{"id":"https://openalex.org/W2559537540","doi":"https://doi.org/10.1109/access.2016.2633488","title":"Joint Caching Placement and User Association for Minimizing User Download Delay","display_name":"Joint Caching Placement and User Association for Minimizing User Download Delay","publication_year":2016,"publication_date":"2016-01-01","ids":{"openalex":"https://openalex.org/W2559537540","doi":"https://doi.org/10.1109/access.2016.2633488","mag":"2559537540"},"language":"en","primary_location":{"id":"doi:10.1109/access.2016.2633488","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2016.2633488","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"type":"article","indexed_in":["crossref","doaj"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://doi.org/10.1109/access.2016.2633488","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5100371996","display_name":"Yue Wang","orcid":"https://orcid.org/0000-0002-1287-7710"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Yue Wang","raw_affiliation_strings":["Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100624765","display_name":"Xiaofeng Tao","orcid":"https://orcid.org/0000-0001-9518-1622"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaofeng Tao","raw_affiliation_strings":["Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100686652","display_name":"Xuefei Zhang","orcid":"https://orcid.org/0000-0001-7096-9667"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuefei Zhang","raw_affiliation_strings":["Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Wireless Technology Innovation Institute, Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5036000787","display_name":"Guoqiang Mao","orcid":"https://orcid.org/0000-0002-3598-4949"},"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"]},{"id":"https://openalex.org/I42894916","display_name":"Data61","ror":"https://ror.org/03q397159","country_code":"AU","type":"other","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I42894916","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Guoqiang Mao","raw_affiliation_strings":["School of Computing and Communications, University of Technology Sydney and National ICT Australia, Sydney, NSW, Australia"],"affiliations":[{"raw_affiliation_string":"School of Computing and Communications, University of Technology Sydney and National ICT Australia, Sydney, NSW, Australia","institution_ids":["https://openalex.org/I42894916","https://openalex.org/I114017466"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5100371996"],"corresponding_institution_ids":["https://openalex.org/I139759216"],"apc_list":{"value":1850,"currency":"USD","value_usd":1850},"apc_paid":{"value":1850,"currency":"USD","value_usd":1850},"fwci":14.1749,"has_fulltext":false,"cited_by_count":86,"citation_normalized_percentile":{"value":0.99057299,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"4","issue":null,"first_page":"8625","last_page":"8633"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":1.0,"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":1.0,"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":0.9742000102996826,"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/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.9645000100135803,"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/backhaul","display_name":"Backhaul (telecommunications)","score":0.8570177555084229},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7935770750045776},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.6092690229415894},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.5928763151168823},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.5224453806877136},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.5141775608062744},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.5071253776550293},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.45781224966049194},{"id":"https://openalex.org/keywords/latency","display_name":"Latency (audio)","score":0.4451352059841156},{"id":"https://openalex.org/keywords/computational-complexity-theory","display_name":"Computational complexity theory","score":0.4280540943145752},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.3473334312438965},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.2818242907524109},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.13113701343536377},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.08017510175704956}],"concepts":[{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.8570177555084229},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7935770750045776},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.6092690229415894},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.5928763151168823},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.5224453806877136},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.5141775608062744},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.5071253776550293},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.45781224966049194},{"id":"https://openalex.org/C82876162","wikidata":"https://www.wikidata.org/wiki/Q17096504","display_name":"Latency (audio)","level":2,"score":0.4451352059841156},{"id":"https://openalex.org/C179799912","wikidata":"https://www.wikidata.org/wiki/Q205084","display_name":"Computational complexity theory","level":2,"score":0.4280540943145752},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.3473334312438965},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.2818242907524109},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.13113701343536377},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.08017510175704956}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/access.2016.2633488","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2016.2633488","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},{"id":"pmh:oai:doaj.org/article:9c09ea8f748146548156823580e29bb1","is_oa":true,"landing_page_url":"https://doaj.org/article/9c09ea8f748146548156823580e29bb1","pdf_url":null,"source":{"id":"https://openalex.org/S112646816","display_name":"SHILAP Revista de lepidopterolog\u00eda","issn_l":"0300-5267","issn":["0300-5267","2340-4078"],"is_oa":true,"is_in_doaj":true,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"journal"},"license":"cc-by-sa","license_id":"https://openalex.org/licenses/cc-by-sa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Access, Vol 4, Pp 8625-8633 (2016)","raw_type":"article"},{"id":"pmh:oai:opus.lib.uts.edu.au:10453/122880","is_oa":false,"landing_page_url":"http://hdl.handle.net/10453/122880","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":"doi:10.1109/access.2016.2633488","is_oa":true,"landing_page_url":"https://doi.org/10.1109/access.2016.2633488","pdf_url":null,"source":{"id":"https://openalex.org/S2485537415","display_name":"IEEE Access","issn_l":"2169-3536","issn":["2169-3536"],"is_oa":true,"is_in_doaj":true,"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 Access","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G3470537210","display_name":null,"funder_award_id":"61428102","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3730135242","display_name":null,"funder_award_id":"61461136002","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":29,"referenced_works":["https://openalex.org/W1479863711","https://openalex.org/W1551092876","https://openalex.org/W1557310162","https://openalex.org/W1960633731","https://openalex.org/W1972738071","https://openalex.org/W1975651401","https://openalex.org/W1987142024","https://openalex.org/W1988834815","https://openalex.org/W2003892785","https://openalex.org/W2009708702","https://openalex.org/W2039090559","https://openalex.org/W2042077652","https://openalex.org/W2051773775","https://openalex.org/W2059973889","https://openalex.org/W2076238075","https://openalex.org/W2086664582","https://openalex.org/W2096220631","https://openalex.org/W2103972037","https://openalex.org/W2112053513","https://openalex.org/W2137254586","https://openalex.org/W2163407995","https://openalex.org/W2222512263","https://openalex.org/W2798766386","https://openalex.org/W2963155944","https://openalex.org/W2964011116","https://openalex.org/W3141776272","https://openalex.org/W4210431029","https://openalex.org/W4250589301","https://openalex.org/W4254313632"],"related_works":["https://openalex.org/W4297310313","https://openalex.org/W2963149344","https://openalex.org/W2901118320","https://openalex.org/W2097644939","https://openalex.org/W2012551222","https://openalex.org/W4200445394","https://openalex.org/W4303414366","https://openalex.org/W2041847789","https://openalex.org/W1724300815","https://openalex.org/W2357429841"],"abstract_inverted_index":{"To":[0],"alleviate":[1],"the":[2,22,27,45,53,56,71,79,93,107,116,125,134,144,150,175],"backhaul":[3,36,57],"burden":[4],"and":[5,38,62,68,73,96,137,149],"reduce":[6,115],"user-perceived":[7],"latency,":[8],"content":[9],"caching":[10,23,72,95],"at":[11,26,177],"base":[12],"stations":[13],"has":[14],"been":[15],"identified":[16],"as":[17],"a":[18,86,104,118,158,178],"key":[19],"technology.":[20],"However,":[21],"strategy":[24],"design":[25,67],"wireless":[28,39,63],"edge":[29],"is":[30,83,100,121],"challenging,":[31],"especially":[32],"when":[33],"both":[34],"wired":[35],"condition":[37],"channel":[40,64],"quality":[41],"are":[42],"considered":[43],"in":[44,58,85,112,167,174],"optimization.":[46],"In":[47],"this":[48],"paper,":[49],"taking":[50],"into":[51,128],"account":[52],"conditions":[54],"of":[55,60,70,146,169,181],"terms":[59],"delay":[61,82,170],"quality,":[65],"joint":[66,94],"optimization":[69,98],"user":[74],"association":[75,97],"policy":[76],"to":[77,106,114,164],"minimize":[78],"average":[80],"download":[81],"studied":[84],"cache-enabled":[87],"heterogeneous":[88],"network.":[89],"We":[90],"first":[91],"prove":[92],"problem":[99,127,131],"NP-hard":[101,126],"based":[102],"on":[103],"reduction":[105],"facility":[108],"location":[109],"problem.":[110],"Furthermore,":[111],"order":[113],"complexity,":[117],"distributed":[119],"algorithm":[120],"developed":[122],"by":[123,133],"decomposing":[124],"an":[129],"assignment":[130],"solvable":[132],"Hungarian":[135],"method":[136],"two":[138],"simple":[139],"linear":[140],"integer":[141],"subproblems,":[142],"with":[143,172],"aid":[145],"McCormick":[147],"envelopes":[148],"Lagrange":[151],"partial":[152],"relaxation":[153],"method.":[154],"Simulation":[155],"results":[156],"reveal":[157],"near-optimal":[159],"performance":[160],"that":[161],"performs":[162],"up":[163],"22%":[165],"better":[166],"term":[168],"compared":[171],"those":[173],"literatures":[176],"low":[179],"complexity":[180],"O(nm":[182],"<sup":[183,187],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[184,188],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">3</sup>":[185],"/\u03b5":[186],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">2</sup>":[189],").":[190]},"counts_by_year":[{"year":2024,"cited_by_count":4},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":4},{"year":2021,"cited_by_count":9},{"year":2020,"cited_by_count":16},{"year":2019,"cited_by_count":25},{"year":2018,"cited_by_count":14},{"year":2017,"cited_by_count":9}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}