{"id":"https://openalex.org/W2911893217","doi":"https://doi.org/10.1109/tcomm.2019.2894797","title":"Collaborative Multicast Beamforming for Content Delivery by Cache-Enabled Ultra Dense Networks","display_name":"Collaborative Multicast Beamforming for Content Delivery by Cache-Enabled Ultra Dense Networks","publication_year":2019,"publication_date":"2019-01-24","ids":{"openalex":"https://openalex.org/W2911893217","doi":"https://doi.org/10.1109/tcomm.2019.2894797","mag":"2911893217"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2019.2894797","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2019.2894797","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://pureadmin.qub.ac.uk/ws/files/169759923/TPS_18_0268.R2.pdf","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5101772613","display_name":"Huy T. Nguyen","orcid":"https://orcid.org/0000-0003-3226-250X"},"institutions":[{"id":"https://openalex.org/I104338594","display_name":"Inje University","ror":"https://ror.org/04xqwq985","country_code":"KR","type":"education","lineage":["https://openalex.org/I104338594"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Huy T. Nguyen","raw_affiliation_strings":["Department of Information and Communication System, Inje University, Gimhae, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Information and Communication System, Inje University, Gimhae, South Korea","institution_ids":["https://openalex.org/I104338594"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5046645515","display_name":"Hoang Duong Tuan","orcid":"https://orcid.org/0000-0003-0292-6061"},"institutions":[{"id":"https://openalex.org/I114017466","display_name":"University of Technology Sydney","ror":"https://ror.org/03f0f6041","country_code":"AU","type":"education","lineage":["https://openalex.org/I114017466"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Hoang Duong Tuan","raw_affiliation_strings":["School of Electrical and Data Engineering, University of Technology Sydney, Broadway, NSW, Australia"],"affiliations":[{"raw_affiliation_string":"School of Electrical and Data Engineering, University of Technology Sydney, Broadway, NSW, Australia","institution_ids":["https://openalex.org/I114017466"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5049089848","display_name":"Trung Q. Duong","orcid":"https://orcid.org/0000-0002-4703-4836"},"institutions":[{"id":"https://openalex.org/I126231945","display_name":"Queen's University Belfast","ror":"https://ror.org/00hswnk62","country_code":"GB","type":"education","lineage":["https://openalex.org/I126231945"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Trung Q. Duong","raw_affiliation_strings":["School of Electronics, Electrical Engineering and Computer Science, Queen\u2019s University Belfast, Belfast, U.K","School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast, U.K"],"affiliations":[{"raw_affiliation_string":"School of Electronics, Electrical Engineering and Computer Science, Queen\u2019s University Belfast, Belfast, U.K","institution_ids":["https://openalex.org/I126231945"]},{"raw_affiliation_string":"School of Electronics, Electrical Engineering and Computer Science, Queen's University Belfast, Belfast, U.K","institution_ids":["https://openalex.org/I126231945"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042307561","display_name":"H. Vincent Poor","orcid":"https://orcid.org/0000-0002-2062-131X"},"institutions":[{"id":"https://openalex.org/I20089843","display_name":"Princeton University","ror":"https://ror.org/00hx57361","country_code":"US","type":"education","lineage":["https://openalex.org/I20089843"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"H. Vincent Poor","raw_affiliation_strings":["Department of Electrical Engineering, Princeton University, Princeton, NJ, USA"],"affiliations":[{"raw_affiliation_string":"Department of Electrical Engineering, Princeton University, Princeton, NJ, USA","institution_ids":["https://openalex.org/I20089843"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5085192467","display_name":"Won\u2010Joo Hwang","orcid":"https://orcid.org/0000-0001-8398-564X"},"institutions":[{"id":"https://openalex.org/I104338594","display_name":"Inje University","ror":"https://ror.org/04xqwq985","country_code":"KR","type":"education","lineage":["https://openalex.org/I104338594"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Won-Joo Hwang","raw_affiliation_strings":["Department of Information and Communication System, Inje University, Gimhae, South Korea"],"affiliations":[{"raw_affiliation_string":"Department of Information and Communication System, Inje University, Gimhae, South Korea","institution_ids":["https://openalex.org/I104338594"]}]}],"institutions":[],"countries_distinct_count":4,"institutions_distinct_count":5,"corresponding_author_ids":["https://openalex.org/A5101772613"],"corresponding_institution_ids":["https://openalex.org/I104338594"],"apc_list":null,"apc_paid":null,"fwci":5.1984,"has_fulltext":true,"cited_by_count":32,"citation_normalized_percentile":{"value":0.95805144,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":96,"max":99},"biblio":{"volume":"67","issue":"5","first_page":"3396","last_page":"3406"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","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"}},"topics":[{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","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/T10796","display_name":"Cooperative Communication and Network Coding","score":0.9973000288009644,"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9625999927520752,"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/multicast","display_name":"Multicast","score":0.8430062532424927},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8095675706863403},{"id":"https://openalex.org/keywords/backhaul","display_name":"Backhaul (telecommunications)","score":0.7920711040496826},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6673551797866821},{"id":"https://openalex.org/keywords/beamforming","display_name":"Beamforming","score":0.6614999771118164},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.6261962652206421},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.4519573748111725},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.2683240473270416},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.17155492305755615}],"concepts":[{"id":"https://openalex.org/C32295351","wikidata":"https://www.wikidata.org/wiki/Q899288","display_name":"Multicast","level":2,"score":0.8430062532424927},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8095675706863403},{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.7920711040496826},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6673551797866821},{"id":"https://openalex.org/C54197355","wikidata":"https://www.wikidata.org/wiki/Q5782992","display_name":"Beamforming","level":2,"score":0.6614999771118164},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.6261962652206421},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.4519573748111725},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.2683240473270416},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.17155492305755615}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/tcomm.2019.2894797","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2019.2894797","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"},{"id":"pmh:oai:pure.qub.ac.uk/portal:publications/c6ff2263-dedf-4f88-a012-4ebb3fdceed1","is_oa":true,"landing_page_url":"https://pure.qub.ac.uk/en/publications/c6ff2263-dedf-4f88-a012-4ebb3fdceed1","pdf_url":"https://pureadmin.qub.ac.uk/ws/files/169759923/TPS_18_0268.R2.pdf","source":{"id":"https://openalex.org/S4306402319","display_name":"Research Portal (Queen's University Belfast)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I126231945","host_organization_name":"Queen's University Belfast","host_organization_lineage":["https://openalex.org/I126231945"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Nguyen , H T , Tuan , H D , Duong , Q , Poor , H V & Hwang , W-J 2019 , ' Collaborative Multicast Beamforming for Content Delivery by Cache-enabled Ultra Dense Networks ' , IEEE Transactions on Communications , vol. 67 , no. 5 , pp. 3396 - 3406 . https://doi.org/10.1109/TCOMM.2019.2894797","raw_type":"article"},{"id":"pmh:oai:opus.lib.uts.edu.au:10453/134981","is_oa":false,"landing_page_url":"http://hdl.handle.net/10453/134981","pdf_url":null,"source":{"id":"https://openalex.org/S4306401357","display_name":"UTS ePRESS (University of Technology Sydney)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I114017466","host_organization_name":"University of Technology Sydney","host_organization_lineage":["https://openalex.org/I114017466"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"}],"best_oa_location":{"id":"pmh:oai:pure.qub.ac.uk/portal:publications/c6ff2263-dedf-4f88-a012-4ebb3fdceed1","is_oa":true,"landing_page_url":"https://pure.qub.ac.uk/en/publications/c6ff2263-dedf-4f88-a012-4ebb3fdceed1","pdf_url":"https://pureadmin.qub.ac.uk/ws/files/169759923/TPS_18_0268.R2.pdf","source":{"id":"https://openalex.org/S4306402319","display_name":"Research Portal (Queen's University Belfast)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I126231945","host_organization_name":"Queen's University Belfast","host_organization_lineage":["https://openalex.org/I126231945"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"Nguyen , H T , Tuan , H D , Duong , Q , Poor , H V & Hwang , W-J 2019 , ' Collaborative Multicast Beamforming for Content Delivery by Cache-enabled Ultra Dense Networks ' , IEEE Transactions on Communications , vol. 67 , no. 5 , pp. 3396 - 3406 . https://doi.org/10.1109/TCOMM.2019.2894797","raw_type":"article"},"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/7","score":0.6399999856948853,"display_name":"Affordable and clean energy"}],"awards":[{"id":"https://openalex.org/G3515941858","display_name":null,"funder_award_id":"CNS-1702808","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G3878536856","display_name":null,"funder_award_id":"RF1415\\14\\22","funder_id":"https://openalex.org/F4320320005","funder_display_name":"Royal Academy of Engineering"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320320005","display_name":"Royal Academy of Engineering","ror":"https://ror.org/0526snb40"},{"id":"https://openalex.org/F4320335489","display_name":"Institute for Information and Communications Technology Promotion","ror":"https://ror.org/01g0hqq23"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W2911893217.pdf","grobid_xml":"https://content.openalex.org/works/W2911893217.grobid-xml"},"referenced_works_count":39,"referenced_works":["https://openalex.org/W1951602908","https://openalex.org/W1969648546","https://openalex.org/W2009708702","https://openalex.org/W2036672508","https://openalex.org/W2043827481","https://openalex.org/W2051773775","https://openalex.org/W2082133464","https://openalex.org/W2108662631","https://openalex.org/W2109983959","https://openalex.org/W2112053513","https://openalex.org/W2124568462","https://openalex.org/W2129821947","https://openalex.org/W2136822103","https://openalex.org/W2191948661","https://openalex.org/W2208334390","https://openalex.org/W2213621529","https://openalex.org/W2258632262","https://openalex.org/W2292994152","https://openalex.org/W2321936408","https://openalex.org/W2345821518","https://openalex.org/W2519564973","https://openalex.org/W2534855882","https://openalex.org/W2555370795","https://openalex.org/W2556601991","https://openalex.org/W2601341989","https://openalex.org/W2604497343","https://openalex.org/W2613346588","https://openalex.org/W2963329943","https://openalex.org/W2963721865","https://openalex.org/W2963805754","https://openalex.org/W2963909124","https://openalex.org/W3100538838","https://openalex.org/W3100640070","https://openalex.org/W3101474566","https://openalex.org/W3103833233","https://openalex.org/W3104194621","https://openalex.org/W3104205931","https://openalex.org/W4249840661","https://openalex.org/W6737988881"],"related_works":["https://openalex.org/W2765089333","https://openalex.org/W4297311468","https://openalex.org/W2963440157","https://openalex.org/W2898650565","https://openalex.org/W2915882743","https://openalex.org/W2883068039","https://openalex.org/W2964194703","https://openalex.org/W2297074413","https://openalex.org/W2199202516","https://openalex.org/W3164588339"],"abstract_inverted_index":{"Caching":[0],"and":[1,43,100,111,174],"multicast":[2,70,138],"have":[3],"surged":[4],"as":[5,87],"effective":[6],"tools":[7],"to":[8,38,79,94,117,122,165],"alleviate":[9],"the":[10,14,35,40,52,81,88,91,95,119,129,167,171,179,184],"heavy":[11],"load":[12],"from":[13],"backhaul":[15,44,101],"links":[16],"while":[17,127],"enabling":[18],"content-centric":[19],"delivery":[20,57],"in":[21,29,55,72,103],"communication":[22],"networks.":[23,75],"The":[24,76],"main":[25],"focus":[26],"of":[27,50,90,97,136,170,181],"work":[28],"this":[30,65],"area":[31],"has":[32,58],"been":[33,60],"on":[34,183],"cache":[36],"placements":[37],"manage":[39],"network":[41],"delay":[42],"transmission":[45],"cost.":[46],"An":[47],"important":[48],"issue":[49,66],"optimizing":[51],"cost":[53,82,185],"efficiency":[54,169],"content":[56,92,107],"not":[59],"addressed.":[61],"This":[62],"paper":[63],"tackles":[64],"by":[67],"proposing":[68],"collaborative":[69,137],"beamforming":[71,110,114,139],"cache-enabled":[73],"ultra-dense":[74],"objective":[77],"is":[78,85],"maximize":[80],"efficiency,":[83],"which":[84,146],"defined":[86],"ratio":[89],"throughput":[93],"sum":[96],"power":[98],"consumption":[99],"cost,":[102],"providing":[104],"quality-of-service":[105],"for":[106,132,158],"delivery.":[108],"Zero-forcing":[109],"generalized":[112],"zero-forcing":[113],"are":[115,141,156,163],"employed":[116],"force":[118],"multi-content":[120],"interference":[121],"zero":[123],"or":[124],"mitigate":[125],"it":[126],"amplifying":[128],"desired":[130],"signals":[131],"users.":[133],"These":[134],"problems":[135],"design":[140],"computationally":[142],"difficult.":[143],"Path-following":[144],"algorithms,":[145],"invoke":[147],"a":[148],"simple":[149],"convex":[150],"quadratic":[151],"program":[152],"at":[153],"each":[154],"iteration,":[155],"developed":[157],"their":[159],"solution.":[160],"Numerical":[161],"results":[162],"provided":[164],"demonstrate":[166],"computational":[168],"proposed":[172],"algorithms":[173],"also":[175],"give":[176],"insights":[177],"into":[178],"impact":[180],"caching":[182],"efficiency.":[186]},"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2022,"cited_by_count":3},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":14},{"year":2019,"cited_by_count":6}],"updated_date":"2026-04-05T17:49:38.594831","created_date":"2025-10-10T00:00:00"}