{"id":"https://openalex.org/W2076281570","doi":"https://doi.org/10.1109/vetecf.2011.6092925","title":"Impact of Practical Codebook Limitations on HSUPA Closed Loop Transmit Diversity","display_name":"Impact of Practical Codebook Limitations on HSUPA Closed Loop Transmit Diversity","publication_year":2011,"publication_date":"2011-09-01","ids":{"openalex":"https://openalex.org/W2076281570","doi":"https://doi.org/10.1109/vetecf.2011.6092925","mag":"2076281570"},"language":"en","primary_location":{"id":"doi:10.1109/vetecf.2011.6092925","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecf.2011.6092925","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE Vehicular Technology Conference (VTC Fall)","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/A5011105096","display_name":"Petri Eskelinen","orcid":null},"institutions":[{"id":"https://openalex.org/I4210110178","display_name":"Magister Solutions (Finland)","ror":"https://ror.org/01mdh2992","country_code":"FI","type":"company","lineage":["https://openalex.org/I4210110178"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Petri Eskelinen","raw_affiliation_strings":["Magister Solutions Limited, Jyvaskyla, Finland","Magister Solutions Ltd., Jyvaskyla, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Magister Solutions Limited, Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]},{"raw_affiliation_string":"Magister Solutions Ltd., Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5086936295","display_name":"Frans Laakso","orcid":null},"institutions":[{"id":"https://openalex.org/I4210110178","display_name":"Magister Solutions (Finland)","ror":"https://ror.org/01mdh2992","country_code":"FI","type":"company","lineage":["https://openalex.org/I4210110178"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Frans Laakso","raw_affiliation_strings":["Magister Solutions Limited, Jyvaskyla, Finland","Magister Solutions Ltd., Jyvaskyla, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Magister Solutions Limited, Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]},{"raw_affiliation_string":"Magister Solutions Ltd., Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037983142","display_name":"Kari Aho","orcid":null},"institutions":[{"id":"https://openalex.org/I4210110178","display_name":"Magister Solutions (Finland)","ror":"https://ror.org/01mdh2992","country_code":"FI","type":"company","lineage":["https://openalex.org/I4210110178"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Kari Aho","raw_affiliation_strings":["Magister Solutions Limited, Jyvaskyla, Finland","Magister Solutions Ltd., Jyvaskyla, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Magister Solutions Limited, Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]},{"raw_affiliation_string":"Magister Solutions Ltd., Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5030718363","display_name":"Arto Lehti","orcid":null},"institutions":[{"id":"https://openalex.org/I4210110178","display_name":"Magister Solutions (Finland)","ror":"https://ror.org/01mdh2992","country_code":"FI","type":"company","lineage":["https://openalex.org/I4210110178"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Arto Lehti","raw_affiliation_strings":["Magister Solutions Limited, Jyvaskyla, Finland","Renesas Mobile Eur., Oulu, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Magister Solutions Limited, Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]},{"raw_affiliation_string":"Renesas Mobile Eur., Oulu, Finland","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5009005503","display_name":"Tuomas Hiltunen","orcid":null},"institutions":[{"id":"https://openalex.org/I4210110178","display_name":"Magister Solutions (Finland)","ror":"https://ror.org/01mdh2992","country_code":"FI","type":"company","lineage":["https://openalex.org/I4210110178"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Tuomas Hiltunen","raw_affiliation_strings":["Magister Solutions Limited, Jyvaskyla, Finland","Magister Solutions Ltd., Jyvaskyla, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Magister Solutions Limited, Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]},{"raw_affiliation_string":"Magister Solutions Ltd., Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5008682665","display_name":"Ilmari Repo","orcid":null},"institutions":[{"id":"https://openalex.org/I4210110178","display_name":"Magister Solutions (Finland)","ror":"https://ror.org/01mdh2992","country_code":"FI","type":"company","lineage":["https://openalex.org/I4210110178"]}],"countries":["FI"],"is_corresponding":false,"raw_author_name":"Ilmari Repo","raw_affiliation_strings":["Renesas Mobile Europe Limited, Oulu, Finland","Magister Solutions Ltd., Jyvaskyla, Finland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Renesas Mobile Europe Limited, Oulu, Finland","institution_ids":[]},{"raw_affiliation_string":"Magister Solutions Ltd., Jyvaskyla, Finland","institution_ids":["https://openalex.org/I4210110178"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":1.0812,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.80131363,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":96,"max":97},"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":0.9998000264167786,"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":0.9998000264167786,"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":0.9988999962806702,"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/T11409","display_name":"Advanced Wireless Network Optimization","score":0.998199999332428,"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/codebook","display_name":"Codebook","score":0.8495604991912842},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.8263860940933228},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.6711968183517456},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6471185684204102},{"id":"https://openalex.org/keywords/transmit-diversity","display_name":"Transmit diversity","score":0.5793764591217041},{"id":"https://openalex.org/keywords/antenna","display_name":"Antenna (radio)","score":0.5752492547035217},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.5669710636138916},{"id":"https://openalex.org/keywords/fading","display_name":"Fading","score":0.5321186184883118},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.5216072797775269},{"id":"https://openalex.org/keywords/diversity-gain","display_name":"Diversity gain","score":0.5204818248748779},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.5038956999778748},{"id":"https://openalex.org/keywords/antenna-diversity","display_name":"Antenna diversity","score":0.48066675662994385},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.43661195039749146},{"id":"https://openalex.org/keywords/link-level","display_name":"Link level","score":0.4101085066795349},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.3556990623474121},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.32691848278045654},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.30888667702674866},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.2308623492717743},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.1749226450920105}],"concepts":[{"id":"https://openalex.org/C127759330","wikidata":"https://www.wikidata.org/wiki/Q637416","display_name":"Codebook","level":2,"score":0.8495604991912842},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.8263860940933228},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.6711968183517456},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6471185684204102},{"id":"https://openalex.org/C117218131","wikidata":"https://www.wikidata.org/wiki/Q7834664","display_name":"Transmit diversity","level":4,"score":0.5793764591217041},{"id":"https://openalex.org/C21822782","wikidata":"https://www.wikidata.org/wiki/Q131214","display_name":"Antenna (radio)","level":2,"score":0.5752492547035217},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.5669710636138916},{"id":"https://openalex.org/C81978471","wikidata":"https://www.wikidata.org/wiki/Q1196572","display_name":"Fading","level":3,"score":0.5321186184883118},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.5216072797775269},{"id":"https://openalex.org/C164785522","wikidata":"https://www.wikidata.org/wiki/Q5283966","display_name":"Diversity gain","level":4,"score":0.5204818248748779},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.5038956999778748},{"id":"https://openalex.org/C60069766","wikidata":"https://www.wikidata.org/wiki/Q357054","display_name":"Antenna diversity","level":3,"score":0.48066675662994385},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.43661195039749146},{"id":"https://openalex.org/C2779609627","wikidata":"https://www.wikidata.org/wiki/Q6554308","display_name":"Link level","level":2,"score":0.4101085066795349},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.3556990623474121},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.32691848278045654},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.30888667702674866},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.2308623492717743},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.1749226450920105},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/vetecf.2011.6092925","is_oa":false,"landing_page_url":"https://doi.org/10.1109/vetecf.2011.6092925","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE Vehicular Technology Conference (VTC Fall)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":6,"referenced_works":["https://openalex.org/W130749283","https://openalex.org/W2061359147","https://openalex.org/W2126194122","https://openalex.org/W2144670156","https://openalex.org/W2148305824","https://openalex.org/W3147028311"],"related_works":["https://openalex.org/W2079455085","https://openalex.org/W2106419665","https://openalex.org/W2141348312","https://openalex.org/W2052300576","https://openalex.org/W4298164115","https://openalex.org/W2003125408","https://openalex.org/W4386450770","https://openalex.org/W2132817102","https://openalex.org/W2122180319","https://openalex.org/W2534279604"],"abstract_inverted_index":{"Different":[0],"alternatives":[1],"for":[2,6],"uplink":[3],"transmit":[4,35,49],"diversity":[5],"HSUPA":[7],"are":[8,37,75],"being":[9],"investigated":[10],"in":[11,51,165],"3GPP.":[12],"This":[13],"paper":[14],"compares":[15],"the":[16,27,40,48,55,61,96,100,118,129,134,145,155],"performance":[17,93,120,146],"of":[18,63,102,114,136],"two-antenna":[19],"beamforming":[20,104],"using":[21],"closed":[22],"loop":[23],"feedback":[24,159],"information":[25],"against":[26],"baseline":[28],"single":[29],"antenna":[30,73,105],"transmission.":[31],"With":[32],"beamforming,":[33],"multiple":[34],"antennas":[36,50],"utilized":[38],"and":[39,68,127],"UE":[41],"transmitter":[42],"applies":[43],"a":[44,78],"weight":[45,115],"vector":[46],"to":[47,53,72,133],"order":[52],"amplify":[54],"received":[56],"signal.":[57],"In":[58,112],"this":[59],"paper,":[60],"impact":[62],"different":[64,158],"codebook":[65,88],"sizes,":[66],"delays":[67,160,164],"update":[69,116],"intervals":[70],"related":[71],"weights":[74,106],"studied":[76],"utilizing":[77],"comprehensive":[79],"system":[80],"level":[81],"simulator.":[82],"The":[83],"studies":[84],"show":[85,161],"that":[86,162],"increasing":[87,99],"size":[89],"provides":[90],"relatively":[91],"higher":[92,148],"gain":[94],"over":[95],"baseline.":[97],"However,":[98],"number":[101],"available":[103],"will":[107],"also":[108],"increase":[109],"signaling":[110],"overhead.":[111],"terms":[113],"interval":[117,126,130],"best":[119],"is":[121,131],"achieved":[122],"with":[123,147,157],"one":[124],"slot":[125],"if":[128],"prolonged":[132],"length":[135],"Transmission":[137],"Time":[138],"Interval":[139],"(TTI),":[140],"namely":[141],"3":[142],"slots,":[143],"then":[144],"mobile":[149],"velocity":[150],"can":[151],"be":[152,170],"compromised.":[153],"Similarly,":[154],"results":[156],"additional":[163],"fast":[166],"fading":[167],"channel":[168],"should":[169],"avoided.":[171]},"counts_by_year":[{"year":2012,"cited_by_count":3}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}