{"id":"https://openalex.org/W4207005926","doi":"https://doi.org/10.1109/gcwkshps52748.2021.9682173","title":"Precoding Design for Minimizing Age of Information in Downlink MU-MISO Systems","display_name":"Precoding Design for Minimizing Age of Information in Downlink MU-MISO Systems","publication_year":2021,"publication_date":"2021-12-01","ids":{"openalex":"https://openalex.org/W4207005926","doi":"https://doi.org/10.1109/gcwkshps52748.2021.9682173"},"language":"en","primary_location":{"id":"doi:10.1109/gcwkshps52748.2021.9682173","is_oa":false,"landing_page_url":"https://doi.org/10.1109/gcwkshps52748.2021.9682173","pdf_url":null,"source":{"id":"https://openalex.org/S4363605397","display_name":"2021 IEEE Globecom Workshops (GC Wkshps)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE Globecom Workshops (GC Wkshps)","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/A5100343644","display_name":"Minsu Kim","orcid":"https://orcid.org/0000-0003-4939-2829"},"institutions":[{"id":"https://openalex.org/I193352282","display_name":"Daegu Gyeongbuk Institute of Science and Technology","ror":"https://ror.org/03frjya69","country_code":"KR","type":"education","lineage":["https://openalex.org/I193352282"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Minsu Kim","raw_affiliation_strings":["Daegu Gyeongbuk Institute of Science and Technology (DGIST), South Korea"],"affiliations":[{"raw_affiliation_string":"Daegu Gyeongbuk Institute of Science and Technology (DGIST), South Korea","institution_ids":["https://openalex.org/I193352282"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5023489409","display_name":"Jemin Lee","orcid":null},"institutions":[{"id":"https://openalex.org/I848706","display_name":"Sungkyunkwan University","ror":"https://ror.org/04q78tk20","country_code":"KR","type":"education","lineage":["https://openalex.org/I848706"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jemin Lee","raw_affiliation_strings":["Sungkyunkwan University, South Korea"],"affiliations":[{"raw_affiliation_string":"Sungkyunkwan University, South Korea","institution_ids":["https://openalex.org/I848706"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5100343644"],"corresponding_institution_ids":["https://openalex.org/I193352282"],"apc_list":null,"apc_paid":null,"fwci":0.924,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.69270963,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13553","display_name":"Age of Information Optimization","score":1.0,"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"}},"topics":[{"id":"https://openalex.org/T13553","display_name":"Age of Information Optimization","score":1.0,"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/T12079","display_name":"IoT Networks and Protocols","score":0.9793000221252441,"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":0.9714999794960022,"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/precoding","display_name":"Precoding","score":0.9037028551101685},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.8436743021011353},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6886105537414551},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.6523326635360718},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6005256175994873},{"id":"https://openalex.org/keywords/ergodic-theory","display_name":"Ergodic theory","score":0.5965279340744019},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.49030759930610657},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.46391358971595764},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.4139120280742645},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.368558406829834},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.3361605703830719},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.30882683396339417},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.1633642017841339},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.07210299372673035}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.9037028551101685},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.8436743021011353},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6886105537414551},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.6523326635360718},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6005256175994873},{"id":"https://openalex.org/C122044880","wikidata":"https://www.wikidata.org/wiki/Q5498822","display_name":"Ergodic theory","level":2,"score":0.5965279340744019},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.49030759930610657},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.46391358971595764},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.4139120280742645},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.368558406829834},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.3361605703830719},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.30882683396339417},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.1633642017841339},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.07210299372673035},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.0},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/gcwkshps52748.2021.9682173","is_oa":false,"landing_page_url":"https://doi.org/10.1109/gcwkshps52748.2021.9682173","pdf_url":null,"source":{"id":"https://openalex.org/S4363605397","display_name":"2021 IEEE Globecom Workshops (GC Wkshps)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"conference"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE Globecom Workshops (GC Wkshps)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","id":"https://metadata.un.org/sdg/16","score":0.7799999713897705}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":17,"referenced_works":["https://openalex.org/W1694183347","https://openalex.org/W1974552031","https://openalex.org/W1974598214","https://openalex.org/W1993918491","https://openalex.org/W2002011878","https://openalex.org/W2149319583","https://openalex.org/W2169153222","https://openalex.org/W2963017050","https://openalex.org/W2974939732","https://openalex.org/W3042883390","https://openalex.org/W3099468583","https://openalex.org/W3102260691","https://openalex.org/W3137190056","https://openalex.org/W3170198410","https://openalex.org/W6785233936","https://openalex.org/W6792407782","https://openalex.org/W6796731228"],"related_works":["https://openalex.org/W2587236994","https://openalex.org/W2092533696","https://openalex.org/W2127609755","https://openalex.org/W1994933633","https://openalex.org/W2070276510","https://openalex.org/W2047244900","https://openalex.org/W2106257937","https://openalex.org/W2129771008","https://openalex.org/W2792034793","https://openalex.org/W2156331136"],"abstract_inverted_index":{"The":[0],"multiple-input":[1,31],"multiple-output":[2],"(MIMO)":[3],"techniques":[4],"have":[5],"been":[6],"contributed":[7],"to":[8,53,81,143],"reducing":[9],"communication":[10,38],"duration":[11,39],"by":[12],"exploiting":[13],"the":[14,21,28,37,48,77,87,95,111,127,155,162],"spatial":[15],"degrees":[16],"of":[17,24,40,90,98,121,131],"freedom.":[18],"However,":[19],"with":[20,73],"growing":[22],"number":[23],"real":[25],"time":[26,102],"applications,":[27],"conventional":[29,159],"multi-user":[30],"single-output":[32],"(MU-MISO)":[33],"design,":[34],"which":[35],"minimizes":[36,126],"mobile":[41],"users":[42],"(MUs),":[43],"has":[44],"become":[45],"unsuitable":[46],"for":[47],"scenario":[49],"where":[50,67],"MUs":[51,78],"want":[52,80],"keep":[54],"fresh":[55,83],"data":[56,88],"persistently.":[57],"Therefore,":[58],"in":[59,106],"this":[60],"paper,":[61],"we":[62,93,152],"consider":[63],"a":[64,68,107,117,136],"MU-MISO":[65],"system":[66],"base":[69],"station":[70],"(BS)":[71],"equipped":[72],"multiple":[74,132],"antennas":[75],"serves":[76],"that":[79,125,154],"maintain":[82],"data.":[84],"To":[85],"analyze":[86],"freshness":[89],"sensed":[91],"information,":[92],"define":[94],"expected":[96],"age":[97],"information":[99],"(AoI)":[100],"violation":[101,129,165],"and":[103,134],"approximate":[104],"it":[105],"tractable":[108],"form":[109],"using":[110],"smooth":[112],"maximum/minimum":[113],"function.":[114],"We":[115],"derive":[116],"first-order":[118],"optimality":[119],"condition":[120],"an":[122,145],"optimization":[123],"problem":[124],"AoI":[128,164],"probability":[130],"MUs,":[133],"propose":[135],"generalized":[137],"power":[138],"iteration":[139],"(GPI)":[140],"precoding":[141,147],"algorithm":[142],"obtain":[144],"optimal":[146],"vector.":[148],"In":[149],"simulation":[150],"results,":[151],"prove":[153],"proposed":[156],"method":[157],"outperforms":[158],"methods":[160],"on":[161],"ergodic":[163],"probability.":[166]},"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2022,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}