{"id":"https://openalex.org/W3040156020","doi":"https://doi.org/10.1109/vtc2020-spring48590.2020.9129102","title":"Two Millimeter-Wave Base Station Cooperation Technologies in High-Mobility Environments for 5G Evolution","display_name":"Two Millimeter-Wave Base Station Cooperation Technologies in High-Mobility Environments for 5G Evolution","publication_year":2020,"publication_date":"2020-05-01","ids":{"openalex":"https://openalex.org/W3040156020","doi":"https://doi.org/10.1109/vtc2020-spring48590.2020.9129102","mag":"3040156020"},"language":"en","primary_location":{"id":"doi:10.1109/vtc2020-spring48590.2020.9129102","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtc2020-spring48590.2020.9129102","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)","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/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":["5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008239623","display_name":"Satoshi Ssuyama","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":"Satoshi Ssuyama","raw_affiliation_strings":["5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan","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":["5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021741369","display_name":"Yukihiko Okumura","orcid":"https://orcid.org/0000-0002-9467-7041"},"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":"Yukihiko Okumura","raw_affiliation_strings":["5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan","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":["5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"5G Laboratories, NTT DOCOMO, INC, 3-6 Hikari-no-oka, Yokosuka-shi, Kanagawa-ken, Japan","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":2.147,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.86941239,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":93,"max":96},"biblio":{"volume":"31","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":0.9997000098228455,"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":0.9995999932289124,"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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9977999925613403,"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/mimo","display_name":"MIMO","score":0.7516442537307739},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.7218251824378967},{"id":"https://openalex.org/keywords/baseband","display_name":"Baseband","score":0.6872758865356445},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6585731506347656},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6027166843414307},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.597667932510376},{"id":"https://openalex.org/keywords/extremely-high-frequency","display_name":"Extremely high frequency","score":0.5377739667892456},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5153012275695801},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.44971004128456116},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.41974249482154846},{"id":"https://openalex.org/keywords/enhanced-data-rates-for-gsm-evolution","display_name":"Enhanced Data Rates for GSM Evolution","score":0.41824156045913696},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3864477276802063},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.37289294600486755},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.23924881219863892}],"concepts":[{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7516442537307739},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.7218251824378967},{"id":"https://openalex.org/C65165936","wikidata":"https://www.wikidata.org/wiki/Q575784","display_name":"Baseband","level":3,"score":0.6872758865356445},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6585731506347656},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6027166843414307},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.597667932510376},{"id":"https://openalex.org/C45764600","wikidata":"https://www.wikidata.org/wiki/Q570342","display_name":"Extremely high frequency","level":2,"score":0.5377739667892456},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5153012275695801},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.44971004128456116},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.41974249482154846},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.41824156045913696},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3864477276802063},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.37289294600486755},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.23924881219863892}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vtc2020-spring48590.2020.9129102","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtc2020-spring48590.2020.9129102","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2020 IEEE 91st Vehicular Technology Conference (VTC2020-Spring)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/17","display_name":"Partnerships for the goals","score":0.5299999713897705}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1538083016","https://openalex.org/W1657069511","https://openalex.org/W2045840914","https://openalex.org/W2054956624","https://openalex.org/W2098126478","https://openalex.org/W2785913153","https://openalex.org/W2787866323","https://openalex.org/W2916416596"],"related_works":["https://openalex.org/W2548963335","https://openalex.org/W2159941915","https://openalex.org/W2962882802","https://openalex.org/W2265126353","https://openalex.org/W4365807906","https://openalex.org/W2157864637","https://openalex.org/W4223416141","https://openalex.org/W2546639359","https://openalex.org/W2105999282","https://openalex.org/W1922070205"],"abstract_inverted_index":{"Commercial":[0],"services":[1],"in":[2,28,84,94,124,164],"5G":[3,13,37],"have":[4],"already":[5],"started":[6],"all":[7],"over":[8],"the":[9,25,49,85,115,136,155],"world.":[10],"The":[11,118],"initial":[12],"introduces":[14],"analog":[15,50],"beamforming":[16],"(BF)":[17],"by":[18,132],"Massive":[19],"MIMO":[20],"(M-MIMO)":[21],"to":[22,43,61,77,128,143],"compensate":[23],"for":[24,46,75,114],"larger":[26],"path-loss":[27],"millimeter-wave":[29],"(mmW)":[30],"bands":[31],"such":[32],"as":[33],"28":[34],"GHz.":[35],"In":[36,67],"Evolution":[38],"(5GE)":[39],"that":[40,106,154],"is":[41],"expected":[42],"be":[44,53],"realized":[45],"around":[47],"2025,":[48],"BF":[51,60],"will":[52],"replaced":[54],"with":[55,146],"hybrid":[56,116],"or":[57],"fully":[58],"digital":[59],"improve":[62],"mmW-band":[63],"downlink/uplink":[64],"transmission":[65,83,162],"performances.":[66],"addition,":[68],"new":[69],"radio":[70],"access":[71],"technologies":[72,105],"are":[73,107],"required":[74],"5GE":[76],"provide":[78],"stable":[79],"and":[80,111,135,168],"reliable":[81],"cell-edge":[82],"mmW":[86,101],"bands,":[87],"even":[88],"when":[89],"mobile":[90],"stations":[91],"(MSs)":[92],"travel":[93],"high":[95],"mobility.":[96],"This":[97],"paper":[98],"proposes":[99],"two":[100,121,125,139,167],"base":[102],"station":[103],"cooperation":[104,113,157],"inter-baseband":[108],"unit":[109,131],"(inter-BBU)":[110],"intra-BBU":[112,156],"BF.":[117],"former":[119],"exploits":[120],"M-MIMO":[122,140],"antennas":[123,141],"BBUs":[126],"connected":[127,142],"one":[129,144],"central":[130],"limited-bandwidth":[133],"fronthaul,":[134],"latter":[137],"cooperates":[138],"BBU":[145],"Doppler":[147],"frequency":[148],"shift":[149],"compensation.":[150],"Computer":[151],"simulations":[152],"verify":[153],"can":[158],"achieve":[159],"an":[160],"excellent":[161],"performance":[163],"cases":[165],"of":[166,175],"four":[169],"MSs":[170],"moving":[171],"at":[172],"a":[173],"velocity":[174],"90":[176],"km/h.":[177]},"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":2}],"updated_date":"2026-07-29T14:22:42.915294","created_date":"2025-10-10T00:00:00"}