{"id":"https://openalex.org/W2145392152","doi":"https://doi.org/10.1109/glocom.2011.6134381","title":"Beamforming in Cognitive Radio with Partial Channel State Information","display_name":"Beamforming in Cognitive Radio with Partial Channel State Information","publication_year":2011,"publication_date":"2011-12-01","ids":{"openalex":"https://openalex.org/W2145392152","doi":"https://doi.org/10.1109/glocom.2011.6134381","mag":"2145392152"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2011.6134381","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2011.6134381","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE Global Telecommunications Conference - GLOBECOM 2011","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/A5000444722","display_name":"Jung-Hoon Noh","orcid":"https://orcid.org/0000-0002-4599-0584"},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Jung-Hoon Noh","raw_affiliation_strings":["Division of Computer and Communications Engineering, College of Information & Communication, Korea University, Seoul, South Korea","Div. of Comput. & Commun. Eng. Coll. of Inf. & Commun., Korea Univ., Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Division of Computer and Communications Engineering, College of Information & Communication, Korea University, Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Div. of Comput. & Commun. Eng. Coll. of Inf. & Commun., Korea Univ., Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5016237867","display_name":"Seong\u2010Jun Oh","orcid":"https://orcid.org/0000-0002-0235-9987"},"institutions":[{"id":"https://openalex.org/I197347611","display_name":"Korea University","ror":"https://ror.org/047dqcg40","country_code":"KR","type":"education","lineage":["https://openalex.org/I197347611"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Seong-Jun Oh","raw_affiliation_strings":["Division of Computer and Communications Engineering, College of Information & Communication, Korea University, Seoul, South Korea","Div. of Comput. & Commun. Eng. Coll. of Inf. & Commun., Korea Univ., Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Division of Computer and Communications Engineering, College of Information & Communication, Korea University, Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Div. of Comput. & Commun. Eng. Coll. of Inf. & Commun., Korea Univ., Seoul, South Korea","institution_ids":["https://openalex.org/I197347611"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":["https://openalex.org/A5000444722"],"corresponding_institution_ids":["https://openalex.org/I197347611"],"apc_list":null,"apc_paid":null,"fwci":0.265,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.6395661,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"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/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","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"}},{"id":"https://openalex.org/T10575","display_name":"Wireless Communication Networks Research","score":0.9995999932289124,"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":0.8833785057067871},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7964768409729004},{"id":"https://openalex.org/keywords/codebook","display_name":"Codebook","score":0.7808802127838135},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.7486691474914551},{"id":"https://openalex.org/keywords/wsdma","display_name":"WSDMA","score":0.700535774230957},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.697068452835083},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6264081001281738},{"id":"https://openalex.org/keywords/overhead","display_name":"Overhead (engineering)","score":0.6260000467300415},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.543343186378479},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.5317707657814026},{"id":"https://openalex.org/keywords/cognitive-radio","display_name":"Cognitive radio","score":0.4844920337200165},{"id":"https://openalex.org/keywords/interference","display_name":"Interference (communication)","score":0.4752756655216217},{"id":"https://openalex.org/keywords/electronic-engineering","display_name":"Electronic engineering","score":0.4547897279262543},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.36706024408340454},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.34918463230133057},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.28103435039520264},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.1720905601978302},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.14358627796173096}],"concepts":[{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.8833785057067871},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7964768409729004},{"id":"https://openalex.org/C127759330","wikidata":"https://www.wikidata.org/wiki/Q637416","display_name":"Codebook","level":2,"score":0.7808802127838135},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.7486691474914551},{"id":"https://openalex.org/C57466844","wikidata":"https://www.wikidata.org/wiki/Q7955559","display_name":"WSDMA","level":5,"score":0.700535774230957},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.697068452835083},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6264081001281738},{"id":"https://openalex.org/C2779960059","wikidata":"https://www.wikidata.org/wiki/Q7113681","display_name":"Overhead (engineering)","level":2,"score":0.6260000467300415},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.543343186378479},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.5317707657814026},{"id":"https://openalex.org/C149946192","wikidata":"https://www.wikidata.org/wiki/Q3235733","display_name":"Cognitive radio","level":3,"score":0.4844920337200165},{"id":"https://openalex.org/C32022120","wikidata":"https://www.wikidata.org/wiki/Q797225","display_name":"Interference (communication)","level":3,"score":0.4752756655216217},{"id":"https://openalex.org/C24326235","wikidata":"https://www.wikidata.org/wiki/Q126095","display_name":"Electronic engineering","level":1,"score":0.4547897279262543},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.36706024408340454},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.34918463230133057},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.28103435039520264},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.1720905601978302},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.14358627796173096},{"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/glocom.2011.6134381","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2011.6134381","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2011 IEEE Global Telecommunications Conference - GLOBECOM 2011","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":14,"referenced_works":["https://openalex.org/W1980266728","https://openalex.org/W2029605802","https://openalex.org/W2059218108","https://openalex.org/W2063773941","https://openalex.org/W2074120933","https://openalex.org/W2120898255","https://openalex.org/W2124858630","https://openalex.org/W2127314111","https://openalex.org/W2131262740","https://openalex.org/W2144676920","https://openalex.org/W2152587757","https://openalex.org/W2160631319","https://openalex.org/W2168078104","https://openalex.org/W4253900906"],"related_works":["https://openalex.org/W2123156148","https://openalex.org/W2012665287","https://openalex.org/W2117054468","https://openalex.org/W2167568384","https://openalex.org/W2116541631","https://openalex.org/W2514205366","https://openalex.org/W3173074004","https://openalex.org/W1976511355","https://openalex.org/W2064335375","https://openalex.org/W2544668827"],"abstract_inverted_index":{"This":[0],"paper":[1],"focuses":[2],"on":[3,93],"a":[4,49,65,129,139,158,194],"downlink":[5,83],"beamforming":[6,44,50,74,159,181],"problem":[7,125],"in":[8,142],"the":[9,28,43,76,82,94,104,107,114,136,143,149,166,173,180,186,201,205,210,213,224],"cognitive":[10],"radio":[11],"(CR)":[12],"communication":[13],"system":[14,215],"where":[15],"primary":[16],"users":[17,22],"(PU)":[18],"coexist":[19],"with":[20,62],"secondary":[21],"(SU).":[23],"It":[24],"is":[25,99,126,175],"assumed":[26],"that":[27,103,172,179],"SU":[29,52,77,90],"transmitter":[30,78,105],"has":[31,106],"multiple":[32],"antennas":[33],"and":[34,89,152,178],"transmits":[35],"data":[36],"to":[37,70,101,120,127,148,156,165,185,191,204,223],"another":[38],"SU's":[39],"single-antenna":[40],"receiver":[41,151],"using":[42,209],"technique.":[45],"By":[46,208],"properly":[47],"designing":[48],"vector,":[51,75,182],"can":[53,216],"maximize":[54],"its":[55],"channel":[56,84,109],"gain":[57],"while":[58,197],"maintaining":[59],"an":[60,72,154,162],"interference":[61,147,190],"PU":[63,88,150,192],"below":[64,193],"predefined":[66,140,195],"level.":[67],"In":[68],"order":[69],"construct":[71],"optimal":[73],"requires":[79],"knowledge":[80],"of":[81,86,132,138],"information":[85,111],"both":[87],"receivers":[91],"sent":[92],"feedback":[95,116,123,133],"channel.":[96],"However,":[97],"it":[98],"impractical":[100],"assume":[102],"perfect":[108],"state":[110],"(CSI)":[112],"considering":[113,161],"tremendous":[115],"overhead.":[117],"One":[118],"way":[119],"tackle":[121],"this":[122],"overhead":[124],"use":[128],"finite":[130],"number":[131],"bits":[134],"indicating":[135],"index":[137],"codeword":[141],"codebook.":[144],"We":[145],"analyze":[146],"propose":[153],"algorithm":[155],"design":[157],"vector":[160],"error":[163,202],"attributed":[164,222],"partial":[167,206,225],"CSI.":[168,207,226],"The":[169],"simulation":[170],"shows":[171],"analysis":[174],"quite":[176],"accurate":[177],"designed":[183],"according":[184],"proposed":[187,211],"algorithm,":[188],"keeps":[189],"level":[196],"taking":[198],"into":[199],"account":[200],"owing":[203],"scheme,":[212],"CR":[214],"become":[217],"more":[218],"robust":[219],"against":[220],"errors":[221]},"counts_by_year":[{"year":2016,"cited_by_count":1},{"year":2013,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
