{"id":"https://openalex.org/W4402835415","doi":"https://doi.org/10.1109/vtc2024-spring62846.2024.10683590","title":"Variational Bayesian Inference-Based Joint Active User Detection and Channel Estimation in Cell-Free Massive MIMO","display_name":"Variational Bayesian Inference-Based Joint Active User Detection and Channel Estimation in Cell-Free Massive MIMO","publication_year":2024,"publication_date":"2024-06-24","ids":{"openalex":"https://openalex.org/W4402835415","doi":"https://doi.org/10.1109/vtc2024-spring62846.2024.10683590"},"language":"en","primary_location":{"id":"doi:10.1109/vtc2024-spring62846.2024.10683590","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1109/vtc2024-spring62846.2024.10683590","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)","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/A5100640521","display_name":"Junhui Liu","orcid":"https://orcid.org/0000-0002-1454-4442"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junhui Liu","raw_affiliation_strings":["CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China,Hefei,Anhui,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China,Hefei,Anhui,China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002295162","display_name":"Shihao Zhu","orcid":"https://orcid.org/0009-0006-8222-8827"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shihao Zhu","raw_affiliation_strings":["CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China,Hefei,Anhui,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China,Hefei,Anhui,China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101874243","display_name":"Ming Zhao","orcid":"https://orcid.org/0000-0003-3912-8530"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ming Zhao","raw_affiliation_strings":["CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China,Hefei,Anhui,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China,Hefei,Anhui,China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5103116315","display_name":"Wuyang Zhou","orcid":null},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Wuyang Zhou","raw_affiliation_strings":["CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China,Hefei,Anhui,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"CAS Key Laboratory of Wireless-Optical Communications, University of Science and Technology of China,Hefei,Anhui,China","institution_ids":["https://openalex.org/I126520041"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.1856,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.50461975,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":94},"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9995999932289124,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9995999932289124,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9908999800682068,"subfield":{"id":"https://openalex.org/subfields/1705","display_name":"Computer Networks and Communications"},"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":0.9908000230789185,"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/joint","display_name":"Joint (building)","score":0.6829876899719238},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6556013226509094},{"id":"https://openalex.org/keywords/inference","display_name":"Inference","score":0.639327347278595},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6168686747550964},{"id":"https://openalex.org/keywords/bayesian-inference","display_name":"Bayesian inference","score":0.5580920577049255},{"id":"https://openalex.org/keywords/bayesian-probability","display_name":"Bayesian probability","score":0.5535668134689331},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5286258459091187},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.43855929374694824},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.35999608039855957},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.34013986587524414},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.18330848217010498},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.14709296822547913}],"concepts":[{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.6829876899719238},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6556013226509094},{"id":"https://openalex.org/C2776214188","wikidata":"https://www.wikidata.org/wiki/Q408386","display_name":"Inference","level":2,"score":0.639327347278595},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6168686747550964},{"id":"https://openalex.org/C160234255","wikidata":"https://www.wikidata.org/wiki/Q812535","display_name":"Bayesian inference","level":3,"score":0.5580920577049255},{"id":"https://openalex.org/C107673813","wikidata":"https://www.wikidata.org/wiki/Q812534","display_name":"Bayesian probability","level":2,"score":0.5535668134689331},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5286258459091187},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.43855929374694824},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.35999608039855957},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.34013986587524414},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.18330848217010498},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.14709296822547913},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vtc2024-spring62846.2024.10683590","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1109/vtc2024-spring62846.2024.10683590","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 IEEE 99th Vehicular Technology Conference (VTC2024-Spring)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1938636034","https://openalex.org/W2000721204","https://openalex.org/W2044762091","https://openalex.org/W2286275639","https://openalex.org/W3081279169","https://openalex.org/W3109886790","https://openalex.org/W3111559089","https://openalex.org/W3131918509","https://openalex.org/W3158961426","https://openalex.org/W3188366979","https://openalex.org/W3204500065","https://openalex.org/W3211252859","https://openalex.org/W4285121626","https://openalex.org/W4290993999","https://openalex.org/W4313126930","https://openalex.org/W4318141576","https://openalex.org/W4390075287"],"related_works":["https://openalex.org/W2372267530","https://openalex.org/W2969189870","https://openalex.org/W2965643117","https://openalex.org/W4303857162","https://openalex.org/W2407375987","https://openalex.org/W3049691116","https://openalex.org/W2505726097","https://openalex.org/W2010643158","https://openalex.org/W2106867672","https://openalex.org/W3081214562"],"abstract_inverted_index":{"This":[0],"paper":[1],"investigates":[2],"the":[3,29,35,44,47,84,88,100,104,107],"problem":[4,71],"of":[5,32,106],"joint":[6,60],"active":[7],"user":[8],"detection":[9],"(AUD)":[10],"and":[11,34,62,99],"channel":[12,36,49],"estimation":[13],"(CE)":[14],"for":[15],"grant-free":[16],"random":[17],"access":[18],"in":[19,43,87],"a":[20,52,67,92],"cell-free":[21,45],"massive":[22],"multi-input":[23],"multi-output":[24],"(MIMO)":[25],"system.":[26],"Due":[27],"to":[28,82],"sporadic":[30],"activation":[31],"users":[33],"block":[37,85],"sparsity":[38,54,86],"caused":[39],"by":[40],"large-scale":[41],"fading":[42],"system,":[46],"effective":[48],"matrix":[50],"exhibits":[51],"dual":[53,58],"property.":[55],"Considering":[56],"this":[57],"sparsity,":[59],"AUD":[61],"CE":[63],"are":[64],"formulated":[65],"as":[66],"sparse":[68],"signal":[69],"reconstruction":[70],"based":[72],"on":[73],"compressed":[74],"sensing.":[75],"A":[76],"\u2018three-choice-one\u2019":[77],"prior":[78],"assumption":[79],"is":[80,97],"employed":[81],"extract":[83],"antenna":[89],"dimension.":[90],"Then":[91],"variational":[93],"Bayesian":[94],"inference-based":[95],"algorithm":[96],"proposed,":[98],"simulation":[101],"results":[102],"validate":[103],"reliability":[105],"proposed":[108],"algorithm.":[109]},"counts_by_year":[{"year":2024,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}