{"id":"https://openalex.org/W4406356098","doi":"https://doi.org/10.1109/wcsp62071.2024.10827516","title":"User Activity Detection, Channel Estimation and Sensing Parameter Estimation in Cell-Free Massive MIMO Systems","display_name":"User Activity Detection, Channel Estimation and Sensing Parameter Estimation in Cell-Free Massive MIMO Systems","publication_year":2024,"publication_date":"2024-10-24","ids":{"openalex":"https://openalex.org/W4406356098","doi":"https://doi.org/10.1109/wcsp62071.2024.10827516"},"language":"en","primary_location":{"id":"doi:10.1109/wcsp62071.2024.10827516","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp62071.2024.10827516","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 16th International Conference on Wireless Communications and Signal Processing (WCSP)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5048297544","display_name":"Tianyu Zhao","orcid":"https://orcid.org/0000-0003-2401-4098"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Tianyu Zhao","raw_affiliation_strings":["Harbin Institute of Technology,Communications Research Center,Harbin,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Harbin Institute of Technology,Communications Research Center,Harbin,China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100607349","display_name":"Shuyi Chen","orcid":"https://orcid.org/0000-0002-5169-807X"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuyi Chen","raw_affiliation_strings":["Harbin Institute of Technology,Communications Research Center,Harbin,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Harbin Institute of Technology,Communications Research Center,Harbin,China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100371683","display_name":"Ruoyu Zhang","orcid":"https://orcid.org/0000-0002-4105-5310"},"institutions":[{"id":"https://openalex.org/I36399199","display_name":"Nanjing University of Science and Technology","ror":"https://ror.org/00xp9wg62","country_code":"CN","type":"education","lineage":["https://openalex.org/I36399199"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ruoyu Zhang","raw_affiliation_strings":["School of Electronic and Optical Engineering, Nanjing University of Science and Technology,Key Laboratory of Near-Range RF Sensing ICs Microsystems (NJUST), Ministry of Education,Nanjing,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Electronic and Optical Engineering, Nanjing University of Science and Technology,Key Laboratory of Near-Range RF Sensing ICs Microsystems (NJUST), Ministry of Education,Nanjing,China","institution_ids":["https://openalex.org/I36399199"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084739355","display_name":"Hsiao\u2010Hwa Chen","orcid":"https://orcid.org/0000-0001-8473-0729"},"institutions":[{"id":"https://openalex.org/I91807558","display_name":"National Cheng Kung University","ror":"https://ror.org/01b8kcc49","country_code":"TW","type":"education","lineage":["https://openalex.org/I91807558"]}],"countries":["TW"],"is_corresponding":false,"raw_author_name":"Hsiao-Hwa Chen","raw_affiliation_strings":["National Cheng Kung University,Department of Engineering Science,Tainan City,Taiwan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Cheng Kung University,Department of Engineering Science,Tainan City,Taiwan","institution_ids":["https://openalex.org/I91807558"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046141922","display_name":"Qing Guo","orcid":"https://orcid.org/0000-0003-4209-5469"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qing Guo","raw_affiliation_strings":["Harbin Institute of Technology,Communications Research Center,Harbin,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Harbin Institute of Technology,Communications Research Center,Harbin,China","institution_ids":["https://openalex.org/I204983213"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085336307","display_name":"Weixiao Meng","orcid":null},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weixiao Meng","raw_affiliation_strings":["Harbin Institute of Technology,Communications Research Center,Harbin,China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Harbin Institute of Technology,Communications Research Center,Harbin,China","institution_ids":["https://openalex.org/I204983213"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"444","last_page":"449"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9993000030517578,"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":0.9993000030517578,"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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9854999780654907,"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/T13553","display_name":"Age of Information Optimization","score":0.9735999703407288,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6681432723999023},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6562659740447998},{"id":"https://openalex.org/keywords/estimation","display_name":"Estimation","score":0.563530445098877},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5398985147476196},{"id":"https://openalex.org/keywords/estimation-theory","display_name":"Estimation theory","score":0.5200897455215454},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.20321092009544373},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.18687185645103455},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1510087251663208}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6681432723999023},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6562659740447998},{"id":"https://openalex.org/C96250715","wikidata":"https://www.wikidata.org/wiki/Q965330","display_name":"Estimation","level":2,"score":0.563530445098877},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5398985147476196},{"id":"https://openalex.org/C167928553","wikidata":"https://www.wikidata.org/wiki/Q1376021","display_name":"Estimation theory","level":2,"score":0.5200897455215454},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.20321092009544373},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.18687185645103455},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1510087251663208},{"id":"https://openalex.org/C201995342","wikidata":"https://www.wikidata.org/wiki/Q682496","display_name":"Systems engineering","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcsp62071.2024.10827516","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp62071.2024.10827516","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2024 16th International Conference on Wireless Communications and Signal Processing (WCSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3186095161","display_name":null,"funder_award_id":"62201266,62201176","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3963168574","display_name":null,"funder_award_id":"BK20210335","funder_id":"https://openalex.org/F4320322769","funder_display_name":"Natural Science Foundation of Jiangsu Province"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322769","display_name":"Natural Science Foundation of Jiangsu Province","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":28,"referenced_works":["https://openalex.org/W1993357071","https://openalex.org/W2135338342","https://openalex.org/W2286275639","https://openalex.org/W2339667469","https://openalex.org/W2422021507","https://openalex.org/W2548516812","https://openalex.org/W2559695533","https://openalex.org/W2591812953","https://openalex.org/W2735475593","https://openalex.org/W2890736047","https://openalex.org/W2964003927","https://openalex.org/W2972579901","https://openalex.org/W2976468372","https://openalex.org/W3004212706","https://openalex.org/W3006143078","https://openalex.org/W3111559089","https://openalex.org/W3205428400","https://openalex.org/W3211252859","https://openalex.org/W3211270128","https://openalex.org/W3213070675","https://openalex.org/W4210326058","https://openalex.org/W4285055114","https://openalex.org/W4292070204","https://openalex.org/W4312466007","https://openalex.org/W4313045429","https://openalex.org/W4385517010","https://openalex.org/W4386634572","https://openalex.org/W4390938914"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W2390279801","https://openalex.org/W4391913857","https://openalex.org/W2358668433","https://openalex.org/W4396701345","https://openalex.org/W2376932109","https://openalex.org/W2001405890","https://openalex.org/W4396696052"],"abstract_inverted_index":{"As":[0],"one":[1],"of":[2,23,78],"the":[3,75,101,112,116,127,136],"key":[4],"enabling":[5],"technologies":[6],"in":[7,51,82],"6G,":[8],"cell-free":[9],"massive":[10],"multiple-input":[11],"multiple-output":[12],"(CFmMIMO)":[13],"helps":[14],"to":[15,30,89],"achieve":[16],"a":[17,20,57,66],"macro-diversity":[18],"via":[19],"large":[21],"number":[22],"distributed":[24],"access":[25],"points,":[26],"having":[27],"its":[28],"potential":[29],"improve":[31],"communication":[32],"and":[33,47,61,96,107,118,145],"sensing":[34,48,71,97,146],"performance":[35],"significantly.":[36],"In":[37],"this":[38],"paper,":[39],"we":[40,55],"investigate":[41],"user":[42,58,80,91,105],"activity":[43,59,92,106,143],"detection,":[44,93],"channel":[45,62,94,110,130],"estimation,":[46,95],"parameter":[49,98],"estimation":[50,63,99,148],"CFmMIMO":[52],"systems.":[53],"First,":[54],"formulate":[56],"detection":[60,144],"problem":[64,72],"as":[65],"multiple":[67],"measurement":[68],"vectors":[69],"compressive":[70],"by":[73],"leveraging":[74],"sparse":[76],"nature":[77],"sporadic":[79],"traffic":[81],"CFmMIMO.":[83],"A":[84],"two-stage":[85,138],"algorithm":[86,139],"is":[87],"proposed":[88,137],"solve":[90],"problem:":[100],"first":[102],"stage":[103,114],"detects":[104],"estimates":[108,115],"effective":[109,129],"coefficients;":[111],"second":[113],"range":[117],"angle":[119],"parameters":[120,147],"associated":[121],"with":[122],"active":[123],"users":[124],"based":[125],"on":[126],"estimated":[128],"coefficients.":[131],"Simulation":[132],"results":[133],"demonstrate":[134],"that":[135],"can":[140],"provide":[141],"accurate":[142],"results.":[149]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1}],"updated_date":"2026-07-14T23:27:15.235271","created_date":"2025-10-10T00:00:00"}
