{"id":"https://openalex.org/W1606159818","doi":"https://doi.org/10.1109/vtcspring.2015.7146081","title":"Separated Horizontal and Vertical Transmission Methods in Massive MIMO Systems","display_name":"Separated Horizontal and Vertical Transmission Methods in Massive MIMO Systems","publication_year":2015,"publication_date":"2015-05-01","ids":{"openalex":"https://openalex.org/W1606159818","doi":"https://doi.org/10.1109/vtcspring.2015.7146081","mag":"1606159818"},"language":"en","primary_location":{"id":"doi:10.1109/vtcspring.2015.7146081","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtcspring.2015.7146081","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 81st Vehicular Technology Conference (VTC Spring)","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/A5067915043","display_name":"Lei Song","orcid":"https://orcid.org/0000-0003-1609-2192"},"institutions":[{"id":"https://openalex.org/I4210094759","display_name":"Fujitsu (United States)","ror":"https://ror.org/0073whr05","country_code":"US","type":"company","lineage":["https://openalex.org/I2252096349","https://openalex.org/I4210094759"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Lei Song","raw_affiliation_strings":["Fujitsu Research and Development Center Co. Ltd","Fujitsu Research and Development Center Co. Ltd#TAB#"],"affiliations":[{"raw_affiliation_string":"Fujitsu Research and Development Center Co. Ltd","institution_ids":[]},{"raw_affiliation_string":"Fujitsu Research and Development Center Co. Ltd#TAB#","institution_ids":["https://openalex.org/I4210094759"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5061028507","display_name":"Xin Wang","orcid":"https://orcid.org/0000-0001-8969-1415"},"institutions":[{"id":"https://openalex.org/I4210094759","display_name":"Fujitsu (United States)","ror":"https://ror.org/0073whr05","country_code":"US","type":"company","lineage":["https://openalex.org/I2252096349","https://openalex.org/I4210094759"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Xin Wang","raw_affiliation_strings":["Fujitsu Research and Development Center Co. Ltd","Fujitsu Research and Development Center Co. Ltd#TAB#"],"affiliations":[{"raw_affiliation_string":"Fujitsu Research and Development Center Co. Ltd","institution_ids":[]},{"raw_affiliation_string":"Fujitsu Research and Development Center Co. Ltd#TAB#","institution_ids":["https://openalex.org/I4210094759"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100388312","display_name":"Yi Zhang","orcid":"https://orcid.org/0000-0003-2888-4736"},"institutions":[{"id":"https://openalex.org/I4210094759","display_name":"Fujitsu (United States)","ror":"https://ror.org/0073whr05","country_code":"US","type":"company","lineage":["https://openalex.org/I2252096349","https://openalex.org/I4210094759"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yi Zhang","raw_affiliation_strings":["Fujitsu Research and Development Center Co. Ltd","Fujitsu Research and Development Center Co. Ltd#TAB#"],"affiliations":[{"raw_affiliation_string":"Fujitsu Research and Development Center Co. Ltd","institution_ids":[]},{"raw_affiliation_string":"Fujitsu Research and Development Center Co. Ltd#TAB#","institution_ids":["https://openalex.org/I4210094759"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5054740019","display_name":"Hua Zhou","orcid":"https://orcid.org/0000-0001-8762-9773"},"institutions":[{"id":"https://openalex.org/I4210094759","display_name":"Fujitsu (United States)","ror":"https://ror.org/0073whr05","country_code":"US","type":"company","lineage":["https://openalex.org/I2252096349","https://openalex.org/I4210094759"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Hua Zhou","raw_affiliation_strings":["Fujitsu Research and Development Center Co. Ltd","Fujitsu Research and Development Center Co. Ltd#TAB#"],"affiliations":[{"raw_affiliation_string":"Fujitsu Research and Development Center Co. Ltd","institution_ids":[]},{"raw_affiliation_string":"Fujitsu Research and Development Center Co. Ltd#TAB#","institution_ids":["https://openalex.org/I4210094759"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5067915043"],"corresponding_institution_ids":["https://openalex.org/I4210094759"],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.03495123,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":null,"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":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":0.9987000226974487,"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/T10936","display_name":"Millimeter-Wave Propagation and Modeling","score":0.9973000288009644,"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/beamwidth","display_name":"Beamwidth","score":0.807396650314331},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7850927114486694},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7179326415061951},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.7052974104881287},{"id":"https://openalex.org/keywords/data-stream","display_name":"Data stream","score":0.5495983362197876},{"id":"https://openalex.org/keywords/3g-mimo","display_name":"3G MIMO","score":0.5430180430412292},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.49964237213134766},{"id":"https://openalex.org/keywords/data-stream-mining","display_name":"Data stream mining","score":0.4770333468914032},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3621191382408142},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3582638204097748},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2817625403404236},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.21355587244033813},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.15612712502479553},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.07603713870048523}],"concepts":[{"id":"https://openalex.org/C190060920","wikidata":"https://www.wikidata.org/wiki/Q4876232","display_name":"Beamwidth","level":3,"score":0.807396650314331},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7850927114486694},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7179326415061951},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.7052974104881287},{"id":"https://openalex.org/C2778484313","wikidata":"https://www.wikidata.org/wiki/Q1172540","display_name":"Data stream","level":2,"score":0.5495983362197876},{"id":"https://openalex.org/C165650700","wikidata":"https://www.wikidata.org/wiki/Q4636347","display_name":"3G MIMO","level":4,"score":0.5430180430412292},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.49964237213134766},{"id":"https://openalex.org/C89198739","wikidata":"https://www.wikidata.org/wiki/Q3079880","display_name":"Data stream mining","level":2,"score":0.4770333468914032},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3621191382408142},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3582638204097748},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2817625403404236},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.21355587244033813},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.15612712502479553},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.07603713870048523},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vtcspring.2015.7146081","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vtcspring.2015.7146081","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2015 IEEE 81st Vehicular Technology Conference (VTC Spring)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":7,"referenced_works":["https://openalex.org/W1967782717","https://openalex.org/W1989669461","https://openalex.org/W1994075152","https://openalex.org/W2064623260","https://openalex.org/W2085098436","https://openalex.org/W2160837607","https://openalex.org/W6671653601"],"related_works":["https://openalex.org/W2941374357","https://openalex.org/W2038397443","https://openalex.org/W4200145345","https://openalex.org/W1561113522","https://openalex.org/W4389449520","https://openalex.org/W1495906304","https://openalex.org/W4390496060","https://openalex.org/W127192698","https://openalex.org/W2112785353","https://openalex.org/W2164866798"],"abstract_inverted_index":{"Massive":[0],"MIMO":[1,28,76],"is":[2,143],"a":[3,123],"promising":[4],"technology":[5],"in":[6,34,48,74,85,110],"5G":[7],"communications,":[8],"it":[9],"can":[10,57,65],"provide":[11],"large":[12],"numbers":[13],"of":[14,113,132],"antennas":[15],"and":[16,44,106,116,129],"form":[17],"accurate":[18],"beams":[19],"to":[20,89,146],"the":[21,30,45,70,86,111,127,130,148],"users.":[22],"In":[23,60,97],"conventional":[24],"three":[25],"dimensional":[26],"(3D)":[27],"studies,":[29],"antenna":[31,42,83],"elements":[32],"(AEs)":[33],"one":[35,41,82],"column":[36],"are":[37],"usually":[38],"virtualized":[39],"as":[40],"port":[43,84,104],"transmission":[46,64,93,108],"schemes":[47],"long":[49],"term":[50],"evolution":[51],"system":[52],"(LTE)":[53],"or":[54],"other":[55],"systems":[56,77],"be":[58,67,95],"reused.":[59],"this":[61,98],"case,":[62],"multi-stream":[63,107,149],"only":[66],"supported":[68,134],"by":[69],"horizontal":[71,115],"direction.":[72],"While":[73],"massive":[75],"with":[78],"more":[79],"AEs,":[80],"forming":[81],"vertical":[87,117],"direction":[88],"support":[90],"single":[91],"stream":[92],"will":[94],"inefficient.":[96],"paper,":[99],"we":[100],"propose":[101],"two":[102],"joint":[103],"virtualization":[105],"algorithms":[109,121],"framework":[112],"separated":[114],"feedback.":[118],"The":[119],"proposed":[120,145],"make":[122],"better":[124],"tradeoff":[125],"between":[126],"beamwidth":[128],"number":[131],"simultaneously":[133],"data":[135],"streams.":[136],"A":[137],"rank":[138],"indication":[139],"(RI)":[140],"feedback":[141],"scheme":[142],"also":[144],"assist":[147],"transmission.":[150]},"counts_by_year":[],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
