{"id":"https://openalex.org/W2077602920","doi":"https://doi.org/10.1109/tvt.2012.2236583","title":"A New Beamforming Design for Multicast Systems","display_name":"A New Beamforming Design for Multicast Systems","publication_year":2012,"publication_date":"2012-12-27","ids":{"openalex":"https://openalex.org/W2077602920","doi":"https://doi.org/10.1109/tvt.2012.2236583","mag":"2077602920"},"language":"en","primary_location":{"id":"doi:10.1109/tvt.2012.2236583","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2012.2236583","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Vehicular Technology","raw_type":"journal-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/A5021128401","display_name":"Wookbong Lee","orcid":null},"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":"Wookbong Lee","raw_affiliation_strings":["School of Electrical Engineering, Korea University, Seoul, Korea","Sch. of Electr. Eng., Korea Univ., Seoul, South Korea#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea University, Seoul, Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Sch. of Electr. Eng., Korea Univ., Seoul, South Korea#TAB#","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008913759","display_name":"Haewook Park","orcid":"https://orcid.org/0000-0003-1155-0107"},"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":"Haewook Park","raw_affiliation_strings":["School of Electrical Engineering, Korea University, Seoul, Korea","Sch. of Electr. Eng., Korea Univ., Seoul, South Korea#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea University, Seoul, Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Sch. of Electr. Eng., Korea Univ., Seoul, South Korea#TAB#","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005926359","display_name":"Han-Bae Kong","orcid":"https://orcid.org/0000-0003-2856-7060"},"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":"Han-Bae Kong","raw_affiliation_strings":["School of Electrical Engineering, Korea University, Seoul, Korea","Sch. of Electr. Eng., Korea Univ., Seoul, South Korea#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea University, Seoul, Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Sch. of Electr. Eng., Korea Univ., Seoul, South Korea#TAB#","institution_ids":["https://openalex.org/I197347611"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5109179065","display_name":"Jin Sam Kwak","orcid":null},"institutions":[{"id":"https://openalex.org/I157485424","display_name":"Korea Advanced Institute of Science and Technology","ror":"https://ror.org/05apxxy63","country_code":"KR","type":"education","lineage":["https://openalex.org/I157485424"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Jin Sam Kwak","raw_affiliation_strings":["Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea","[Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea]"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Korea Advanced Institute of Science and Technology, Daejeon, Korea","institution_ids":["https://openalex.org/I157485424"]},{"raw_affiliation_string":"[Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea]","institution_ids":["https://openalex.org/I157485424"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100697614","display_name":"Inkyu Lee","orcid":"https://orcid.org/0000-0003-3701-4433"},"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":"Inkyu Lee","raw_affiliation_strings":["School of Electrical Engineering, Korea University, Seoul, Korea","Sch. of Electr. Eng., Korea Univ., Seoul, South Korea#TAB#"],"affiliations":[{"raw_affiliation_string":"School of Electrical Engineering, Korea University, Seoul, Korea","institution_ids":["https://openalex.org/I197347611"]},{"raw_affiliation_string":"Sch. of Electr. Eng., Korea Univ., Seoul, South Korea#TAB#","institution_ids":["https://openalex.org/I197347611"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5021128401"],"corresponding_institution_ids":["https://openalex.org/I197347611"],"apc_list":null,"apc_paid":null,"fwci":0.43743348,"has_fulltext":false,"cited_by_count":14,"citation_normalized_percentile":{"value":0.69364581,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":98},"biblio":{"volume":"62","issue":"8","first_page":"4093","last_page":"4097"},"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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9994000196456909,"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":0.9979000091552734,"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":0.8395212888717651},{"id":"https://openalex.org/keywords/multicast","display_name":"Multicast","score":0.7507935762405396},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.6739255785942078},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6628488898277283},{"id":"https://openalex.org/keywords/mimo","display_name":"MIMO","score":0.6581280827522278},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6447386145591736},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.6264697313308716},{"id":"https://openalex.org/keywords/transmitter-power-output","display_name":"Transmitter power output","score":0.5736928582191467},{"id":"https://openalex.org/keywords/precoding","display_name":"Precoding","score":0.5465814471244812},{"id":"https://openalex.org/keywords/transmitter","display_name":"Transmitter","score":0.5230137705802917},{"id":"https://openalex.org/keywords/relaxation","display_name":"Relaxation (psychology)","score":0.4696580469608307},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.3995164632797241},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3827804625034332},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.27640223503112793},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.19664326310157776},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.19208988547325134},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.1859564483165741},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.15655848383903503}],"concepts":[{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.8395212888717651},{"id":"https://openalex.org/C32295351","wikidata":"https://www.wikidata.org/wiki/Q899288","display_name":"Multicast","level":2,"score":0.7507935762405396},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.6739255785942078},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6628488898277283},{"id":"https://openalex.org/C207987634","wikidata":"https://www.wikidata.org/wiki/Q176862","display_name":"MIMO","level":3,"score":0.6581280827522278},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6447386145591736},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.6264697313308716},{"id":"https://openalex.org/C65422117","wikidata":"https://www.wikidata.org/wiki/Q358527","display_name":"Transmitter power output","level":4,"score":0.5736928582191467},{"id":"https://openalex.org/C160562895","wikidata":"https://www.wikidata.org/wiki/Q7239557","display_name":"Precoding","level":4,"score":0.5465814471244812},{"id":"https://openalex.org/C47798520","wikidata":"https://www.wikidata.org/wiki/Q190157","display_name":"Transmitter","level":3,"score":0.5230137705802917},{"id":"https://openalex.org/C2776029896","wikidata":"https://www.wikidata.org/wiki/Q3935810","display_name":"Relaxation (psychology)","level":2,"score":0.4696580469608307},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.3995164632797241},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3827804625034332},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.27640223503112793},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.19664326310157776},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.19208988547325134},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.1859564483165741},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.15655848383903503},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tvt.2012.2236583","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tvt.2012.2236583","pdf_url":null,"source":{"id":"https://openalex.org/S10936095","display_name":"IEEE Transactions on Vehicular Technology","issn_l":"0018-9545","issn":["0018-9545","1939-9359"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319808","host_organization_name":"Institute of Electrical and Electronics Engineers","host_organization_lineage":["https://openalex.org/P4310319808"],"host_organization_lineage_names":["Institute of Electrical and Electronics Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEEE Transactions on Vehicular Technology","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1793664768","https://openalex.org/W1978666418","https://openalex.org/W1981044874","https://openalex.org/W2033675319","https://openalex.org/W2114755738","https://openalex.org/W2119536915","https://openalex.org/W2142800075","https://openalex.org/W2164497732"],"related_works":["https://openalex.org/W2116541631","https://openalex.org/W2167568384","https://openalex.org/W2514205366","https://openalex.org/W3173074004","https://openalex.org/W3087844490","https://openalex.org/W1976511355","https://openalex.org/W2088352174","https://openalex.org/W2544668827","https://openalex.org/W3090699061","https://openalex.org/W2082469387"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,26,54],"study":[4],"a":[5,24,38,56,66,87],"transmit":[6,32,40],"beamforming":[7,47],"technique":[8,84],"for":[9,37],"multiple-input\u2013multiple-output":[10],"(MIMO)":[11],"downlink":[12],"multicast":[13],"systems.":[14],"Assuming":[15],"that":[16,74],"channel":[17],"state":[18],"information":[19],"(CSI)":[20],"is":[21],"available":[22],"at":[23],"transmitter,":[25],"try":[27],"to":[28,91],"maximize":[29],"the":[30,45,75,79,92],"lowest":[31],"data":[33],"rate":[34],"among":[35],"users":[36],"given":[39],"power":[41],"level.":[42],"Since":[43],"finding":[44],"optimal":[46,93],"vector":[48,63],"requires":[49],"prohibitively":[50],"high":[51],"computational":[52],"complexity,":[53],"propose":[55],"reduced":[57,97],"complexity":[58],"scheme":[59,77],"by":[60],"applying":[61],"greedy":[62],"search":[64],"and":[65,85],"simple":[67],"power-allocation":[68],"(PA)":[69],"algorithm.":[70],"Simulation":[71],"results":[72],"show":[73],"proposed":[76],"outperforms":[78],"conventional":[80],"semidefinite":[81],"relaxation":[82],"(SDR)":[83],"provides":[86],"performance":[88,94],"quite":[89],"close":[90],"with":[95],"much":[96],"complexity.":[98]},"counts_by_year":[{"year":2022,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":5},{"year":2016,"cited_by_count":4},{"year":2015,"cited_by_count":1},{"year":2014,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}