{"id":"https://openalex.org/W4323519652","doi":"https://doi.org/10.1587/transcom.2022fgt0001","title":"Uplink Postcoding in User-Cluster-Centric Cell-Free Massive MIMO","display_name":"Uplink Postcoding in User-Cluster-Centric Cell-Free Massive MIMO","publication_year":2023,"publication_date":"2023-03-07","ids":{"openalex":"https://openalex.org/W4323519652","doi":"https://doi.org/10.1587/transcom.2022fgt0001"},"language":"en","primary_location":{"id":"doi:10.1587/transcom.2022fgt0001","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1587/transcom.2022fgt0001","pdf_url":null,"source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Communications","raw_type":"journal-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/A5100727101","display_name":"Ryo Takahashi","orcid":null},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Ryo TAKAHASHI","raw_affiliation_strings":["Tohoku University"],"affiliations":[{"raw_affiliation_string":"Tohoku University","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5069645001","display_name":"Hidenori Matsuo","orcid":null},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hidenori MATSUO","raw_affiliation_strings":["Tohoku University"],"affiliations":[{"raw_affiliation_string":"Tohoku University","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102433132","display_name":"Sijie Xia","orcid":null},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Sijie XIA","raw_affiliation_strings":["Tohoku University"],"affiliations":[{"raw_affiliation_string":"Tohoku University","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5013725821","display_name":"Qiang Chen","orcid":"https://orcid.org/0000-0002-2950-091X"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Qiang CHEN","raw_affiliation_strings":["Tohoku University"],"affiliations":[{"raw_affiliation_string":"Tohoku University","institution_ids":["https://openalex.org/I201537933"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5011281064","display_name":"Fumiyuki Adachi","orcid":"https://orcid.org/0000-0002-5416-0718"},"institutions":[{"id":"https://openalex.org/I201537933","display_name":"Tohoku University","ror":"https://ror.org/01dq60k83","country_code":"JP","type":"education","lineage":["https://openalex.org/I201537933"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Fumiyuki ADACHI","raw_affiliation_strings":["Tohoku University"],"affiliations":[{"raw_affiliation_string":"Tohoku University","institution_ids":["https://openalex.org/I201537933"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5100727101"],"corresponding_institution_ids":["https://openalex.org/I201537933"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.01399823,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"E106.B","issue":"9","first_page":"748","last_page":"757"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":1.0,"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":1.0,"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9994999766349792,"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/T11458","display_name":"Advanced Wireless Communication Technologies","score":0.9983000159263611,"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/computer-science","display_name":"Computer science","score":0.8478370308876038},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.7971092462539673},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5803859829902649},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.5584836006164551},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.4955335855484009},{"id":"https://openalex.org/keywords/multi-user","display_name":"Multi-user","score":0.4833645224571228},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.45786741375923157},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.4343898296356201},{"id":"https://openalex.org/keywords/user-equipment","display_name":"User equipment","score":0.41848987340927124},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.27476245164871216},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.16727817058563232}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8478370308876038},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.7971092462539673},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5803859829902649},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.5584836006164551},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.4955335855484009},{"id":"https://openalex.org/C2778002699","wikidata":"https://www.wikidata.org/wiki/Q876057","display_name":"Multi-user","level":2,"score":0.4833645224571228},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.45786741375923157},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.4343898296356201},{"id":"https://openalex.org/C2781327853","wikidata":"https://www.wikidata.org/wiki/Q3552547","display_name":"User equipment","level":3,"score":0.41848987340927124},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.27476245164871216},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.16727817058563232},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1587/transcom.2022fgt0001","is_oa":false,"landing_page_url":"http://dx.doi.org/10.1587/transcom.2022fgt0001","pdf_url":null,"source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W2770606349","https://openalex.org/W2965123227","https://openalex.org/W2984946651","https://openalex.org/W3215327823","https://openalex.org/W4210850169","https://openalex.org/W4225619413","https://openalex.org/W4293231983","https://openalex.org/W4309157822"],"related_works":["https://openalex.org/W2093781471","https://openalex.org/W2464133426","https://openalex.org/W1906137891","https://openalex.org/W4281712223","https://openalex.org/W2801697760","https://openalex.org/W2012577227","https://openalex.org/W2570948318","https://openalex.org/W3037818400","https://openalex.org/W4311628410","https://openalex.org/W2135897046"],"abstract_inverted_index":{"Cell-free":[0],"massive":[1],"MIMO":[2],"(CF-mMIMO),":[3],"which":[4,113],"cooperatively":[5],"utilizes":[6],"a":[7,14,43,109,118],"large":[8],"number":[9,87,124,190],"of":[10,88,96,125,143,150,154,188,191],"antennas":[11,60,126],"deployed":[12],"over":[13],"communication":[15],"area,":[16],"has":[17],"been":[18],"attracting":[19],"great":[20],"attention":[21],"as":[22],"an":[23],"important":[24],"technology":[25],"for":[26,61,130],"realizing":[27],"5G-advanced":[28],"and":[29,37,64,120,139,168,174,198],"6G":[30],"systems.":[31],"Recently,":[32],"to":[33,68,93,127],"ensure":[34],"system":[35],"scalability":[36],"mitigate":[38],"inter-user":[39],"interference":[40,72],"in":[41,79,148,195],"CF-mMIMO,":[42],"user-centric":[44,53],"(UC)":[45],"approach":[46,147,180],"was":[47],"investigated.":[48],"In":[49,104],"this":[50,105,128],"UC":[51,167],"approach,":[52,112],"antenna-sets":[54,76],"are":[55],"formed":[56],"by":[57,171],"selecting":[58],"appropriate":[59],"each":[62],"user,":[63],"postcoding":[65,137,203],"is":[66,181],"applied":[67],"reduce":[69],"the":[70,86,98,122,135,141,144,151,155,161,178,186,189,196,207],"strong":[71],"from":[73],"users":[74,90,116,193],"whose":[75],"overlap.":[77],"However,":[78],"very":[80],"high":[81],"user":[82,163,208],"density":[83],"environments,":[84],"since":[85],"interfering":[89,192],"increases":[91],"due":[92],"increased":[94],"overlapping":[95],"antenna-sets,":[97],"achievable":[99,165],"link":[100],"capacity":[101],"may":[102],"degrade.":[103],"paper,":[106],"we":[107,184],"propose":[108],"user-cluster-centric":[110],"(UCC)":[111],"groups":[114],"neighborhood":[115],"into":[117],"user-cluster":[119,129],"associates":[121],"predetermined":[123],"spatial":[131],"multiplexing.":[132],"We":[133,158],"derive":[134],"uplink":[136,162],"weights":[138],"explain":[140],"effectiveness":[142],"proposed":[145],"UCC":[146,169,179],"terms":[149],"computational":[152],"complexity":[153],"weight":[156,204],"computation.":[157],"also":[159],"compare":[160],"capacities":[164],"with":[166],"approaches":[170],"computer":[172],"simulation":[173],"clarify":[175],"situations":[176],"where":[177],"effective.":[182],"Furthermore,":[183],"discuss":[185],"impact":[187],"considered":[194],"zero-forcing":[197],"minimum":[199],"mean":[200],"square":[201],"error":[202],"computation":[205],"on":[206],"capacity.":[209]},"counts_by_year":[],"updated_date":"2025-12-21T23:12:01.093139","created_date":"2025-10-10T00:00:00"}
