index":{"Pilot":[0],"contamination":[1],"(PC)":[2],"is":[3,109,129],"a":[4,39,79],"well-known":[5],"problem":[6],"that":[7,105],"affects":[8],"massive":[9],"multiple-input":[10],"multiple-output":[11],"(MIMO)":[12],"systems.":[13],"When":[14],"frequency":[15],"and":[16,63,83,88],"pilots":[17],"are":[18],"reused":[19],"between":[20],"different":[21],"cells,":[22,87],"PC":[23],"constitutes":[24],"one":[25],"of":[26,30,48,52,66,81,111,143],"the":[27,31,43,50,61,67,74,106,113,126,132,136,141],"main":[28],"bottlenecks":[29],"system's":[32],"performance.":[33],"In":[34],"this":[35],"paper,":[36],"we":[37,89,123],"propose":[38],"method":[40],"based":[41],"on":[42],"variational":[44],"autoencoder":[45],"(VAE),":[46],"capable":[47,110],"reducing":[49],"impact":[51],"PC-related":[53],"interference":[54],"during":[55],"channel":[56],"estimation":[57],"(CE).":[58],"We":[59,103],"obtain":[60],"first":[62],"second-order":[64],"statistics":[65],"conditionally":[68],"Gaussian":[69],"(CG)":[70],"channels":[71],"for":[72],"both":[73],"user":[75],"equipments":[76],"(UEs)":[77],"in":[78,85,140],"cell":[80],"interest":[82],"those":[84],"interfering":[86],"then":[90],"use":[91],"these":[92],"moments":[93],"to":[94,131],"compute":[95],"conditional":[96],"linear":[97],"minimum":[98],"mean":[99],"square":[100],"error":[101],"estimates.":[102],"show":[104],"proposed":[107],"estimator":[108],"exploiting":[112],"interferers\u2019":[114],"additional":[115],"statistical":[116],"knowledge,":[117],"outperforming":[118],"other":[119],"classical":[120],"approaches.":[121],"Moreover,":[122],"highlight":[124],"how":[125],"achievable":[127],"performance":[128],"tied":[130],"chosen":[133],"setup,":[134],"making":[135],"setup":[137],"selection":[138],"crucial":[139],"study":[142],"multi-cell":[144],"CE.":[145]},"counts_by_year":[],"updated_date":"2025-12-28T23:10:05.387466","created_date":"2025-10-10T00:00:00"}
