{"id":"https://openalex.org/W2805086195","doi":"https://doi.org/10.1109/access.2018.2845666","title":"Spectral Efficiency of Massive MIMO Systems With Multiple Sub-Arrays Antenna","display_name":"Spectral Efficiency of Massive MIMO Systems With Multiple Sub-Arrays Antenna","publication_year":2018,"publication_date":"2018-01-01","ids":{"openalex":"https://openalex.org/W2805086195","doi":"https://doi.org/10.1109/access.2018.2845666","mag":"2805086195"},"language":"en","primary_location":{"id":"doi:10.1109/access.2018.2845666","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2018.2845666","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2018.2845666","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5067538819","display_name":"Weijie Tan","orcid":"https://orcid.org/0000-0001-6590-5757"},"institutions":[{"id":"https://openalex.org/I17145004","display_name":"Northwestern Polytechnical University","ror":"https://ror.org/01y0j0j86","country_code":"CN","type":"education","lineage":["https://openalex.org/I17145004"]},{"id":"https://openalex.org/I37987034","display_name":"Guangzhou University","ror":"https://ror.org/05ar8rn06","country_code":"CN","type":"education","lineage":["https://openalex.org/I37987034"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Weijie Tan","raw_affiliation_strings":["School of Computer Science, Guangzhou University, Guangzhou, China","School of Marine Science and Technology, Northwestern Polytechnical University, Xi\u2019an, China","ORCiD","School of Marine Science and Technology, Northwestern Polytechnical University, Xi&#x2019;an, China"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Guangzhou University, Guangzhou, China","institution_ids":["https://openalex.org/I37987034"]},{"raw_affiliation_string":"School of Marine Science and Technology, Northwestern Polytechnical University, Xi\u2019an, China","institution_ids":["https://openalex.org/I17145004"]},{"raw_affiliation_string":"ORCiD","institution_ids":[]},{"raw_affiliation_string":"School of Marine Science and Technology, Northwestern Polytechnical University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I17145004"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101141043","display_name":"Xi\u2019an Feng","orcid":null},"institutions":[{"id":"https://openalex.org/I17145004","display_name":"Northwestern Polytechnical University","ror":"https://ror.org/01y0j0j86","country_code":"CN","type":"education","lineage":["https://openalex.org/I17145004"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xi'an Feng","raw_affiliation_strings":["School of Marine Science and Technology, Northwestern Polytechnical University, Xi\u2019an, China","School of Marine Science and Technology, Northwestern Polytechnical University, Xi&#x2019;an, China"],"affiliations":[{"raw_affiliation_string":"School of Marine Science and Technology, Northwestern Polytechnical University, Xi\u2019an, China","institution_ids":["https://openalex.org/I17145004"]},{"raw_affiliation_string":"School of Marine Science and Technology, Northwestern Polytechnical University, Xi&#x2019;an, China","institution_ids":["https://openalex.org/I17145004"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5076706292","display_name":"Guiyun Liu","orcid":"https://orcid.org/0000-0002-4830-8878"},"institutions":[{"id":"https://openalex.org/I37987034","display_name":"Guangzhou University","ror":"https://ror.org/05ar8rn06","country_code":"CN","type":"education","lineage":["https://openalex.org/I37987034"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Guiyun Liu","raw_affiliation_strings":["School of Mechanical and Electric Engineering, Guangzhou University, Guangzhou, China"],"affiliations":[{"raw_affiliation_string":"School of Mechanical and Electric Engineering, Guangzhou University, Guangzhou, China","institution_ids":["https://openalex.org/I37987034"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5075251557","display_name":"Weiqiang Tan","orcid":"https://orcid.org/0000-0002-6055-5900"},"institutions":[{"id":"https://openalex.org/I17145004","display_name":"Northwestern Polytechnical University","ror":"https://ror.org/01y0j0j86","country_code":"CN","type":"education","lineage":["https://openalex.org/I17145004"]},{"id":"https://openalex.org/I37987034","display_name":"Guangzhou University","ror":"https://ror.org/05ar8rn06","country_code":"CN","type":"education","lineage":["https://openalex.org/I37987034"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weiqiang Tan","raw_affiliation_strings":["School of Computer Science, Guangzhou University, Guangzhou, China","School of Marine Science and Technology, Northwestern Polytechnical University, Xi\u2019an, China","ORCiD"],"affiliations":[{"raw_affiliation_string":"School of Computer Science, Guangzhou University, Guangzhou, China","institution_ids":["https://openalex.org/I37987034"]},{"raw_affiliation_string":"School of Marine Science and Technology, Northwestern Polytechnical University, Xi\u2019an, China","institution_ids":["https://openalex.org/I17145004"]},{"raw_affiliation_string":"ORCiD","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037835022","display_name":"Mu Zhou","orcid":"https://orcid.org/0000-0003-3533-2227"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Mu Zhou","raw_affiliation_strings":["Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing, China"],"affiliations":[{"raw_affiliation_string":"Chongqing Key Laboratory of Mobile Communications Technology, Chongqing University of Posts and Telecommunications, Chongqing, China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5054987546","display_name":"Chunguo Li","orcid":"https://orcid.org/0000-0001-9217-4523"},"institutions":[{"id":"https://openalex.org/I76569877","display_name":"Southeast University","ror":"https://ror.org/04ct4d772","country_code":"CN","type":"education","lineage":["https://openalex.org/I76569877"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Chunguo Li","raw_affiliation_strings":["National Communications Research Laboratory, Southeast University, Nanjing, China"],"affiliations":[{"raw_affiliation_string":"National Communications Research Laboratory, Southeast University, Nanjing, China","institution_ids":["https://openalex.org/I76569877"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5067538819"],"corresponding_institution_ids":["https://openalex.org/I17145004","https://openalex.org/I37987034"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":0.655,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.70842946,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":"6","issue":null,"first_page":"31213","last_page":"31223"},"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/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/T10069","display_name":"Antenna Design and Analysis","score":0.9991000294685364,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/precoding","display_name":"Precoding","score":0.8527855277061462},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7704380750656128},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.6834399104118347},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6313088536262512},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.6096957325935364},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.5273253321647644},{"id":"https://openalex.org/keywords/topology","display_name":"Topology (electrical circuits)","score":0.49090415239334106},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4851849675178528},{"id":"https://openalex.org/keywords/azimuth","display_name":"Azimuth","score":0.47877347469329834},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.47767242789268494},{"id":"https://openalex.org/keywords/expression","display_name":"Expression (computer science)","score":0.4740585684776306},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.4581031799316406},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.4396517276763916},{"id":"https://openalex.org/keywords/antenna-array","display_name":"Antenna array","score":0.4320750832557678},{"id":"https://openalex.org/keywords/multi-user-mimo","display_name":"Multi-user MIMO","score":0.41638386249542236},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3798828721046448},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3643500804901123},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.24342620372772217},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.1660873293876648},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.1417054831981659},{"id":"https://openalex.org/keywords/electrical-engineering","display_name":"Electrical engineering","score":0.13653290271759033},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1070256233215332}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.8527855277061462},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7704380750656128},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.6834399104118347},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6313088536262512},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.6096957325935364},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.5273253321647644},{"id":"https://openalex.org/C184720557","wikidata":"https://www.wikidata.org/wiki/Q7825049","display_name":"Topology (electrical circuits)","level":2,"score":0.49090415239334106},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4851849675178528},{"id":"https://openalex.org/C159737794","wikidata":"https://www.wikidata.org/wiki/Q124274","display_name":"Azimuth","level":2,"score":0.47877347469329834},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.47767242789268494},{"id":"https://openalex.org/C90559484","wikidata":"https://www.wikidata.org/wiki/Q778379","display_name":"Expression (computer science)","level":2,"score":0.4740585684776306},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.4581031799316406},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.4396517276763916},{"id":"https://openalex.org/C62191587","wikidata":"https://www.wikidata.org/wiki/Q4771249","display_name":"Antenna array","level":3,"score":0.4320750832557678},{"id":"https://openalex.org/C91330434","wikidata":"https://www.wikidata.org/wiki/Q738298","display_name":"Multi-user MIMO","level":4,"score":0.41638386249542236},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3798828721046448},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3643500804901123},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.24342620372772217},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.1660873293876648},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.1417054831981659},{"id":"https://openalex.org/C119599485","wikidata":"https://www.wikidata.org/wiki/Q43035","display_name":"Electrical engineering","level":1,"score":0.13653290271759033},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1070256233215332},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/access.2018.2845666","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2018.2845666","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:8b0f7e9adec940e5938e8c71014d26c3","is_oa":true,"landing_page_url":"https://doaj.org/article/8b0f7e9adec940e5938e8c71014d26c3","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 6, Pp 31213-31223 (2018)","raw_type":"article"}],"best_oa_location":{"id":"doi:10.1109/access.2018.2845666","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2018.2845666","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Access","raw_type":"journal-article"},"sustainable_development_goals":[{"score":0.6899999976158142,"id":"https://metadata.un.org/sdg/7","display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G5747184226","display_name":null,"funder_award_id":"61671378","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6127976148","display_name":null,"funder_award_id":"61671144","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W1999833500","https://openalex.org/W2015161865","https://openalex.org/W2027711878","https://openalex.org/W2045840914","https://openalex.org/W2066533094","https://openalex.org/W2107388454","https://openalex.org/W2116193517","https://openalex.org/W2128513990","https://openalex.org/W2132712787","https://openalex.org/W2134070580","https://openalex.org/W2141602832","https://openalex.org/W2141682101","https://openalex.org/W2147601077","https://openalex.org/W2166064468","https://openalex.org/W2171397820","https://openalex.org/W2195833401","https://openalex.org/W2238937638","https://openalex.org/W2324936279","https://openalex.org/W2344765023","https://openalex.org/W2379877472","https://openalex.org/W2398987396","https://openalex.org/W2462498902","https://openalex.org/W2535707866","https://openalex.org/W2537033897","https://openalex.org/W2588670181","https://openalex.org/W2597206177","https://openalex.org/W2604132899","https://openalex.org/W2651491514","https://openalex.org/W2767099110","https://openalex.org/W2767505090","https://openalex.org/W2772781806","https://openalex.org/W2801698264","https://openalex.org/W2949977345","https://openalex.org/W3008609509","https://openalex.org/W3106282754","https://openalex.org/W6654144725","https://openalex.org/W6680021679","https://openalex.org/W6718982857"],"related_works":["https://openalex.org/W2167568384","https://openalex.org/W2116541631","https://openalex.org/W2514205366","https://openalex.org/W3173074004","https://openalex.org/W1976511355","https://openalex.org/W2064335375","https://openalex.org/W2083202929","https://openalex.org/W2544668827","https://openalex.org/W1985632843","https://openalex.org/W2082469387"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,117,157],"study":[4],"the":[5,22,27,34,53,73,94,97,121,144,151,159,173,180,187,196],"achievable":[6,174,181,216],"spectral":[7],"efficiency":[8],"(SE)":[9],"for":[10],"multi-user":[11],"massive":[12,231],"multiple-input":[13],"multiple-output":[14],"(MIMO)":[15],"systems":[16],"in":[17,68,129,195],"a":[18,46,65,69,78,124,226],"single":[19],"cell,":[20,145],"where":[21],"base":[23],"station":[24],"(BS)":[25],"has":[26,225],"perfect":[28],"channel":[29,40,50,104],"state":[30],"information":[31],"and":[32,58,164,168,214],"utilizes":[33],"maximum":[35],"ratio":[36],"transmission":[37],"precoding.":[38],"The":[39],"model":[41],"is":[42,75,88,107,154,201,218],"built":[43],"based":[44],"on":[45,119,150,172],"finite":[47],"dimensional":[48],"mmWave":[49,230],"by":[51,90],"taking":[52,91],"azimuth":[54],"angle":[55],"into":[56,92,135],"account":[57,93],"all":[59,131],"users":[60],"are":[61,133,208],"assumed":[62],"to":[63,139,210,220],"have":[64],"random":[66],"distribution":[67],"circular-shaped":[70],"cell.":[71],"When":[72],"BS":[74,122],"deployed":[76],"with":[77,186],"full":[79,162,221],"uniform":[80],"linear":[81],"array":[82],"(ULA)":[83],"configuration,":[84,128,223],"an":[85],"analytical":[86],"expression":[87,149],"derived":[89],"expectation":[95],"of":[96,143,161,183,189,229],"squared":[98],"inner":[99],"product":[100],"between":[101],"every":[102],"two":[103],"vectors":[105],"that":[106,179,204],"viewed":[108],"as":[109],"inter-user":[110,115,152],"interference.":[111],"To":[112],"effective":[113],"suppress":[114],"interference,":[116],"focus":[118],"studying":[120],"installing":[123],"multiple":[125],"sub-arrays":[126],"antenna":[127],"which":[130,224],"antennas":[132],"divided":[134],"three":[136,141,165,205],"sub-ULA":[137,166,206],"configurations":[138,167,207],"cover":[140],"regions":[142],"respectively.":[146],"A":[147],"closed-form":[148],"interference":[153,213],"derived.":[155],"Furthermore,":[156],"evaluate":[158],"performance":[160],"ULA":[163,222],"derive":[169],"approximated":[170],"expressions":[171],"SE.":[175],"Numerical":[176],"results":[177],"reveal":[178],"SE":[182,217],"system":[184],"increases":[185],"number":[188],"antennas,":[190],"while":[191],"it":[192,200],"approaches":[193],"saturation":[194],"high-SNR":[197],"regime.":[198],"Interestingly,":[199],"also":[202],"found":[203],"able":[209],"suppressive":[211],"user":[212],"their":[215],"superior":[219],"great":[227],"potential":[228],"MIMO":[232],"systems.":[233]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":2},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2}],"updated_date":"2026-04-04T08:04:53.788161","created_date":"2025-10-10T00:00:00"}
