{"id":"https://openalex.org/W2784017333","doi":"https://doi.org/10.1109/glocom.2017.8254686","title":"Two Time-Scale Content Caching and User Association in 5G Heterogeneous Networks","display_name":"Two Time-Scale Content Caching and User Association in 5G Heterogeneous Networks","publication_year":2017,"publication_date":"2017-12-01","ids":{"openalex":"https://openalex.org/W2784017333","doi":"https://doi.org/10.1109/glocom.2017.8254686","mag":"2784017333"},"language":"en","primary_location":{"id":"doi:10.1109/glocom.2017.8254686","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2017.8254686","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2017 - 2017 IEEE Global Communications Conference","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/A5049511446","display_name":"Jeongho Kwak","orcid":"https://orcid.org/0000-0002-5737-0665"},"institutions":[{"id":"https://openalex.org/I205274468","display_name":"Trinity College Dublin","ror":"https://ror.org/02tyrky19","country_code":"IE","type":"education","lineage":["https://openalex.org/I205274468"]}],"countries":["IE"],"is_corresponding":true,"raw_author_name":"Jeongho Kwak","raw_affiliation_strings":["Trinity College, School of Computer Science & Statistics, Dublin, Ireland"],"affiliations":[{"raw_affiliation_string":"Trinity College, School of Computer Science & Statistics, Dublin, Ireland","institution_ids":["https://openalex.org/I205274468"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5029986211","display_name":"Long Bao Le","orcid":"https://orcid.org/0000-0003-3577-6530"},"institutions":[{"id":"https://openalex.org/I39481719","display_name":"Institut National de la Recherche Scientifique","ror":"https://ror.org/04td37d32","country_code":"CA","type":"education","lineage":["https://openalex.org/I39481719","https://openalex.org/I49663120"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Long Bao Le","raw_affiliation_strings":["INRS-EMT, University of Quebec, Canada"],"affiliations":[{"raw_affiliation_string":"INRS-EMT, University of Quebec, Canada","institution_ids":["https://openalex.org/I39481719"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100733413","display_name":"Xianbin Wang","orcid":"https://orcid.org/0000-0003-4890-0748"},"institutions":[{"id":"https://openalex.org/I125749732","display_name":"Western University","ror":"https://ror.org/02grkyz14","country_code":"CA","type":"education","lineage":["https://openalex.org/I125749732"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Xianbin Wang","raw_affiliation_strings":["Electrical and Computer Engineering, Western University, Canada"],"affiliations":[{"raw_affiliation_string":"Electrical and Computer Engineering, Western University, Canada","institution_ids":["https://openalex.org/I125749732"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5049511446"],"corresponding_institution_ids":["https://openalex.org/I205274468"],"apc_list":null,"apc_paid":null,"fwci":1.6576,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.86917552,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"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/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":0.9970999956130981,"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/T11409","display_name":"Advanced Wireless Network Optimization","score":0.9768999814987183,"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/computer-science","display_name":"Computer science","score":0.8441789150238037},{"id":"https://openalex.org/keywords/greedy-algorithm","display_name":"Greedy algorithm","score":0.6091277599334717},{"id":"https://openalex.org/keywords/exploit","display_name":"Exploit","score":0.5276768803596497},{"id":"https://openalex.org/keywords/content","display_name":"Content (measure theory)","score":0.5086299180984497},{"id":"https://openalex.org/keywords/scale","display_name":"Scale (ratio)","score":0.49073803424835205},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.4436700940132141},{"id":"https://openalex.org/keywords/association","display_name":"Association (psychology)","score":0.4413033425807953},{"id":"https://openalex.org/keywords/popularity","display_name":"Popularity","score":0.4325949251651764},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4217206537723541},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.3826374113559723},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.29562079906463623},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.07558611035346985}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8441789150238037},{"id":"https://openalex.org/C51823790","wikidata":"https://www.wikidata.org/wiki/Q504353","display_name":"Greedy algorithm","level":2,"score":0.6091277599334717},{"id":"https://openalex.org/C165696696","wikidata":"https://www.wikidata.org/wiki/Q11287","display_name":"Exploit","level":2,"score":0.5276768803596497},{"id":"https://openalex.org/C2778152352","wikidata":"https://www.wikidata.org/wiki/Q5165061","display_name":"Content (measure theory)","level":2,"score":0.5086299180984497},{"id":"https://openalex.org/C2778755073","wikidata":"https://www.wikidata.org/wiki/Q10858537","display_name":"Scale (ratio)","level":2,"score":0.49073803424835205},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.4436700940132141},{"id":"https://openalex.org/C142853389","wikidata":"https://www.wikidata.org/wiki/Q744778","display_name":"Association (psychology)","level":2,"score":0.4413033425807953},{"id":"https://openalex.org/C2780586970","wikidata":"https://www.wikidata.org/wiki/Q1357284","display_name":"Popularity","level":2,"score":0.4325949251651764},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4217206537723541},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3826374113559723},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.29562079906463623},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.07558611035346985},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C111472728","wikidata":"https://www.wikidata.org/wiki/Q9471","display_name":"Epistemology","level":1,"score":0.0},{"id":"https://openalex.org/C15744967","wikidata":"https://www.wikidata.org/wiki/Q9418","display_name":"Psychology","level":0,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C77805123","wikidata":"https://www.wikidata.org/wiki/Q161272","display_name":"Social psychology","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/glocom.2017.8254686","is_oa":false,"landing_page_url":"https://doi.org/10.1109/glocom.2017.8254686","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"GLOBECOM 2017 - 2017 IEEE Global Communications Conference","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.6000000238418579}],"awards":[],"funders":[{"id":"https://openalex.org/F4320320300","display_name":"European Commission","ror":"https://ror.org/00k4n6c32"},{"id":"https://openalex.org/F4320334593","display_name":"Natural Sciences and Engineering Research Council of Canada","ror":"https://ror.org/01h531d29"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":16,"referenced_works":["https://openalex.org/W2015198187","https://openalex.org/W2033885045","https://openalex.org/W2058254491","https://openalex.org/W2061442141","https://openalex.org/W2065092668","https://openalex.org/W2110519532","https://openalex.org/W2136519475","https://openalex.org/W2306649852","https://openalex.org/W2336754592","https://openalex.org/W2405190381","https://openalex.org/W2559537540","https://openalex.org/W2741593886","https://openalex.org/W2784017333","https://openalex.org/W3099607069","https://openalex.org/W3152252545","https://openalex.org/W4254565654"],"related_works":["https://openalex.org/W4387497383","https://openalex.org/W3183948672","https://openalex.org/W3173606202","https://openalex.org/W3110381201","https://openalex.org/W2948807893","https://openalex.org/W2935909890","https://openalex.org/W2778153218","https://openalex.org/W2758277628","https://openalex.org/W1531601525","https://openalex.org/W2368605798"],"abstract_inverted_index":{"In":[0],"this":[1],"paper,":[2],"we":[3,73,146],"develop":[4,64],"a":[5,15,89,95,126],"content":[6,23,28,69,91,97,164,173,180],"caching":[7,29,70,92,98,136],"and":[8,30,40,63,68,94,151,175],"flow":[9],"level":[10],"BS-user":[11,31,66,77],"association":[12,32,67,78],"framework":[13],"in":[14,49,83,103,142,166],"network":[16,59],"environment":[17],"with":[18,37],"the":[19,26,54,65,84,104,112,116,122,130],"spatial":[20,161],"variation":[21],"of":[22,57,115,129,163,168],"popularity.":[24],"Because":[25],"studied":[27],"functions":[33,60],"are":[34],"tightly":[35],"intertwined":[36],"each":[38,182],"other,":[39],"their":[41],"decision":[42],"time":[43,86,106],"scales":[44],"can":[45],"be":[46],"very":[47],"different":[48],"practice,":[50],"our":[51],"design":[52],"considers":[53],"time-scale":[55],"separation":[56],"these":[58],"to":[61],"tackle":[62],"policies.":[71],"Specifically,":[72],"propose":[74],"an":[75],"optimal":[76,131],"algorithm,":[79,99],"namely":[80,100],"OptUA,":[81],"operating":[82,102],"short":[85],"scale":[87],"for":[88,133],"given":[90],"solution,":[93],"greedy":[96],"GCC,":[101],"long":[105],"scale.":[107],"The":[108],"GCC":[109,123,152],"algorithm":[110,124],"exploits":[111],"submodularity":[113],"characteristics":[114],"objective":[117],"function":[118],"which":[119,157],"ensures":[120],"that":[121,148],"achieves":[125],"constant":[127],"fraction":[128],"performance":[132],"most":[134],"feasible":[135],"sets.":[137],"Via":[138],"extensive":[139],"numerical":[140],"studies":[141],"heterogeneous":[143],"cellular":[144],"networks,":[145],"demonstrate":[147],"proposed":[149],"OptUA":[150],"algorithms":[153,156],"outperform":[154],"other":[155],"do":[158],"not":[159],"consider":[160],"variations":[162],"popularity":[165],"terms":[167],"average":[169,176],"end-to-end":[170],"delay":[171],"per":[172,179],"request":[174],"system":[177],"load":[178],"at":[181],"BS.":[183]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2022,"cited_by_count":1},{"year":2020,"cited_by_count":3},{"year":2019,"cited_by_count":3},{"year":2018,"cited_by_count":1},{"year":2017,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}