{"id":"https://openalex.org/W2118606241","doi":"https://doi.org/10.1186/1687-1499-2012-36","title":"Low-complexity multiuser MIMO downlink system based on a small-sized CQI quantizer","display_name":"Low-complexity multiuser MIMO downlink system based on a small-sized CQI quantizer","publication_year":2012,"publication_date":"2012-02-08","ids":{"openalex":"https://openalex.org/W2118606241","doi":"https://doi.org/10.1186/1687-1499-2012-36","mag":"2118606241"},"language":"en","primary_location":{"id":"doi:10.1186/1687-1499-2012-36","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1687-1499-2012-36","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1186/1687-1499-2012-36","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1186/1687-1499-2012-36","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5009575286","display_name":"Jiho Song","orcid":"https://orcid.org/0000-0003-4507-0080"},"institutions":[{"id":"https://openalex.org/I148751991","display_name":"Sogang University","ror":"https://ror.org/056tn4839","country_code":"KR","type":"education","lineage":["https://openalex.org/I148751991"]},{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Jiho Song","raw_affiliation_strings":["Department of Electronic Engineering, Sogang University, Seoul, Korea","Department of Electrical Engineering and INMC, Seoul National University, Seoul , Korea"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Sogang University, Seoul, Korea","institution_ids":["https://openalex.org/I148751991"]},{"raw_affiliation_string":"Department of Electrical Engineering and INMC, Seoul National University, Seoul , Korea","institution_ids":["https://openalex.org/I139264467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100423375","display_name":"Jong-Ho Lee","orcid":"https://orcid.org/0000-0002-7439-1740"},"institutions":[{"id":"https://openalex.org/I12832649","display_name":"Gachon University","ror":"https://ror.org/03ryywt80","country_code":"KR","type":"education","lineage":["https://openalex.org/I12832649"]},{"id":"https://openalex.org/I148751991","display_name":"Sogang University","ror":"https://ror.org/056tn4839","country_code":"KR","type":"education","lineage":["https://openalex.org/I148751991"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jong-Ho Lee","raw_affiliation_strings":["Department of Electronic Engineering, Sogang University, Seoul, Korea","Department of Electronic Engineering Gachon University, Seongnam, Korea"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Sogang University, Seoul, Korea","institution_ids":["https://openalex.org/I148751991"]},{"raw_affiliation_string":"Department of Electronic Engineering Gachon University, Seongnam, Korea","institution_ids":["https://openalex.org/I12832649"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100745874","display_name":"Seong-Cheol Kim","orcid":"https://orcid.org/0000-0002-7896-5625"},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]},{"id":"https://openalex.org/I148751991","display_name":"Sogang University","ror":"https://ror.org/056tn4839","country_code":"KR","type":"education","lineage":["https://openalex.org/I148751991"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Seong-Cheol Kim","raw_affiliation_strings":["Department of Electronic Engineering, Sogang University, Seoul, Korea","Department of Electrical Engineering and INMC, Seoul National University, Seoul , Korea"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Sogang University, Seoul, Korea","institution_ids":["https://openalex.org/I148751991"]},{"raw_affiliation_string":"Department of Electrical Engineering and INMC, Seoul National University, Seoul , Korea","institution_ids":["https://openalex.org/I139264467"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5062494610","display_name":"Younglok Kim","orcid":"https://orcid.org/0000-0003-3586-1065"},"institutions":[{"id":"https://openalex.org/I148751991","display_name":"Sogang University","ror":"https://ror.org/056tn4839","country_code":"KR","type":"education","lineage":["https://openalex.org/I148751991"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Younglok Kim","raw_affiliation_strings":["Department of Electronic Engineering, Sogang University, Seoul, Korea","Dept. of Electronic Engineering, Sogang University, Seoul, Korea"],"affiliations":[{"raw_affiliation_string":"Department of Electronic Engineering, Sogang University, Seoul, Korea","institution_ids":["https://openalex.org/I148751991"]},{"raw_affiliation_string":"Dept. of Electronic Engineering, Sogang University, Seoul, Korea","institution_ids":["https://openalex.org/I148751991"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5009575286"],"corresponding_institution_ids":["https://openalex.org/I139264467","https://openalex.org/I148751991"],"apc_list":{"value":1140,"currency":"GBP","value_usd":1398},"apc_paid":{"value":1140,"currency":"GBP","value_usd":1398},"fwci":0.9986,"has_fulltext":true,"cited_by_count":7,"citation_normalized_percentile":{"value":0.79707549,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":97},"biblio":{"volume":"2012","issue":"1","first_page":null,"last_page":null},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9998999834060669,"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":0.9998999834060669,"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":0.9980000257492065,"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/T10575","display_name":"Wireless Communication Networks Research","score":0.9954000115394592,"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":0.829261064529419},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.5964944362640381},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5876024961471558},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.5856131315231323},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.5800482034683228},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.5589089393615723},{"id":"https://openalex.org/keywords/greedy-algorithm","display_name":"Greedy algorithm","score":0.47399652004241943},{"id":"https://openalex.org/keywords/multiuser-detection","display_name":"Multiuser detection","score":0.43803173303604126},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4150511920452118},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.41182243824005127},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3544686436653137},{"id":"https://openalex.org/keywords/control-theory","display_name":"Control theory (sociology)","score":0.34140366315841675},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.28503233194351196},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.13326695561408997},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.12821146845817566},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.10343277454376221}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.829261064529419},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.5964944362640381},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5876024961471558},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.5856131315231323},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.5800482034683228},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.5589089393615723},{"id":"https://openalex.org/C51823790","wikidata":"https://www.wikidata.org/wiki/Q504353","display_name":"Greedy algorithm","level":2,"score":0.47399652004241943},{"id":"https://openalex.org/C2777104032","wikidata":"https://www.wikidata.org/wiki/Q16324514","display_name":"Multiuser detection","level":3,"score":0.43803173303604126},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4150511920452118},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.41182243824005127},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3544686436653137},{"id":"https://openalex.org/C47446073","wikidata":"https://www.wikidata.org/wiki/Q5165890","display_name":"Control theory (sociology)","level":3,"score":0.34140366315841675},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.28503233194351196},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.13326695561408997},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.12821146845817566},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.10343277454376221},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.0},{"id":"https://openalex.org/C2775924081","wikidata":"https://www.wikidata.org/wiki/Q55608371","display_name":"Control (management)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1186/1687-1499-2012-36","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1687-1499-2012-36","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1186/1687-1499-2012-36","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1186/1687-1499-2012-36","is_oa":true,"landing_page_url":"https://doi.org/10.1186/1687-1499-2012-36","pdf_url":"https://jwcn-eurasipjournals.springeropen.com/counter/pdf/10.1186/1687-1499-2012-36","source":{"id":"https://openalex.org/S82675988","display_name":"EURASIP Journal on Wireless Communications and Networking","issn_l":"1687-1472","issn":["1687-1472","1687-1499"],"is_oa":true,"is_in_doaj":true,"is_core":true,"host_organization":"https://openalex.org/P4310319965","host_organization_name":"Springer Nature","host_organization_lineage":["https://openalex.org/P4310319965"],"host_organization_lineage_names":["Springer Nature"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"EURASIP Journal on Wireless Communications and Networking","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3034753964","display_name":null,"funder_award_id":"grant","funder_id":"https://openalex.org/F4320320671","funder_display_name":"National Research Foundation"},{"id":"https://openalex.org/G342704958","display_name":null,"funder_award_id":"funded","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"},{"id":"https://openalex.org/G3942910960","display_name":null,"funder_award_id":"(NRF) grant","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"}],"funders":[{"id":"https://openalex.org/F4320320671","display_name":"National Research Foundation","ror":"https://ror.org/05s0g1g46"},{"id":"https://openalex.org/F4320322031","display_name":"Korea Communications Commission","ror":"https://ror.org/04380ve97"},{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"}],"has_content":{"grobid_xml":true,"pdf":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2118606241.pdf","grobid_xml":"https://content.openalex.org/works/W2118606241.grobid-xml"},"referenced_works_count":23,"referenced_works":["https://openalex.org/W1976109068","https://openalex.org/W2021573106","https://openalex.org/W2074863717","https://openalex.org/W2083962008","https://openalex.org/W2101493165","https://openalex.org/W2109214279","https://openalex.org/W2112277368","https://openalex.org/W2120898255","https://openalex.org/W2124858630","https://openalex.org/W2131262740","https://openalex.org/W2150593711","https://openalex.org/W2154466855","https://openalex.org/W2155847893","https://openalex.org/W2161872841","https://openalex.org/W2164664877","https://openalex.org/W2165943096","https://openalex.org/W2172174005","https://openalex.org/W2798333393","https://openalex.org/W3098592574","https://openalex.org/W3128611524","https://openalex.org/W4210371779","https://openalex.org/W4239651601","https://openalex.org/W4255001068"],"related_works":["https://openalex.org/W3183948672","https://openalex.org/W3110381201","https://openalex.org/W2935909890","https://openalex.org/W1531601525","https://openalex.org/W4365807906","https://openalex.org/W2157864637","https://openalex.org/W4223416141","https://openalex.org/W2546639359","https://openalex.org/W1922070205","https://openalex.org/W4295990986"],"abstract_inverted_index":{"Abstract":[0],"It":[1],"is":[2,63],"known":[3],"that":[4,94],"the":[5,35,38,42,95,98],"conventional":[6,106],"semi-orthogonal":[7,24],"user":[8,31],"selection":[9],"based":[10,80],"on":[11,81],"a":[12,17,28,47,53,82],"greedy":[13],"algorithm":[14],"cannot":[15],"provide":[16],"globally":[18],"optimal":[19,30],"solution":[20],"due":[21],"to":[22],"its":[23],"property.":[25],"To":[26,65],"find":[27],"more":[29],"set":[32],"and":[33],"prevent":[34],"waste":[36],"of":[37,85,111],"feedback":[39,67],"resource":[40],"at":[41],"base":[43],"station,":[44],"we":[45,74],"present":[46],"multiuser":[48],"multiple-input":[49],"multiple-output":[50],"system":[51],"using":[52],"random":[54],"beamforming":[55],"(RBF)":[56],"scheme,":[57],"in":[58],"which":[59],"one":[60],"unitary":[61],"matrix":[62],"used.":[64],"reduce":[66],"overhead":[68],"for":[69,88],"channel":[70],"quality":[71],"information":[72],"(CQI),":[73],"propose":[75],"an":[76],"efficient":[77],"CQI":[78,100],"quantizer":[79,101],"closed-form":[83],"expression":[84],"expected":[86],"SINR":[87],"selected":[89],"users.":[90],"Numerical":[91],"results":[92],"show":[93],"RBF":[96],"with":[97],"proposed":[99],"provides":[102],"better":[103],"throughput":[104],"than":[105],"systems":[107],"under":[108],"minor":[109],"levels":[110],"feedback.":[112]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":3}],"updated_date":"2026-04-10T15:06:20.359241","created_date":"2025-10-10T00:00:00"}
