{"id":"https://openalex.org/W2909444676","doi":"https://doi.org/10.1109/tmc.2019.2893917","title":"Cooperative Caching for Multiple Bitrate Videos in Small Cell Edges","display_name":"Cooperative Caching for Multiple Bitrate Videos in Small Cell Edges","publication_year":2019,"publication_date":"2019-01-18","ids":{"openalex":"https://openalex.org/W2909444676","doi":"https://doi.org/10.1109/tmc.2019.2893917","mag":"2909444676"},"language":"en","primary_location":{"id":"doi:10.1109/tmc.2019.2893917","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmc.2019.2893917","pdf_url":null,"source":{"id":"https://openalex.org/S69141925","display_name":"IEEE Transactions on Mobile Computing","issn_l":"1536-1233","issn":["1536-1233","1558-0660","2161-9875"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer 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 Mobile Computing","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/A5017137055","display_name":"Zhihao Qu","orcid":"https://orcid.org/0000-0001-7538-1985"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":true,"raw_author_name":"Zhihao Qu","raw_affiliation_strings":["National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087746903","display_name":"Baoliu Ye","orcid":"https://orcid.org/0000-0003-1065-449X"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Baoliu Ye","raw_affiliation_strings":["National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0003-1065-449X","affiliations":[{"raw_affiliation_string":"National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5000882226","display_name":"Bin Tang","orcid":"https://orcid.org/0000-0002-4577-8882"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Bin Tang","raw_affiliation_strings":["National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China"],"raw_orcid":"https://orcid.org/0000-0002-4577-8882","affiliations":[{"raw_affiliation_string":"National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043464306","display_name":"Song Guo","orcid":"https://orcid.org/0000-0001-9831-2202"},"institutions":[{"id":"https://openalex.org/I14243506","display_name":"Hong Kong Polytechnic University","ror":"https://ror.org/0030zas98","country_code":"HK","type":"education","lineage":["https://openalex.org/I14243506"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Song Guo","raw_affiliation_strings":["Department of Computing, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR"],"raw_orcid":"https://orcid.org/0000-0001-9831-2202","affiliations":[{"raw_affiliation_string":"Department of Computing, The Hong Kong Polytechnic University, Kowloon, Hong Kong SAR","institution_ids":["https://openalex.org/I14243506"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043533769","display_name":"Sanglu Lu","orcid":"https://orcid.org/0000-0003-1467-4519"},"institutions":[{"id":"https://openalex.org/I881766915","display_name":"Nanjing University","ror":"https://ror.org/01rxvg760","country_code":"CN","type":"education","lineage":["https://openalex.org/I881766915"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Sanglu Lu","raw_affiliation_strings":["National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"National Key Laboratory for Novel Software Technology, Nanjing University, Nanjing, China","institution_ids":["https://openalex.org/I881766915"]}]},{"author_position":"last","author":{"id":null,"display_name":"Weihua Zhuang","orcid":"https://orcid.org/0000-0001-9024-3863"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Weihua Zhuang","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Canada"],"raw_orcid":"https://orcid.org/0000-0001-9024-3863","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, Canada","institution_ids":["https://openalex.org/I151746483"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5017137055"],"corresponding_institution_ids":["https://openalex.org/I881766915"],"apc_list":null,"apc_paid":null,"fwci":6.1339,"has_fulltext":false,"cited_by_count":52,"citation_normalized_percentile":{"value":0.96626747,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"19","issue":"2","first_page":"288","last_page":"299"},"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/T11165","display_name":"Image and Video Quality Assessment","score":0.9901000261306763,"subfield":{"id":"https://openalex.org/subfields/1707","display_name":"Computer Vision and Pattern Recognition"},"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/T10742","display_name":"Peer-to-Peer Network Technologies","score":0.9828000068664551,"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/computer-science","display_name":"Computer science","score":0.867484450340271},{"id":"https://openalex.org/keywords/server","display_name":"Server","score":0.74201500415802},{"id":"https://openalex.org/keywords/quality-of-experience","display_name":"Quality of experience","score":0.7192517518997192},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.5084534883499146},{"id":"https://openalex.org/keywords/mobile-device","display_name":"Mobile device","score":0.48141881823539734},{"id":"https://openalex.org/keywords/enhanced-data-rates-for-gsm-evolution","display_name":"Enhanced Data Rates for GSM Evolution","score":0.4703517258167267},{"id":"https://openalex.org/keywords/constant-bitrate","display_name":"Constant bitrate","score":0.4565720856189728},{"id":"https://openalex.org/keywords/mobile-edge-computing","display_name":"Mobile edge computing","score":0.4376913607120514},{"id":"https://openalex.org/keywords/software-deployment","display_name":"Software deployment","score":0.43752095103263855},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.43247509002685547},{"id":"https://openalex.org/keywords/variable-bitrate","display_name":"Variable bitrate","score":0.2751316428184509},{"id":"https://openalex.org/keywords/bit-rate","display_name":"Bit rate","score":0.18787407875061035},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.1478029191493988},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.11303919553756714}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.867484450340271},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.74201500415802},{"id":"https://openalex.org/C2779333187","wikidata":"https://www.wikidata.org/wiki/Q3132648","display_name":"Quality of experience","level":3,"score":0.7192517518997192},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.5084534883499146},{"id":"https://openalex.org/C186967261","wikidata":"https://www.wikidata.org/wiki/Q5082128","display_name":"Mobile device","level":2,"score":0.48141881823539734},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.4703517258167267},{"id":"https://openalex.org/C34339180","wikidata":"https://www.wikidata.org/wiki/Q1325924","display_name":"Constant bitrate","level":4,"score":0.4565720856189728},{"id":"https://openalex.org/C2776061582","wikidata":"https://www.wikidata.org/wiki/Q25325231","display_name":"Mobile edge computing","level":3,"score":0.4376913607120514},{"id":"https://openalex.org/C105339364","wikidata":"https://www.wikidata.org/wiki/Q2297740","display_name":"Software deployment","level":2,"score":0.43752095103263855},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.43247509002685547},{"id":"https://openalex.org/C57667952","wikidata":"https://www.wikidata.org/wiki/Q1154443","display_name":"Variable bitrate","level":3,"score":0.2751316428184509},{"id":"https://openalex.org/C2987812609","wikidata":"https://www.wikidata.org/wiki/Q194158","display_name":"Bit rate","level":2,"score":0.18787407875061035},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.1478029191493988},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.11303919553756714},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tmc.2019.2893917","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmc.2019.2893917","pdf_url":null,"source":{"id":"https://openalex.org/S69141925","display_name":"IEEE Transactions on Mobile Computing","issn_l":"1536-1233","issn":["1536-1233","1558-0660","2161-9875"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310320439","host_organization_name":"IEEE Computer Society","host_organization_lineage":["https://openalex.org/P4310320439","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Computer 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 Mobile Computing","raw_type":"journal-article"},{"id":"pmh:oai:repository.hkust.edu.hk:1783.1-130391","is_oa":false,"landing_page_url":"http://gateway.isiknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=LinksAMR&SrcApp=PARTNER_APP&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000508372700004","pdf_url":null,"source":{"id":"https://openalex.org/S4306401796","display_name":"Rare & Special e-Zone (The Hong Kong University of Science and Technology)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I200769079","host_organization_name":"Hong Kong University of Science and Technology","host_organization_lineage":["https://openalex.org/I200769079"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.4399999976158142,"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9"}],"awards":[{"id":"https://openalex.org/G2475758149","display_name":"\u57fa\u4e8e\u8fb9\u7f18\u8ba1\u7b97\u7684\u4e91\u7aef\u878d\u5408\u7406\u8bba\u65b9\u6cd5\u4e0e\u5173\u952e\u6280\u672f\u7814\u7a76","funder_award_id":"61832005","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3287540256","display_name":"\u7ed3\u5408\u4fe1\u9053\u7f16\u7801\u7684\u4f4e\u5f00\u9500\u7f51\u7edc\u7f16\u7801\u673a\u5236\u7814\u7a76","funder_award_id":"61501221","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G449966330","display_name":"\u9762\u5411\u5206\u5e03\u5f0f\u8ba1\u7b97\u7684\u7f16\u7801\u7406\u8bba\u53ca\u5e94\u7528\u6280\u672f\u7814\u7a76","funder_award_id":"61872171","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7111805306","display_name":"\u9762\u5411\u8fb9\u7f18\u667a\u80fd\u7684\u8d44\u6e90\u914d\u7f6e\u4e0e\u90e8\u7f72\u4f18\u5316\u5173\u952e\u6280\u672f\u7814\u7a76","funder_award_id":"61872310","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G7974858053","display_name":null,"funder_award_id":"BK20150588","funder_id":"https://openalex.org/F4320322769","funder_display_name":"Natural Science Foundation of Jiangsu Province"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320322769","display_name":"Natural Science Foundation of Jiangsu Province","ror":"https://ror.org/01h0zpd94"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":52,"referenced_works":["https://openalex.org/W103215147","https://openalex.org/W1537926232","https://openalex.org/W1970200030","https://openalex.org/W1972738071","https://openalex.org/W1976676487","https://openalex.org/W1976944900","https://openalex.org/W1986570368","https://openalex.org/W1986697120","https://openalex.org/W1988538402","https://openalex.org/W1988834815","https://openalex.org/W2009708702","https://openalex.org/W2013628864","https://openalex.org/W2019054034","https://openalex.org/W2032122047","https://openalex.org/W2036861524","https://openalex.org/W2037169571","https://openalex.org/W2039090559","https://openalex.org/W2039285093","https://openalex.org/W2051773775","https://openalex.org/W2057415916","https://openalex.org/W2070153724","https://openalex.org/W2096220631","https://openalex.org/W2118519969","https://openalex.org/W2132651631","https://openalex.org/W2150453038","https://openalex.org/W2157394357","https://openalex.org/W2167407752","https://openalex.org/W2181841214","https://openalex.org/W2262385276","https://openalex.org/W2274894313","https://openalex.org/W2297969905","https://openalex.org/W2415651606","https://openalex.org/W2426330860","https://openalex.org/W2435503387","https://openalex.org/W2478542382","https://openalex.org/W2489913142","https://openalex.org/W2519564973","https://openalex.org/W2565419328","https://openalex.org/W2601166407","https://openalex.org/W2603810864","https://openalex.org/W2615459164","https://openalex.org/W2760381851","https://openalex.org/W2791224295","https://openalex.org/W2806803384","https://openalex.org/W2963155944","https://openalex.org/W2963308492","https://openalex.org/W2963328961","https://openalex.org/W2964011116","https://openalex.org/W3123692654","https://openalex.org/W3160502863","https://openalex.org/W6604197945","https://openalex.org/W6685981902"],"related_works":["https://openalex.org/W2028643315","https://openalex.org/W3139051647","https://openalex.org/W2902693277","https://openalex.org/W2311941254","https://openalex.org/W2280226702","https://openalex.org/W2035288686","https://openalex.org/W3022147734","https://openalex.org/W2054455015","https://openalex.org/W2625986414","https://openalex.org/W2906364736"],"abstract_inverted_index":{"Caching":[0],"popular":[1],"videos":[2,78],"at":[3,62],"mobile":[4,17],"edge":[5],"servers":[6],"(MESs)":[7],"has":[8],"been":[9],"confirmed":[10],"as":[11,96],"a":[12,136,142,158],"promising":[13],"method":[14],"to":[15,26,104,154],"improve":[16],"users":[18],"(MUs)":[19],"perceived":[20,89,108],"quality":[21],"of":[22,66,166,181],"experience":[23],"(QoE)":[24],"and":[25,83,91,118,128,188],"alleviate":[27],"the":[28,33,49,85,106,112,179],"server":[29],"load.":[30],"However,":[31],"with":[32],"multiple":[34,113],"bitrate":[35,77,114],"encoding":[36],"techniques":[37],"prevalently":[38],"employed":[39],"in":[40,100],"modern":[41],"streaming":[42],"services,":[43],"caching":[44,55,74,116],"deployment":[45],"is":[46,122],"challenging":[47],"for":[48,59,73,124,157],"following":[50],"three":[51],"facts:":[52],"(1)":[53],"cooperative":[54],"should":[56],"be":[57],"explored":[58],"MUs":[60],"located":[61],"overlapped":[63],"coverage":[64],"areas":[65],"MESs;":[67],"(2)":[68],"there":[69],"exists":[70],"tradeoff":[71],"consideration":[72],"either":[75],"high":[76,80],"or":[79],"diversity":[81],"videos;":[82],"(3)":[84],"relationship":[86],"between":[87],"MU":[88,92,107],"QoE":[90,97,131,144,160],"received":[93],"bitrate,":[94],"known":[95],"function,":[98,145,161],"varies":[99],"different":[101],"services.":[102],"Aiming":[103],"maximize":[105],"QoE,":[109],"we":[110,162],"formulate":[111],"video":[115],"problem,":[117],"prove":[119],"this":[120],"problem":[121],"NP-hard":[123],"any":[125],"given":[126],"positive":[127],"strictly":[129],"increasing":[130],"function.":[132],"We":[133,177],"then":[134],"propose":[135],"polynomial":[137],"complexity":[138],"algorithm":[139],"based":[140,169],"on":[141,170],"general":[143],"which":[146,171],"can":[147],"achieve":[148],"an":[149],"approximate":[150],"ratio":[151],"arbitrarily":[152],"close":[153],"1/2.":[155],"Specifically,":[156],"linear":[159],"explore":[163],"useful":[164],"property":[165],"optimal":[167],"solutions,":[168],"more":[172],"efficient":[173],"algorithms":[174],"are":[175],"proposed.":[176],"demonstrate":[178],"effectiveness":[180],"our":[182],"solutions":[183],"via":[184],"both":[185],"theoretical":[186],"analysis":[187],"extensive":[189],"simulations.":[190]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":11},{"year":2021,"cited_by_count":9},{"year":2020,"cited_by_count":12},{"year":2019,"cited_by_count":1}],"updated_date":"2026-06-06T09:05:17.133730","created_date":"2025-10-10T00:00:00"}