{"id":"https://openalex.org/W4214908639","doi":"https://doi.org/10.1109/rws53089.2022.9719949","title":"Recent Studies on Massive MIMO Technologies for 5G Evolution and 6G","display_name":"Recent Studies on Massive MIMO Technologies for 5G Evolution and 6G","publication_year":2022,"publication_date":"2022-01-16","ids":{"openalex":"https://openalex.org/W4214908639","doi":"https://doi.org/10.1109/rws53089.2022.9719949"},"language":"en","primary_location":{"id":"doi:10.1109/rws53089.2022.9719949","is_oa":false,"landing_page_url":"https://doi.org/10.1109/rws53089.2022.9719949","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE Radio and Wireless Symposium (RWS)","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/A5068970069","display_name":"Satoshi Suyama","orcid":"https://orcid.org/0000-0002-1451-2125"},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Satoshi Suyama","raw_affiliation_strings":["NTT DOCOMO, INC.,6G-IOWN Promotion Department,Yokosuka-shi,Kanagawa-ken,Japan,239-8536"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC.,6G-IOWN Promotion Department,Yokosuka-shi,Kanagawa-ken,Japan,239-8536","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5105973605","display_name":"Tatsuki Okuyama","orcid":null},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tatsuki Okuyama","raw_affiliation_strings":["NTT DOCOMO, INC.,6G-IOWN Promotion Department,Yokosuka-shi,Kanagawa-ken,Japan,239-8536"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC.,6G-IOWN Promotion Department,Yokosuka-shi,Kanagawa-ken,Japan,239-8536","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075121038","display_name":"Nobuhide Nonaka","orcid":null},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Nobuhide Nonaka","raw_affiliation_strings":["NTT DOCOMO, INC.,6G-IOWN Promotion Department,Yokosuka-shi,Kanagawa-ken,Japan,239-8536"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC.,6G-IOWN Promotion Department,Yokosuka-shi,Kanagawa-ken,Japan,239-8536","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110932903","display_name":"Takahiro Asai","orcid":null},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Takahiro Asai","raw_affiliation_strings":["NTT DOCOMO, INC.,6G-IOWN Promotion Department,Yokosuka-shi,Kanagawa-ken,Japan,239-8536"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC.,6G-IOWN Promotion Department,Yokosuka-shi,Kanagawa-ken,Japan,239-8536","institution_ids":["https://openalex.org/I2251713219"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I2251713219"],"apc_list":null,"apc_paid":null,"fwci":20.6505,"has_fulltext":false,"cited_by_count":52,"citation_normalized_percentile":{"value":0.99844961,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":null,"issue":null,"first_page":"90","last_page":"93"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9997000098228455,"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":0.9997000098228455,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9994000196456909,"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/T13905","display_name":"Telecommunications and Broadcasting Technologies","score":0.9940000176429749,"subfield":{"id":"https://openalex.org/subfields/2214","display_name":"Media Technology"},"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/mimo","display_name":"MIMO","score":0.8643741011619568},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.745332658290863},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.59739089012146},{"id":"https://openalex.org/keywords/extremely-high-frequency","display_name":"Extremely high frequency","score":0.591023325920105},{"id":"https://openalex.org/keywords/terahertz-radiation","display_name":"Terahertz radiation","score":0.570915937423706},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.548197329044342},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.543245255947113},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.51433265209198},{"id":"https://openalex.org/keywords/3g-mimo","display_name":"3G MIMO","score":0.5019245147705078},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.47276952862739563},{"id":"https://openalex.org/keywords/high-data-rate","display_name":"High data rate","score":0.46224239468574524},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.45467409491539},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.415263295173645},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.31825459003448486},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.22761499881744385},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.18533039093017578},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.09303620457649231}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.8643741011619568},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.745332658290863},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.59739089012146},{"id":"https://openalex.org/C45764600","wikidata":"https://www.wikidata.org/wiki/Q570342","display_name":"Extremely high frequency","level":2,"score":0.591023325920105},{"id":"https://openalex.org/C107816215","wikidata":"https://www.wikidata.org/wiki/Q647887","display_name":"Terahertz radiation","level":2,"score":0.570915937423706},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.548197329044342},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.543245255947113},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.51433265209198},{"id":"https://openalex.org/C165650700","wikidata":"https://www.wikidata.org/wiki/Q4636347","display_name":"3G MIMO","level":4,"score":0.5019245147705078},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.47276952862739563},{"id":"https://openalex.org/C3019438356","wikidata":"https://www.wikidata.org/wiki/Q155028","display_name":"High data rate","level":3,"score":0.46224239468574524},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.45467409491539},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.415263295173645},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.31825459003448486},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.22761499881744385},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.18533039093017578},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.09303620457649231}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/rws53089.2022.9719949","is_oa":false,"landing_page_url":"https://doi.org/10.1109/rws53089.2022.9719949","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2022 IEEE Radio and Wireless Symposium (RWS)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4300000071525574,"id":"https://metadata.un.org/sdg/17","display_name":"Partnerships for the goals"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W1657069511","https://openalex.org/W2907867398","https://openalex.org/W3038208462","https://openalex.org/W3040156020","https://openalex.org/W3147714662","https://openalex.org/W4200436269"],"related_works":["https://openalex.org/W2568632139","https://openalex.org/W3135671888","https://openalex.org/W2572173143","https://openalex.org/W3167757980","https://openalex.org/W2028257426","https://openalex.org/W3139731497","https://openalex.org/W2045321542","https://openalex.org/W2130542150","https://openalex.org/W2747654081","https://openalex.org/W2015965957"],"abstract_inverted_index":{"A":[0],"massive":[1],"multiple-input":[2],"multiple-output":[3],"(M-MIMO)":[4],"technology":[5],"was":[6],"introduced":[7],"for":[8,91,105],"5G":[9,23],"in":[10,42,110,144],"millimeter-wave":[11],"(mmW)":[12],"bands":[13],"such":[14],"as":[15],"28":[16],"GHz.":[17],"Further":[18],"enhancement":[19],"of":[20,100],"5G,":[21],"so-called":[22,66],"Evolution":[24],"(5GE)":[25],"is":[26,62],"expected":[27],"to":[28,44,75],"exploit":[29],"advanced":[30],"beamforming":[31],"technologies":[32,35,90,104],"and":[33,48,64,93,122],"M-MIMO":[34,89,101,116,142],"combined":[36],"with":[37],"base":[38],"station":[39],"(BS)":[40],"cooperation":[41,103],"order":[43],"achieve":[45],"more":[46],"stable":[47],"higher":[49],"data-rate":[50],"mmW":[51,106],"transmission.":[52],"For":[53,108],"6G,":[54,109],"extremely":[55],"high":[56],"data":[57],"rate":[58],"exceeding":[59],"100":[60,73,114,129],"Gbps":[61,119],"required,":[63],"hence":[65],"sub-terahertz":[67],"wave":[68],"targeting":[69],"the":[70],"frequency":[71],"from":[72],"GHz":[74,77],"300":[76],"has":[78],"attracted":[79],"much":[80],"attention.":[81],"This":[82],"paper":[83],"introduces":[84],"our":[85,136],"recent":[86],"studies":[87],"on":[88],"5GE":[92],"6G.":[94],"Concretely,":[95],"it":[96],"shows":[97],"experimental":[98],"results":[99],"BS":[102],"5GE.":[107],"link-level":[111],"simulations":[112],"using":[113],"GHz-band":[115,130],"technology,":[117],"over-100":[118],"downlink":[120],"throughput":[121],"coverage":[123],"performances":[124,132],"are":[125,133],"clarified.":[126],"In":[127],"addition,":[128],"system-level":[131],"shown":[134],"by":[135],"developed":[137],"6G":[138],"simulator":[139],"employing":[140],"multiple":[141],"BSs":[143],"a":[145],"future":[146],"shopping":[147],"mall":[148],"environment.":[149]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":16},{"year":2024,"cited_by_count":16},{"year":2023,"cited_by_count":12},{"year":2022,"cited_by_count":6}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}