{"id":"https://openalex.org/W7138891704","doi":"https://doi.org/10.1109/globecom59602.2025.11431942","title":"Distributed Activity Detection for Cell-Free Hybrid Near-Far Field Communications","display_name":"Distributed Activity Detection for Cell-Free Hybrid Near-Far Field Communications","publication_year":2025,"publication_date":"2025-12-08","ids":{"openalex":"https://openalex.org/W7138891704","doi":"https://doi.org/10.1109/globecom59602.2025.11431942"},"language":null,"primary_location":{"id":"doi:10.1109/globecom59602.2025.11431942","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom59602.2025.11431942","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2025 - 2025 IEEE Global Communications Conference","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/A5129781811","display_name":"Jingreng Lei","orcid":null},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Jingreng Lei","raw_affiliation_strings":["The University of Hong Kong,Department of Electrical and Electronic Engineering,Hong Kong"],"affiliations":[{"raw_affiliation_string":"The University of Hong Kong,Department of Electrical and Electronic Engineering,Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5130200183","display_name":"Yang Li","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yang Li","raw_affiliation_strings":["Great Bay University,School of Computing and Information Technology,Dongguan,China"],"affiliations":[{"raw_affiliation_string":"Great Bay University,School of Computing and Information Technology,Dongguan,China","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129893819","display_name":"Zeyi Ren","orcid":null},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Zeyi Ren","raw_affiliation_strings":["The University of Hong Kong,Department of Electrical and Electronic Engineering,Hong Kong"],"affiliations":[{"raw_affiliation_string":"The University of Hong Kong,Department of Electrical and Electronic Engineering,Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5090195902","display_name":"Qingfeng Lin","orcid":"https://orcid.org/0000-0003-0181-7437"},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Qingfeng Lin","raw_affiliation_strings":["The University of Hong Kong,Department of Electrical and Electronic Engineering,Hong Kong"],"affiliations":[{"raw_affiliation_string":"The University of Hong Kong,Department of Electrical and Electronic Engineering,Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048590247","display_name":"Ziyue Wang","orcid":"https://orcid.org/0009-0006-8941-6169"},"institutions":[{"id":"https://openalex.org/I4210158522","display_name":"PLA Academy of Military Science","ror":"https://ror.org/05ct4s596","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210158522"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ziyue Wang","raw_affiliation_strings":["LSEC, ICMSEC, AMSS,Chinese Academy of Sciences,Beijing,China"],"affiliations":[{"raw_affiliation_string":"LSEC, ICMSEC, AMSS,Chinese Academy of Sciences,Beijing,China","institution_ids":["https://openalex.org/I4210158522"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5129993994","display_name":"Ya-Feng Liu","orcid":null},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ya-Feng Liu","raw_affiliation_strings":["Beijing University of Posts and Telecommunications,School of Mathematical Sciences,Beijing,China"],"affiliations":[{"raw_affiliation_string":"Beijing University of Posts and Telecommunications,School of Mathematical Sciences,Beijing,China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5129875693","display_name":"Yik-Chung Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I889458895","display_name":"University of Hong Kong","ror":"https://ror.org/02zhqgq86","country_code":"HK","type":"education","lineage":["https://openalex.org/I889458895"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Yik-Chung Wu","raw_affiliation_strings":["The University of Hong Kong,Department of Electrical and Electronic Engineering,Hong Kong"],"affiliations":[{"raw_affiliation_string":"The University of Hong Kong,Department of Electrical and Electronic Engineering,Hong Kong","institution_ids":["https://openalex.org/I889458895"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5129781811"],"corresponding_institution_ids":["https://openalex.org/I889458895"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.65574172,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"207","last_page":"212"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.34130001068115234,"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":0.34130001068115234,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.26739999651908875,"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/T12079","display_name":"IoT Networks and Protocols","score":0.08889999985694885,"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/rendering","display_name":"Rendering (computer graphics)","score":0.5170000195503235},{"id":"https://openalex.org/keywords/coordinate-descent","display_name":"Coordinate descent","score":0.5094000101089478},{"id":"https://openalex.org/keywords/detection-theory","display_name":"Detection theory","score":0.4564000070095062},{"id":"https://openalex.org/keywords/field","display_name":"Field (mathematics)","score":0.45080000162124634},{"id":"https://openalex.org/keywords/signal-processing","display_name":"Signal processing","score":0.3959999978542328},{"id":"https://openalex.org/keywords/computation","display_name":"Computation","score":0.3698999881744385},{"id":"https://openalex.org/keywords/change-detection","display_name":"Change detection","score":0.3522999882698059}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6966999769210815},{"id":"https://openalex.org/C205711294","wikidata":"https://www.wikidata.org/wiki/Q176953","display_name":"Rendering (computer graphics)","level":2,"score":0.5170000195503235},{"id":"https://openalex.org/C157553263","wikidata":"https://www.wikidata.org/wiki/Q5168004","display_name":"Coordinate descent","level":2,"score":0.5094000101089478},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.4625000059604645},{"id":"https://openalex.org/C137270730","wikidata":"https://www.wikidata.org/wiki/Q120811","display_name":"Detection theory","level":3,"score":0.4564000070095062},{"id":"https://openalex.org/C9652623","wikidata":"https://www.wikidata.org/wiki/Q190109","display_name":"Field (mathematics)","level":2,"score":0.45080000162124634},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.4348999857902527},{"id":"https://openalex.org/C104267543","wikidata":"https://www.wikidata.org/wiki/Q208163","display_name":"Signal processing","level":3,"score":0.3959999978542328},{"id":"https://openalex.org/C45374587","wikidata":"https://www.wikidata.org/wiki/Q12525525","display_name":"Computation","level":2,"score":0.3698999881744385},{"id":"https://openalex.org/C203595873","wikidata":"https://www.wikidata.org/wiki/Q25389927","display_name":"Change detection","level":2,"score":0.3522999882698059},{"id":"https://openalex.org/C153258448","wikidata":"https://www.wikidata.org/wiki/Q1199743","display_name":"Gradient descent","level":3,"score":0.3310999870300293},{"id":"https://openalex.org/C49154492","wikidata":"https://www.wikidata.org/wiki/Q5300","display_name":"Central processing unit","level":2,"score":0.3287999927997589},{"id":"https://openalex.org/C2776151529","wikidata":"https://www.wikidata.org/wiki/Q3045304","display_name":"Object detection","level":3,"score":0.3183000087738037},{"id":"https://openalex.org/C158946198","wikidata":"https://www.wikidata.org/wiki/Q131187","display_name":"Taylor series","level":2,"score":0.2903999984264374},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.2712000012397766},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.266400009393692},{"id":"https://openalex.org/C113775141","wikidata":"https://www.wikidata.org/wiki/Q428691","display_name":"Computer engineering","level":1,"score":0.2632000148296356},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.2508000135421753}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/globecom59602.2025.11431942","is_oa":false,"landing_page_url":"https://doi.org/10.1109/globecom59602.2025.11431942","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2025 - 2025 IEEE Global Communications Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":20,"referenced_works":["https://openalex.org/W2920228847","https://openalex.org/W3010632924","https://openalex.org/W3027993135","https://openalex.org/W3080804940","https://openalex.org/W3188366979","https://openalex.org/W4200630525","https://openalex.org/W4297094903","https://openalex.org/W4312243043","https://openalex.org/W4312922447","https://openalex.org/W4385885073","https://openalex.org/W4389076530","https://openalex.org/W4390496060","https://openalex.org/W4391164391","https://openalex.org/W4394744873","https://openalex.org/W4396790117","https://openalex.org/W4400351801","https://openalex.org/W4401567372","https://openalex.org/W4401747439","https://openalex.org/W4402979687","https://openalex.org/W4414432580"],"related_works":[],"abstract_inverted_index":{"A":[0],"great":[1],"amount":[2],"of":[3,26,50,81,169],"endeavor":[4],"has":[5],"recently":[6],"been":[7],"devoted":[8],"to":[9,85,112,135],"activity":[10,66,101],"detection":[11,67,102,110,139,156],"for":[12,103,115],"massive":[13,18,70],"machine-type":[14],"communications":[15],"in":[16,21,68],"cell-free":[17,69],"MIMO.":[19],"However,":[20],"practice,":[22],"as":[23],"the":[24,29,34,39,47,79,87,91,104,109,113,127,137,149,155,161,166,170],"number":[25],"antennas":[27],"at":[28,90,141],"access":[30],"points":[31],"(APs)":[32],"increases,":[33],"Rayleigh":[35],"distance":[36],"that":[37],"separates":[38],"near-field":[40],"and":[41,72,106,164],"far-field":[42,51],"regions":[43],"also":[44],"expands,":[45],"rendering":[46],"conventional":[48],"assumption":[49],"propagation":[52],"alone":[53],"impractical.":[54],"To":[55],"address":[56],"this":[57,59],"challenge,":[58],"paper":[60],"considers":[61],"a":[62,74,82,120],"hybrid":[63,150],"near-far":[64,151],"field":[65,152],"MIMO,":[71],"establishes":[73],"covariance-based":[75],"formulation,":[76],"which":[77],"facilitates":[78],"development":[80],"distributed":[83],"algorithm":[84,124],"alleviate":[86],"computational":[88],"burden":[89],"central":[92],"processing":[93],"unit":[94],"(CPU).":[95],"Specifically,":[96],"each":[97,142],"AP":[98],"performs":[99],"local":[100,138],"devices":[105],"then":[107],"transmits":[108],"result":[111],"CPU":[114],"further":[116],"processing.":[117],"In":[118],"particular,":[119],"novel":[121],"coordinate":[122],"descent":[123],"based":[125],"on":[126],"Sherman-Morrison-Woodbury":[128],"update":[129],"with":[130,174],"Taylor":[131],"expansion":[132],"is":[133],"proposed":[134,171],"handle":[136],"problem":[140],"AP.":[143],"Moreover,":[144],"we":[145],"theoretically":[146],"analyze":[147],"how":[148],"channels":[153],"affect":[154],"performance.":[157],"Simulation":[158],"results":[159],"validate":[160],"theoretical":[162],"analysis":[163],"demonstrate":[165],"superior":[167],"performance":[168],"approach":[172],"compared":[173],"existing":[175],"approaches.":[176]},"counts_by_year":[],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2026-03-20T00:00:00"}
