{"id":"https://openalex.org/W2017871796","doi":"https://doi.org/10.1109/twc.2014.2317472","title":"Feedback Optimization Schemes for Downlink MISO-OFDMA Systems With Heterogeneous Users","display_name":"Feedback Optimization Schemes for Downlink MISO-OFDMA Systems With Heterogeneous Users","publication_year":2014,"publication_date":"2014-04-15","ids":{"openalex":"https://openalex.org/W2017871796","doi":"https://doi.org/10.1109/twc.2014.2317472","mag":"2017871796"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2014.2317472","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2014.2317472","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Wireless Communications","raw_type":"journal-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/A5032278839","display_name":"Hyun-Myung Kim","orcid":null},"institutions":[{"id":"https://openalex.org/I123900574","display_name":"Pohang University of Science and Technology","ror":"https://ror.org/04xysgw12","country_code":"KR","type":"education","lineage":["https://openalex.org/I123900574"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Hyun-Myung Kim","raw_affiliation_strings":["Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea","Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea","institution_ids":["https://openalex.org/I123900574"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea","institution_ids":["https://openalex.org/I123900574"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5083169327","display_name":"Moonsik Min","orcid":"https://orcid.org/0000-0002-1206-3805"},"institutions":[{"id":"https://openalex.org/I123900574","display_name":"Pohang University of Science and Technology","ror":"https://ror.org/04xysgw12","country_code":"KR","type":"education","lineage":["https://openalex.org/I123900574"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Moonsik Min","raw_affiliation_strings":["Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea","Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea","institution_ids":["https://openalex.org/I123900574"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea","institution_ids":["https://openalex.org/I123900574"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5048791045","display_name":"Gi-Hong Im","orcid":null},"institutions":[{"id":"https://openalex.org/I123900574","display_name":"Pohang University of Science and Technology","ror":"https://ror.org/04xysgw12","country_code":"KR","type":"education","lineage":["https://openalex.org/I123900574"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Gi-Hong Im","raw_affiliation_strings":["Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea","Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Korea","institution_ids":["https://openalex.org/I123900574"]},{"raw_affiliation_string":"Dept. of Electr. Eng., Pohang Univ. of Sci. & Technol. (POSTECH), Pohang, South Korea","institution_ids":["https://openalex.org/I123900574"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I123900574"],"apc_list":null,"apc_paid":null,"fwci":1.2431,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.82007839,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"13","issue":"8","first_page":"4401","last_page":"4414"},"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/T11409","display_name":"Advanced Wireless Network 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":0.9998999834060669,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8136568069458008},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiple-access","display_name":"Orthogonal frequency-division multiple access","score":0.7068712115287781},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.6719121932983398},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6373943090438843},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.5709465742111206},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5283145308494568},{"id":"https://openalex.org/keywords/frequency-division-multiple-access","display_name":"Frequency-division multiple access","score":0.5118869543075562},{"id":"https://openalex.org/keywords/quantization","display_name":"Quantization (signal processing)","score":0.43075665831565857},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.4084511995315552},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3813788592815399},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.34980618953704834},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.3277313709259033},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.19029250741004944},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1702183485031128}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8136568069458008},{"id":"https://openalex.org/C2775907427","wikidata":"https://www.wikidata.org/wiki/Q2697649","display_name":"Orthogonal frequency-division multiple access","level":4,"score":0.7068712115287781},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.6719121932983398},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6373943090438843},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.5709465742111206},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5283145308494568},{"id":"https://openalex.org/C2776208322","wikidata":"https://www.wikidata.org/wiki/Q844071","display_name":"Frequency-division multiple access","level":4,"score":0.5118869543075562},{"id":"https://openalex.org/C28855332","wikidata":"https://www.wikidata.org/wiki/Q198099","display_name":"Quantization (signal processing)","level":2,"score":0.43075665831565857},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.4084511995315552},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3813788592815399},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.34980618953704834},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.3277313709259033},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.19029250741004944},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1702183485031128}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/twc.2014.2317472","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2014.2317472","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"is_oa":false,"is_in_doaj":false,"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 Transactions on Wireless Communications","raw_type":"journal-article"},{"id":"pmh:oai:oasis.postech.ac.kr:2014.oak/14228","is_oa":false,"landing_page_url":"https://oasis.postech.ac.kr/handle/2014.oak/14228","pdf_url":null,"source":{"id":"https://openalex.org/S4306401965","display_name":"Open Access System for Information Sharing (Pohang University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I123900574","host_organization_name":"Pohang University of Science and Technology","host_organization_lineage":["https://openalex.org/I123900574"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":34,"referenced_works":["https://openalex.org/W1979156977","https://openalex.org/W2063908491","https://openalex.org/W2074120933","https://openalex.org/W2077953277","https://openalex.org/W2086676178","https://openalex.org/W2087411911","https://openalex.org/W2090207893","https://openalex.org/W2095305131","https://openalex.org/W2098249016","https://openalex.org/W2101520326","https://openalex.org/W2104607204","https://openalex.org/W2108202224","https://openalex.org/W2110984460","https://openalex.org/W2116141601","https://openalex.org/W2122884477","https://openalex.org/W2124087336","https://openalex.org/W2124676228","https://openalex.org/W2124858630","https://openalex.org/W2129766733","https://openalex.org/W2133255926","https://openalex.org/W2142038266","https://openalex.org/W2143927285","https://openalex.org/W2144926412","https://openalex.org/W2151795416","https://openalex.org/W2154466855","https://openalex.org/W2155239385","https://openalex.org/W2158863329","https://openalex.org/W2160998222","https://openalex.org/W2169297632","https://openalex.org/W2316298462","https://openalex.org/W3098592574","https://openalex.org/W3105505475","https://openalex.org/W3112681748","https://openalex.org/W3150998337"],"related_works":["https://openalex.org/W4365807906","https://openalex.org/W2157864637","https://openalex.org/W4223416141","https://openalex.org/W2546639359","https://openalex.org/W2105999282","https://openalex.org/W1922070205","https://openalex.org/W4313028534","https://openalex.org/W2025189274","https://openalex.org/W1585503616","https://openalex.org/W2092365485"],"abstract_inverted_index":{"This":[0],"paper":[1],"proposes":[2],"feedback":[3,28,76,126,131,151,157],"optimization":[4,48],"schemes":[5,168],"for":[6,92],"multiple-input":[7],"single-output":[8],"orthogonal":[9],"frequency-division":[10],"multiple":[11],"access":[12],"(MISO-OFDMA)":[13],"systems":[14,57],"with":[15],"heterogeneous":[16],"users.":[17],"The":[18],"proposed":[19],"scheme":[20],"adjusts":[21],"the":[22,27,32,37,53,59,64,70,80,88,98,102,108,115,118,122,134,138,140,146,150,156,161,189],"unit":[23],"and":[24,42,75,94,149,166],"resolution":[25],"of":[26,55,69,101,117,137,163,191],"to":[29,87,155],"efficiently":[30],"exploit":[31],"long-term":[33,178],"channel":[34,73,99,135,179],"statistics,":[35],"including":[36],"path":[38],"loss,":[39],"delay":[40],"spread,":[41],"mobility.":[43],"To":[44],"develop":[45],"an":[46],"analytical":[47],"framework,":[49],"we":[50,83],"first":[51],"derive":[52],"sum-rate":[54,89,116],"MISO-OFDMA":[56,192],"when":[58],"channel-state":[60],"information":[61],"(CSI)":[62],"at":[63,107],"transmitter":[65],"is":[66],"imperfect":[67],"because":[68],"quantization":[71],"error,":[72],"variation,":[74],"delay.":[77],"Based":[78],"on":[79,124],"derived":[81],"results,":[82],"present":[84],"effective":[85],"solutions":[86],"maximization":[90],"problem":[91],"distributed":[93,165],"centralized":[95,167],"scenarios.":[96],"When":[97],"statistics":[100,136],"users":[103],"are":[104],"not":[105],"available":[106],"base":[109,141],"station,":[110],"each":[111,174],"user":[112,147,175],"can":[113,143],"improve":[114,188],"system":[119],"by":[120],"minimizing":[121],"distortion":[123],"CSI":[125],"under":[127],"a":[128],"fixed":[129],"per-user":[130],"rate.":[132],"With":[133],"users,":[139],"station":[142],"further":[144],"control":[145],"set":[148],"rate":[152],"in":[153],"addition":[154],"granularity.":[158],"We":[159],"evaluate":[160],"performance":[162,190],"both":[164,185],"over":[169],"practical":[170],"wireless":[171],"environments,":[172],"where":[173],"has":[176],"different":[177],"statistics.":[180],"Simulation":[181],"results":[182],"show":[183],"that":[184],"methods":[186],"significantly":[187],"systems.":[193]},"counts_by_year":[{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2016,"cited_by_count":3},{"year":2015,"cited_by_count":3}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}