{"id":"https://openalex.org/W3138073394","doi":"https://doi.org/10.1587/transcom.2020fgp0013","title":"Base Station Cooperation Technologies Using 28GHz-Band Digital Beamforming in High-Mobility Environments","display_name":"Base Station Cooperation Technologies Using 28GHz-Band Digital Beamforming in High-Mobility Environments","publication_year":2021,"publication_date":"2021-03-22","ids":{"openalex":"https://openalex.org/W3138073394","doi":"https://doi.org/10.1587/transcom.2020fgp0013","mag":"3138073394"},"language":"en","primary_location":{"id":"doi:10.1587/transcom.2020fgp0013","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2020fgp0013","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E104.B/9/E104.B_2020FGP0013/_pdf","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":true,"oa_status":"bronze","oa_url":"https://www.jstage.jst.go.jp/article/transcom/E104.B/9/E104.B_2020FGP0013/_pdf","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5105973605","display_name":"Tatsuki Okuyama","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tatsuki OKUYAMA","raw_affiliation_strings":["NTT DOCOMO, INC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075121038","display_name":"Nobuhide Nonaka","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Nobuhide NONAKA","raw_affiliation_strings":["NTT DOCOMO, INC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5068970069","display_name":"Satoshi Suyama","orcid":"https://orcid.org/0000-0002-1451-2125"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Satoshi SUYAMA","raw_affiliation_strings":["NTT DOCOMO, INC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5021741369","display_name":"Yukihiko Okumura","orcid":"https://orcid.org/0000-0002-9467-7041"},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Yukihiko OKUMURA","raw_affiliation_strings":["NTT DOCOMO, INC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5110932903","display_name":"Takahiro Asai","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Takahiro ASAI","raw_affiliation_strings":["NTT DOCOMO, INC"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT DOCOMO, INC","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4029,"has_fulltext":true,"cited_by_count":5,"citation_normalized_percentile":{"value":0.55190971,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":95},"biblio":{"volume":"E104.B","issue":"9","first_page":"1009","last_page":"1016"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10936","display_name":"Millimeter-Wave Propagation and Modeling","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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","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/T10262","display_name":"Microwave Engineering and Waveguides","score":0.9991000294685364,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9986000061035156,"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":0.7711905241012573},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6995437145233154},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.6821979284286499},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.6790558695793152},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6369022130966187},{"id":"https://openalex.org/keywords/baseband","display_name":"Baseband","score":0.5387287139892578},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.4816228747367859},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.42000848054885864},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3671685755252838},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.36312294006347656},{"id":"https://openalex.org/keywords/bandwidth","display_name":"Bandwidth (computing)","score":0.35329073667526245},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.347257137298584},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.08359965682029724}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7711905241012573},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6995437145233154},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.6821979284286499},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.6790558695793152},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6369022130966187},{"id":"https://openalex.org/C65165936","wikidata":"https://www.wikidata.org/wiki/Q575784","display_name":"Baseband","level":3,"score":0.5387287139892578},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.4816228747367859},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.42000848054885864},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3671685755252838},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.36312294006347656},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.35329073667526245},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.347257137298584},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.08359965682029724},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1587/transcom.2020fgp0013","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2020fgp0013","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E104.B/9/E104.B_2020FGP0013/_pdf","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":{"id":"doi:10.1587/transcom.2020fgp0013","is_oa":true,"landing_page_url":"https://doi.org/10.1587/transcom.2020fgp0013","pdf_url":"https://www.jstage.jst.go.jp/article/transcom/E104.B/9/E104.B_2020FGP0013/_pdf","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"},"sustainable_development_goals":[{"score":0.5400000214576721,"id":"https://metadata.un.org/sdg/17","display_name":"Partnerships for the goals"}],"awards":[{"id":"https://openalex.org/G1613875913","display_name":null,"funder_award_id":"JPJ000254\u201d","funder_id":"https://openalex.org/F4320325628","funder_display_name":"Ministry of Internal Affairs and Communications"}],"funders":[{"id":"https://openalex.org/F4320325628","display_name":"Ministry of Internal Affairs and Communications","ror":"https://ror.org/00vs1pz50"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3138073394.pdf","grobid_xml":"https://content.openalex.org/works/W3138073394.grobid-xml"},"referenced_works_count":18,"referenced_works":["https://openalex.org/W1538083016","https://openalex.org/W1657069511","https://openalex.org/W2045840914","https://openalex.org/W2049791297","https://openalex.org/W2054956624","https://openalex.org/W2125977229","https://openalex.org/W2514869044","https://openalex.org/W2543204591","https://openalex.org/W2785913153","https://openalex.org/W2786830845","https://openalex.org/W2787866323","https://openalex.org/W2793262151","https://openalex.org/W2907867398","https://openalex.org/W2916416596","https://openalex.org/W2917219069","https://openalex.org/W3038208462","https://openalex.org/W3040156020","https://openalex.org/W3129915843"],"related_works":["https://openalex.org/W4281688526","https://openalex.org/W2152088989","https://openalex.org/W2756419127","https://openalex.org/W4366493479","https://openalex.org/W2401571617","https://openalex.org/W2489379490","https://openalex.org/W2141031289","https://openalex.org/W2744170735","https://openalex.org/W2724724053","https://openalex.org/W2561058892"],"abstract_inverted_index":{"The":[0,121],"fifth-generation":[1],"(5G)":[2],"mobile":[3,55],"communications":[4],"system":[5,73],"initially":[6],"introduced":[7],"massive":[8],"multiple-input":[9],"multiple-output":[10],"(M-MIMO)":[11],"with":[12,150],"analog":[13,60],"beamforming":[14],"(BF)":[15],"to":[16,71,89,132,147],"compensate":[17],"for":[18,116],"the":[19,36,76,91,117,140,160,178,204,210,214],"larger":[20],"path-loss":[21],"in":[22,47,75,97,128,187,217],"millimeter-wave":[23],"(mmW)":[24],"bands.":[25],"To":[26],"solve":[27],"a":[28,196,218,230],"coverage":[29],"issue":[30],"and":[31,59,113,139,168,191],"support":[32],"high":[33,98],"mobility":[34],"of":[35,159,189,198,233],"mmW":[37,77,104],"bands,":[38,78],"base":[39],"station":[40,56],"(BS)":[41],"cooperation":[42,106,115,123,162,180,212,223],"technologies":[43,107,163],"have":[44],"been":[45],"investigated":[46],"high-mobility":[48],"environments.":[49],"However,":[50],"previous":[51],"works":[52],"assume":[53],"one":[54,133,148,226],"(MS)":[57],"scenario":[58],"BF":[61,81],"that":[62,82,108,176,177,209],"does":[63],"not":[64],"suppress":[65,90],"interference":[66,92],"among":[67],"MSs.":[68],"In":[69],"order":[70],"improve":[72],"performance":[74,186],"fully":[79,118],"digital":[80,84,119],"includes":[83],"precoding":[85],"should":[86],"be":[87],"employed":[88],"even":[93],"when":[94,224],"MSs":[95,193],"travel":[96],"mobility.":[99],"This":[100,155],"paper":[101,156],"proposes":[102],"two":[103,125,129,143,190],"BS":[105,161],"are":[109],"inter-baseband":[110],"unit":[111,135],"(inter-BBU)":[112],"intra-BBU":[114,141,179],"BF.":[120],"inter-BBU":[122,211],"exploits":[124],"M-MIMO":[126,144],"antennas":[127,145],"BBUs":[130],"connected":[131,146],"central":[134],"by":[136,164,200],"limited-bandwidth":[137],"fronthaul,":[138],"cooperates":[142],"BBU":[149],"Doppler":[151],"frequency":[152],"shift":[153],"compensation.":[154],"verifies":[157],"effectiveness":[158],"both":[165],"computer":[166,201],"simulations":[167],"outdoor":[169,205],"experimental":[170,206],"trials.":[171],"First,":[172],"it":[173],"is":[174],"shown":[175],"can":[181],"achieve":[182],"an":[183],"excellent":[184],"transmission":[185],"cases":[188],"four":[192],"moving":[194],"at":[195,229],"velocity":[197,232],"90km/h":[199],"simulations.":[202],"Second,":[203],"trials":[207],"clarifies":[208],"maintains":[213],"maximum":[215,231],"throughput":[216],"wider":[219],"area":[220],"than":[221],"non-BS":[222],"only":[225],"MS":[227],"moves":[228],"120km/h.":[234]},"counts_by_year":[{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2}],"updated_date":"2026-08-08T07:41:36.138363","created_date":"2025-10-10T00:00:00"}