{"id":"https://openalex.org/W2773421688","doi":"https://doi.org/10.1109/wcsp.2017.8171154","title":"Utility function optimization based joint user association and content placement in heterogeneous networks","display_name":"Utility function optimization based joint user association and content placement in heterogeneous networks","publication_year":2017,"publication_date":"2017-10-01","ids":{"openalex":"https://openalex.org/W2773421688","doi":"https://doi.org/10.1109/wcsp.2017.8171154","mag":"2773421688"},"language":"en","primary_location":{"id":"doi:10.1109/wcsp.2017.8171154","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp.2017.8171154","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2017 9th International Conference on Wireless Communications and Signal Processing (WCSP)","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/A5100420460","display_name":"Hong Chen","orcid":"https://orcid.org/0000-0003-0879-5090"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Hong Chen","raw_affiliation_strings":["Chongqing University of Posts and Telecommunications, Chongqing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Chongqing University of Posts and Telecommunications, Chongqing, P. R. China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5084338675","display_name":"Qianbin Chen","orcid":"https://orcid.org/0000-0001-6868-6860"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qianbin Chen","raw_affiliation_strings":["Chongqing University of Posts and Telecommunications, Chongqing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Chongqing University of Posts and Telecommunications, Chongqing, P. R. China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5051328733","display_name":"Rong Chai","orcid":"https://orcid.org/0000-0002-0957-7792"},"institutions":[{"id":"https://openalex.org/I10535382","display_name":"Chongqing University of Posts and Telecommunications","ror":"https://ror.org/03dgaqz26","country_code":"CN","type":"education","lineage":["https://openalex.org/I10535382"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Rong Chai","raw_affiliation_strings":["Chongqing University of Posts and Telecommunications, Chongqing, P. R. China"],"affiliations":[{"raw_affiliation_string":"Chongqing University of Posts and Telecommunications, Chongqing, P. R. China","institution_ids":["https://openalex.org/I10535382"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5081114487","display_name":"Dongmei Zhao","orcid":"https://orcid.org/0000-0002-7949-2989"},"institutions":[{"id":"https://openalex.org/I98251732","display_name":"McMaster University","ror":"https://ror.org/02fa3aq29","country_code":"CA","type":"education","lineage":["https://openalex.org/I98251732"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Dongmei Zhao","raw_affiliation_strings":["McMaster University, Hamilton, ON, Canada"],"affiliations":[{"raw_affiliation_string":"McMaster University, Hamilton, ON, Canada","institution_ids":["https://openalex.org/I98251732"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5100420460"],"corresponding_institution_ids":["https://openalex.org/I10535382"],"apc_list":null,"apc_paid":null,"fwci":0.6216,"has_fulltext":false,"cited_by_count":6,"citation_normalized_percentile":{"value":0.73639913,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"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":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":0.9817000031471252,"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/T12238","display_name":"Green IT and Sustainability","score":0.9555000066757202,"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/backhaul","display_name":"Backhaul (telecommunications)","score":0.8168420791625977},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.8119337558746338},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7990487813949585},{"id":"https://openalex.org/keywords/optimization-problem","display_name":"Optimization problem","score":0.7004791498184204},{"id":"https://openalex.org/keywords/lagrangian-relaxation","display_name":"Lagrangian relaxation","score":0.5130833387374878},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.4963143467903137},{"id":"https://openalex.org/keywords/convex-optimization","display_name":"Convex optimization","score":0.46569666266441345},{"id":"https://openalex.org/keywords/heterogeneous-network","display_name":"Heterogeneous network","score":0.42591091990470886},{"id":"https://openalex.org/keywords/lagrange-multiplier","display_name":"Lagrange multiplier","score":0.4237535297870636},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3902023732662201},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.24508625268936157},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.2103850245475769},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.19713637232780457},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.17586255073547363},{"id":"https://openalex.org/keywords/regular-polygon","display_name":"Regular polygon","score":0.163457453250885},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.07994827628135681}],"concepts":[{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.8168420791625977},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.8119337558746338},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7990487813949585},{"id":"https://openalex.org/C137836250","wikidata":"https://www.wikidata.org/wiki/Q984063","display_name":"Optimization problem","level":2,"score":0.7004791498184204},{"id":"https://openalex.org/C91765299","wikidata":"https://www.wikidata.org/wiki/Q3424292","display_name":"Lagrangian relaxation","level":2,"score":0.5130833387374878},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4963143467903137},{"id":"https://openalex.org/C157972887","wikidata":"https://www.wikidata.org/wiki/Q463359","display_name":"Convex optimization","level":3,"score":0.46569666266441345},{"id":"https://openalex.org/C158207573","wikidata":"https://www.wikidata.org/wiki/Q5747224","display_name":"Heterogeneous network","level":4,"score":0.42591091990470886},{"id":"https://openalex.org/C73684929","wikidata":"https://www.wikidata.org/wiki/Q598870","display_name":"Lagrange multiplier","level":2,"score":0.4237535297870636},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3902023732662201},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.24508625268936157},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2103850245475769},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.19713637232780457},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.17586255073547363},{"id":"https://openalex.org/C112680207","wikidata":"https://www.wikidata.org/wiki/Q714886","display_name":"Regular polygon","level":2,"score":0.163457453250885},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.07994827628135681},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.0},{"id":"https://openalex.org/C2524010","wikidata":"https://www.wikidata.org/wiki/Q8087","display_name":"Geometry","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcsp.2017.8171154","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcsp.2017.8171154","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2017 9th International Conference on Wireless Communications and Signal Processing (WCSP)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.6399999856948853,"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9"}],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":14,"referenced_works":["https://openalex.org/W1525294822","https://openalex.org/W2015208025","https://openalex.org/W2023146760","https://openalex.org/W2051773775","https://openalex.org/W2137254586","https://openalex.org/W2280358752","https://openalex.org/W2521531759","https://openalex.org/W2559537540","https://openalex.org/W2578743652","https://openalex.org/W2584056816","https://openalex.org/W2585576716","https://openalex.org/W2962831932","https://openalex.org/W2963969622","https://openalex.org/W4254313632"],"related_works":["https://openalex.org/W2002102264","https://openalex.org/W4237964977","https://openalex.org/W1996993548","https://openalex.org/W4285149922","https://openalex.org/W3032916910","https://openalex.org/W1994968474","https://openalex.org/W1511485829","https://openalex.org/W2981882443","https://openalex.org/W4312837919","https://openalex.org/W2172245743"],"abstract_inverted_index":{"The":[0],"rapid":[1],"growth":[2],"of":[3,36,89,160,169],"traffic":[4],"demands":[5],"has":[6],"posed":[7],"challenges":[8],"and":[9,18,54,71,93,97,103,149,153],"difficulties":[10],"on":[11],"both":[12],"the":[13,19,34,50,65,81,86,94,99,115,136,156,167,170],"radio":[14],"access":[15],"networks":[16,62],"(RANs)":[17],"backhaul":[20],"links.":[21],"To":[22],"stress":[23],"these":[24],"problems,":[25],"caching":[26,30,72,95],"technology,":[27],"more":[28],"specifically,":[29],"user":[31,52,68,90,101],"contents":[32],"at":[33],"infrastructures":[35],"different":[37],"RANs":[38],"is":[39,119],"proposed":[40,171],"as":[41,85,108],"an":[42],"effective":[43],"approach.":[44],"In":[45],"this":[46],"paper,":[47],"we":[48,74,134],"consider":[49],"joint":[51,82,100],"association":[53,102],"cache":[55,104],"content":[56,105],"placement":[57,106],"problem":[58,107,118,124,139],"in":[59],"cache-enabled":[60],"heterogeneous":[61],"(HetNets).":[63],"Stressing":[64],"tradeoff":[66],"between":[67],"download":[69,91],"delay":[70,92],"cost,":[73],"define":[75],"a":[76,109,120],"utility":[77,111],"function":[78],"which":[79,125],"characterizes":[80],"network":[83,110],"performance":[84],"weighted":[87],"sum":[88],"cost":[96],"formulate":[98],"optimization":[112,117,123,132,138],"problem.":[113],"As":[114],"formulated":[116],"nonlinear":[121],"integer":[122],"cannot":[126],"be":[127],"solved":[128],"conveniently":[129],"using":[130],"traditional":[131],"tools,":[133],"transform":[135],"original":[137],"equivalently":[140],"into":[141],"three":[142],"convex":[143],"subproblems":[144,157],"by":[145,158],"applying":[146],"McCormick":[147],"envelopes":[148],"Lagrange":[150],"partial":[151],"relaxation,":[152],"then":[154],"solve":[155],"means":[159],"Kuhn-Munkres":[161],"(K-M)":[162],"algorithm.":[163,172],"Simulation":[164],"results":[165],"demonstrate":[166],"effectiveness":[168]},"counts_by_year":[{"year":2023,"cited_by_count":2},{"year":2021,"cited_by_count":1},{"year":2019,"cited_by_count":1},{"year":2018,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}