{"id":"https://openalex.org/W2040899589","doi":"https://doi.org/10.1109/icumt.2010.5676480","title":"A novel combined CSI feedback mechanism to support multi-user MIMO beamforming schemes in TDD-OFDMA systems","display_name":"A novel combined CSI feedback mechanism to support multi-user MIMO beamforming schemes in TDD-OFDMA systems","publication_year":2010,"publication_date":"2010-10-01","ids":{"openalex":"https://openalex.org/W2040899589","doi":"https://doi.org/10.1109/icumt.2010.5676480","mag":"2040899589"},"language":"en","primary_location":{"id":"doi:10.1109/icumt.2010.5676480","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icumt.2010.5676480","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Congress on Ultra Modern Telecommunications and Control Systems","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/A5020862671","display_name":"G. V. Morozov","orcid":"https://orcid.org/0000-0003-3337-4984"},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Gregory Morozov","raw_affiliation_strings":["Wireless Standards and Technology, Intel Corporation, Nizhny Novgorod, Russia","Wireless Standards and Technology, Intel Corp., Nizhny Novgorod, Russia"],"affiliations":[{"raw_affiliation_string":"Wireless Standards and Technology, Intel Corporation, Nizhny Novgorod, Russia","institution_ids":[]},{"raw_affiliation_string":"Wireless Standards and Technology, Intel Corp., Nizhny Novgorod, Russia","institution_ids":["https://openalex.org/I1343180700"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5081398299","display_name":"Alexei Davydov","orcid":null},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Alexei Davydov","raw_affiliation_strings":["Wireless Standards and Technology, Intel Corporation, Nizhny Novgorod, Russia","Wireless Standards and Technology, Intel Corp., Nizhny Novgorod, Russia"],"affiliations":[{"raw_affiliation_string":"Wireless Standards and Technology, Intel Corporation, Nizhny Novgorod, Russia","institution_ids":[]},{"raw_affiliation_string":"Wireless Standards and Technology, Intel Corp., Nizhny Novgorod, Russia","institution_ids":["https://openalex.org/I1343180700"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5114015505","display_name":"Apostolos Papathanassiou","orcid":null},"institutions":[{"id":"https://openalex.org/I1343180700","display_name":"Intel (United States)","ror":"https://ror.org/01ek73717","country_code":"US","type":"company","lineage":["https://openalex.org/I1343180700"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Apostolos Papathanassiou","raw_affiliation_strings":["Wireless Standards and Technology, Intel Corporation, Santa Clara, CA, USA","Wireless Standards and Technology, Intel Corp., Santa Clara, CA, USA"],"affiliations":[{"raw_affiliation_string":"Wireless Standards and Technology, Intel Corporation, Santa Clara, CA, USA","institution_ids":["https://openalex.org/I1343180700"]},{"raw_affiliation_string":"Wireless Standards and Technology, Intel Corp., Santa Clara, CA, USA","institution_ids":["https://openalex.org/I1343180700"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5020862671"],"corresponding_institution_ids":["https://openalex.org/I1343180700"],"apc_list":null,"apc_paid":null,"fwci":0.2886,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.62563076,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"896","last_page":"900"},"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/T12791","display_name":"Full-Duplex Wireless Communications","score":0.9994000196456909,"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":0.9990000128746033,"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/beamforming","display_name":"Beamforming","score":0.8077889680862427},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.7800608277320862},{"id":"https://openalex.org/keywords/codebook","display_name":"Codebook","score":0.7456609010696411},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7306846976280212},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.6972982287406921},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6026257872581482},{"id":"https://openalex.org/keywords/multi-user-mimo","display_name":"Multi-user MIMO","score":0.5072750449180603},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.4819769263267517},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.4783163368701935},{"id":"https://openalex.org/keywords/channel-sounding","display_name":"Channel sounding","score":0.4769769608974457},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.4743940830230713},{"id":"https://openalex.org/keywords/duplex","display_name":"Duplex (building)","score":0.46014130115509033},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiple-access","display_name":"Orthogonal frequency-division multiple access","score":0.4549297094345093},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4508237838745117},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.4162081778049469},{"id":"https://openalex.org/keywords/orthogonal-frequency-division-multiplexing","display_name":"Orthogonal frequency-division multiplexing","score":0.36592897772789},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2769891619682312},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.20942026376724243},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.20460191369056702},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.1891328990459442},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17771273851394653},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.1577470898628235}],"concepts":[{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.8077889680862427},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.7800608277320862},{"id":"https://openalex.org/C127759330","wikidata":"https://www.wikidata.org/wiki/Q637416","display_name":"Codebook","level":2,"score":0.7456609010696411},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7306846976280212},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.6972982287406921},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6026257872581482},{"id":"https://openalex.org/C91330434","wikidata":"https://www.wikidata.org/wiki/Q738298","display_name":"Multi-user MIMO","level":4,"score":0.5072750449180603},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.4819769263267517},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.4783163368701935},{"id":"https://openalex.org/C2781127089","wikidata":"https://www.wikidata.org/wiki/Q25051821","display_name":"Channel sounding","level":4,"score":0.4769769608974457},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.4743940830230713},{"id":"https://openalex.org/C99611785","wikidata":"https://www.wikidata.org/wiki/Q6453233","display_name":"Duplex (building)","level":3,"score":0.46014130115509033},{"id":"https://openalex.org/C2775907427","wikidata":"https://www.wikidata.org/wiki/Q2697649","display_name":"Orthogonal frequency-division multiple access","level":4,"score":0.4549297094345093},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4508237838745117},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.4162081778049469},{"id":"https://openalex.org/C40409654","wikidata":"https://www.wikidata.org/wiki/Q375889","display_name":"Orthogonal frequency-division multiplexing","level":3,"score":0.36592897772789},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2769891619682312},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.20942026376724243},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.20460191369056702},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.1891328990459442},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17771273851394653},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.1577470898628235},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C54355233","wikidata":"https://www.wikidata.org/wiki/Q7162","display_name":"Genetics","level":1,"score":0.0},{"id":"https://openalex.org/C552990157","wikidata":"https://www.wikidata.org/wiki/Q7430","display_name":"DNA","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/icumt.2010.5676480","is_oa":false,"landing_page_url":"https://doi.org/10.1109/icumt.2010.5676480","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"International Congress on Ultra Modern Telecommunications and Control Systems","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":11,"referenced_works":["https://openalex.org/W1577554631","https://openalex.org/W2023877378","https://openalex.org/W2074120933","https://openalex.org/W2099053321","https://openalex.org/W2112277368","https://openalex.org/W2136919429","https://openalex.org/W2138030905","https://openalex.org/W2147906061","https://openalex.org/W2164497732","https://openalex.org/W2164536085","https://openalex.org/W2172058530"],"related_works":["https://openalex.org/W2123156148","https://openalex.org/W2012665287","https://openalex.org/W2769891750","https://openalex.org/W2489379490","https://openalex.org/W2025974371","https://openalex.org/W2141031289","https://openalex.org/W2216248654","https://openalex.org/W3127922939","https://openalex.org/W4385649691","https://openalex.org/W1624127656"],"abstract_inverted_index":{"In":[0,90,141,201],"modern":[1],"Orthogonal":[2],"Frequency":[3],"Division":[4,122],"Multiple":[5],"Access":[6],"(OFDMA)":[7],"systems":[8,118],"Multi-User":[9],"Multiple-Input":[10],"Multiple-Output":[11],"(MU-MIMO)":[12],"techniques":[13,53],"are":[14,60,130],"employed":[15,126],"to":[16,41,62,69,107,253,258],"increase":[17],"the":[18,34,47,55,73,78,86,131,137,142,145,148,166,170,187,191,197,202,205,209,229,233,242,259,268],"cell":[19],"and":[20,136,183],"user":[21],"throughput":[22,32],"without":[23],"additional":[24],"bandwidth":[25],"or":[26],"transmit":[27],"power":[28],"requirements.":[29],"The":[30,125,224],"increased":[31],"in":[33,77,113,120,177,228],"downlink":[35],"is":[36,88,152,159,175,219],"achieved":[37,262],"by":[38],"simultaneous":[39],"transmission":[40],"multiple":[42],"mobile":[43],"stations":[44],"(MSs)":[45],"over":[46],"same":[48],"time-frequency":[49],"resources.":[50],"MU-MIMO":[51,74,114,167],"beamforming":[52,75,115,168],"at":[54,267],"base":[56],"station":[57],"(BS)":[58],"transmitter":[59],"used":[61,248],"mitigate":[63],"interference":[64,184],"from":[65,85],"one":[66],"data":[67],"stream":[68],"another.":[70],"To":[71],"enable":[72],"operation":[76],"downlink,":[79],"channel":[80],"state":[81],"information":[82],"(CSI)":[83],"feedback":[84,98,105,134,139,150,173,199,211,216,237,245],"MS":[87],"required.":[89],"this":[91],"paper":[92,230],"we":[93],"propose":[94],"a":[95,214],"novel":[96],"CSI":[97,104,127,172,236,244,265],"mechanism":[99,195,238],"which":[100],"combines":[101],"two":[102,149],"existing":[103,243],"schemes":[106,129,151,246],"achieve":[108],"significant":[109],"system":[110,260],"performance":[111,146,255,261],"improvements":[112],"for":[116,162],"OFDMA":[117],"operating":[119],"Time":[121],"Duplex":[123],"(TDD).":[124],"reporting":[128,194],"quantized,":[132],"codebook-based":[133,193],"scheme":[135,174,218],"sounding-based":[138,171,198],"scheme.":[140,200],"first":[143],"step,":[144,204],"of":[147,165,208],"evaluated":[153,220],"separately":[154,249],"through":[155,221],"system-level":[156],"simulations.":[157,223],"It":[158],"shown":[160],"that":[161,232],"accurate":[163],"calculation":[164],"weights,":[169],"preferable":[176],"deployment":[178,189],"scenarios":[179],"with":[180,263],"low":[181],"noise":[182],"levels.":[185],"For":[186],"remaining":[188],"scenarios,":[190],"quantized":[192],"outperforms":[196,241],"second":[203],"proposed":[206,234],"combination":[207],"considered":[210],"mechanisms":[212],"using":[213],"simple":[215],"selection":[217],"extensive":[222],"simulation":[225],"results":[226],"presented":[227],"show":[231],"combined":[235],"not":[239],"only":[240],"if":[247],"but":[250],"also":[251],"leads":[252],"marginal":[254],"degradation":[256],"compared":[257],"prefect":[264],"knowledge":[266],"BS":[269],"transmitter.":[270]},"counts_by_year":[{"year":2017,"cited_by_count":1},{"year":2014,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}