{"id":"https://openalex.org/W2162104714","doi":"https://doi.org/10.1109/vetecs.2011.5956693","title":"Performance Evaluations for Multiuser CQI Enhancements for LTE-Advanced","display_name":"Performance Evaluations for Multiuser CQI Enhancements for LTE-Advanced","publication_year":2011,"publication_date":"2011-05-01","ids":{"openalex":"https://openalex.org/W2162104714","doi":"https://doi.org/10.1109/vetecs.2011.5956693","mag":"2162104714"},"language":"en","primary_location":{"id":"doi:10.1109/vetecs.2011.5956693","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecs.2011.5956693","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE 73rd 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/A5010372409","display_name":"Helka\u2010Liina M\u00e4\u00e4tt\u00e4nen","orcid":null},"institutions":[{"id":"https://openalex.org/I9927081","display_name":"Aalto University","ror":"https://ror.org/020hwjq30","country_code":"FI","type":"education","lineage":["https://openalex.org/I9927081"]}],"countries":["FI"],"is_corresponding":true,"raw_author_name":"Helka-Liina Maattanen","raw_affiliation_strings":["Aalto University of Science and Technology, Helsinki, Finland"],"affiliations":[{"raw_affiliation_string":"Aalto University of Science and Technology, Helsinki, Finland","institution_ids":["https://openalex.org/I9927081"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079862125","display_name":"Toni Huovinen","orcid":null},"institutions":[{"id":"https://openalex.org/I4210133110","display_name":"Tampere University","ror":null,"country_code":"FI","type":null,"lineage":["https://openalex.org/I4210133110"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Toni Huovinen","raw_affiliation_strings":["Tampere University of Technology, Tampere, Finland"],"affiliations":[{"raw_affiliation_string":"Tampere University of Technology, Tampere, Finland","institution_ids":["https://openalex.org/I4210133110"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038842923","display_name":"Tommi Koivisto","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Tommi Koivisto","raw_affiliation_strings":["Renesas Mobile Europe Limited, Helsinki, Finland"],"affiliations":[{"raw_affiliation_string":"Renesas Mobile Europe Limited, Helsinki, Finland","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5112292952","display_name":"Mihai Enescu","orcid":null},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Mihai Enescu","raw_affiliation_strings":["Renesas Mobile Europe Limited, Helsinki, Finland"],"affiliations":[{"raw_affiliation_string":"Renesas Mobile Europe Limited, Helsinki, Finland","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5006597250","display_name":"Olav Tirkkonen","orcid":"https://orcid.org/0000-0002-2611-1636"},"institutions":[{"id":"https://openalex.org/I9927081","display_name":"Aalto University","ror":"https://ror.org/020hwjq30","country_code":"FI","type":"education","lineage":["https://openalex.org/I9927081"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Olav Tirkkonen","raw_affiliation_strings":["Aalto University of Science and Technology, Helsinki, Finland"],"affiliations":[{"raw_affiliation_string":"Aalto University of Science and Technology, Helsinki, Finland","institution_ids":["https://openalex.org/I9927081"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5054197935","display_name":"Mikko Valkama","orcid":"https://orcid.org/0000-0003-0361-0800"},"institutions":[{"id":"https://openalex.org/I4210133110","display_name":"Tampere University","ror":null,"country_code":"FI","type":null,"lineage":["https://openalex.org/I4210133110"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Mikko Valkama","raw_affiliation_strings":["Tampere University of Technology, Tampere, Finland"],"affiliations":[{"raw_affiliation_string":"Tampere University of Technology, Tampere, Finland","institution_ids":["https://openalex.org/I4210133110"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5010372409"],"corresponding_institution_ids":["https://openalex.org/I9927081"],"apc_list":null,"apc_paid":null,"fwci":1.3468,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.83733462,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"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/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9991000294685364,"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":0.9983000159263611,"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/precoding","display_name":"Precoding","score":0.9168698787689209},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7108947038650513},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7018471956253052},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.5954700112342834},{"id":"https://openalex.org/keywords/multiuser-detection","display_name":"Multiuser detection","score":0.5872246026992798},{"id":"https://openalex.org/keywords/spectral-efficiency","display_name":"Spectral efficiency","score":0.5763559341430664},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5700770616531372},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5540847778320312},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.4161989092826843},{"id":"https://openalex.org/keywords/user-equipment","display_name":"User equipment","score":0.4132641553878784},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.3910484313964844},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3628185987472534},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.22210988402366638},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.20109355449676514},{"id":"https://openalex.org/keywords/code-division-multiple-access","display_name":"Code division multiple access","score":0.09494510293006897}],"concepts":[{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.9168698787689209},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7108947038650513},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7018471956253052},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.5954700112342834},{"id":"https://openalex.org/C2777104032","wikidata":"https://www.wikidata.org/wiki/Q16324514","display_name":"Multiuser detection","level":3,"score":0.5872246026992798},{"id":"https://openalex.org/C137246740","wikidata":"https://www.wikidata.org/wiki/Q583970","display_name":"Spectral efficiency","level":3,"score":0.5763559341430664},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5700770616531372},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5540847778320312},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.4161989092826843},{"id":"https://openalex.org/C2781327853","wikidata":"https://www.wikidata.org/wiki/Q3552547","display_name":"User equipment","level":3,"score":0.4132641553878784},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.3910484313964844},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3628185987472534},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.22210988402366638},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.20109355449676514},{"id":"https://openalex.org/C47696715","wikidata":"https://www.wikidata.org/wiki/Q233394","display_name":"Code division multiple access","level":2,"score":0.09494510293006897}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vetecs.2011.5956693","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecs.2011.5956693","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE 73rd Vehicular Technology Conference (VTC Spring)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":9,"referenced_works":["https://openalex.org/W2031460545","https://openalex.org/W2074863717","https://openalex.org/W2086373104","https://openalex.org/W2108679494","https://openalex.org/W2130256523","https://openalex.org/W2130521103","https://openalex.org/W2131262740","https://openalex.org/W2622884540","https://openalex.org/W6672428670"],"related_works":["https://openalex.org/W3141240674","https://openalex.org/W3006920049","https://openalex.org/W2601693592","https://openalex.org/W2957675536","https://openalex.org/W2018468199","https://openalex.org/W4376480765","https://openalex.org/W4385624334","https://openalex.org/W1999647304","https://openalex.org/W2921636439","https://openalex.org/W3102703331"],"abstract_inverted_index":{"In":[0,67],"LTE-Advanced,":[1],"multiuser":[2,41,65,89,128],"MIMO":[3],"has":[4],"been":[5],"identified":[6],"as":[7],"a":[8,107,112,139],"key":[9],"technique":[10],"for":[11,143],"increasing":[12],"system":[13,76],"spectral":[14],"efficiency":[15],"in":[16,96],"closed-loop":[17],"MIMO.":[18],"Transmission":[19],"parameters":[20],"like":[21],"precoding":[22,109],"and":[23,40,64,111],"transmission":[24,42],"rate":[25,31],"are":[26],"adapted":[27],"based":[28],"on":[29,82],"finite":[30],"feedback":[32,54,104,121,147],"from":[33,138],"the":[34,53,84,97,127,136,144,150],"users.":[35],"Switching":[36],"between":[37],"single":[38,62,100,102],"user":[39,63,103,140],"modes":[43],"is":[44,73,81,99,118,153],"possible":[45],"without":[46],"higher":[47],"layer":[48],"signaling,":[49],"which":[50],"means":[51],"that":[52,123],"should":[55],"be":[56],"designed":[57],"to":[58,120],"sustain":[59],"efficiently":[60],"both":[61],"transmissions.":[66],"this":[68],"paper,":[69],"performance":[70,129],"of":[71,86,106],"LTE-Advanced":[72],"evaluated":[74],"with":[75],"level":[77],"simulations.":[78],"The":[79,94],"focus":[80],"studying":[83],"viability":[85],"an":[87,131],"additional":[88,132],"specific":[90,141],"channel":[91,113,145],"quality":[92,114,146],"feedback.":[93,115],"baseline":[95,117],"comparison":[98],"stream":[101],"consisting":[105],"preferred":[108],"vector":[110],"This":[116],"compared":[119],"schemes":[122],"aim":[124],"at":[125],"improving":[126],"by":[130,149],"multiuser-specific":[133],"CQI.":[134],"Also,":[135],"gain":[137],"scaling":[142],"performed":[148],"base":[151],"station":[152],"evaluated.":[154]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2016,"cited_by_count":1},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":2},{"year":2012,"cited_by_count":3}],"updated_date":"2026-03-10T16:38:18.471706","created_date":"2025-10-10T00:00:00"}