{"id":"https://openalex.org/W3105559639","doi":"https://doi.org/10.1109/tcomm.2020.3038392","title":"On the Fundamental Limits of Coded Caching Systems With Restricted Demand Types","display_name":"On the Fundamental Limits of Coded Caching Systems With Restricted Demand Types","publication_year":2020,"publication_date":"2020-11-17","ids":{"openalex":"https://openalex.org/W3105559639","doi":"https://doi.org/10.1109/tcomm.2020.3038392","mag":"3105559639"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2020.3038392","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2020.3038392","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://zenodo.org/record/4432350","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5025609529","display_name":"Shuo Shao","orcid":"https://orcid.org/0000-0003-2872-795X"},"institutions":[{"id":"https://openalex.org/I183067930","display_name":"Shanghai Jiao Tong University","ror":"https://ror.org/0220qvk04","country_code":"CN","type":"education","lineage":["https://openalex.org/I183067930"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shuo Shao","raw_affiliation_strings":["SEIEE, Shanghai Jiao Tong University, Shanghai, China"],"raw_orcid":"https://orcid.org/0000-0003-2872-795X","affiliations":[{"raw_affiliation_string":"SEIEE, Shanghai Jiao Tong University, Shanghai, China","institution_ids":["https://openalex.org/I183067930"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038872773","display_name":"Jes\u00fas G\u00f3mez-Vilardeb\u00f3","orcid":"https://orcid.org/0000-0002-3162-8058"},"institutions":[{"id":"https://openalex.org/I4210087295","display_name":"Centre Tecnologic de Telecomunicacions de Catalunya","ror":"https://ror.org/001cwea56","country_code":"ES","type":"nonprofit","lineage":["https://openalex.org/I4210087295","https://openalex.org/I4387153040"]}],"countries":["ES"],"is_corresponding":false,"raw_author_name":"Jesus Gomez-Vilardebo","raw_affiliation_strings":["Center Tecnol\u00f2gic de Telecomunicacions de Catalunya (CTTC/CERCA), Barcelona, Spain"],"raw_orcid":"https://orcid.org/0000-0002-3162-8058","affiliations":[{"raw_affiliation_string":"Center Tecnol\u00f2gic de Telecomunicacions de Catalunya (CTTC/CERCA), Barcelona, Spain","institution_ids":["https://openalex.org/I4210087295"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100323935","display_name":"Kai Zhang","orcid":"https://orcid.org/0000-0002-0876-430X"},"institutions":[{"id":"https://openalex.org/I91045830","display_name":"Texas A&M University","ror":"https://ror.org/01f5ytq51","country_code":"US","type":"education","lineage":["https://openalex.org/I91045830"]},{"id":"https://openalex.org/I919571938","display_name":"The University of Texas Health Science Center at Houston","ror":"https://ror.org/03gds6c39","country_code":"US","type":"education","lineage":["https://openalex.org/I919571938"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Kai Zhang","raw_affiliation_strings":["Texas A&M University, College Station, TX, USA","UTHealth School of Biomedical Informatics, Houston, TX, USA"],"raw_orcid":"https://orcid.org/0000-0002-0876-430X","affiliations":[{"raw_affiliation_string":"Texas A&M University, College Station, TX, USA","institution_ids":["https://openalex.org/I91045830"]},{"raw_affiliation_string":"UTHealth School of Biomedical Informatics, Houston, TX, USA","institution_ids":["https://openalex.org/I919571938"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100675045","display_name":"Chao Tian","orcid":"https://orcid.org/0000-0001-8752-6141"},"institutions":[{"id":"https://openalex.org/I91045830","display_name":"Texas A&M University","ror":"https://ror.org/01f5ytq51","country_code":"US","type":"education","lineage":["https://openalex.org/I91045830"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Chao Tian","raw_affiliation_strings":["Texas A&M University, College Station, TX, USA"],"raw_orcid":"https://orcid.org/0000-0001-8752-6141","affiliations":[{"raw_affiliation_string":"Texas A&M University, College Station, TX, USA","institution_ids":["https://openalex.org/I91045830"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":0.5532,"has_fulltext":true,"cited_by_count":7,"citation_normalized_percentile":{"value":0.72215865,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":97},"biblio":{"volume":"69","issue":"2","first_page":"863","last_page":"873"},"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":0.9966999888420105,"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":0.9850000143051147,"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":0.7889365553855896},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.6502529978752136},{"id":"https://openalex.org/keywords/focus","display_name":"Focus (optics)","score":0.5506767630577087},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.4440486431121826},{"id":"https://openalex.org/keywords/on-demand","display_name":"On demand","score":0.43257856369018555},{"id":"https://openalex.org/keywords/scheme","display_name":"Scheme (mathematics)","score":0.4271596074104309},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.41121822595596313},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09119710326194763}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7889365553855896},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.6502529978752136},{"id":"https://openalex.org/C192209626","wikidata":"https://www.wikidata.org/wiki/Q190909","display_name":"Focus (optics)","level":2,"score":0.5506767630577087},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.4440486431121826},{"id":"https://openalex.org/C2983523559","wikidata":"https://www.wikidata.org/wiki/Q410657","display_name":"On demand","level":2,"score":0.43257856369018555},{"id":"https://openalex.org/C77618280","wikidata":"https://www.wikidata.org/wiki/Q1155772","display_name":"Scheme (mathematics)","level":2,"score":0.4271596074104309},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.41121822595596313},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09119710326194763},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"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/C49774154","wikidata":"https://www.wikidata.org/wiki/Q131765","display_name":"Multimedia","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},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tcomm.2020.3038392","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2020.3038392","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:zenodo.org:4432350","is_oa":true,"landing_page_url":"https://zenodo.org/record/4432350","pdf_url":"https://zenodo.org/record/4432350","source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Transactions on Communications 1 - 1","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:oai:zenodo.org:4432350","is_oa":true,"landing_page_url":"https://zenodo.org/record/4432350","pdf_url":"https://zenodo.org/record/4432350","source":{"id":"https://openalex.org/S4306400562","display_name":"Zenodo (CERN European Organization for Nuclear Research)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I67311998","host_organization_name":"European Organization for Nuclear Research","host_organization_lineage":["https://openalex.org/I67311998"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Transactions on Communications 1 - 1","raw_type":"info:eu-repo/semantics/article"},"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.4399999976158142,"id":"https://metadata.un.org/sdg/16"}],"awards":[{"id":"https://openalex.org/G1494875087","display_name":"CIF: Small: Collaborative Research: A Software Toolbox for Computing and Exploring the Fundamental Limits of Information Systems","funder_award_id":"1816546","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G1946469901","display_name":null,"funder_award_id":"CCF- 18-32309","funder_id":"https://openalex.org/F4320306076","funder_display_name":"National Science Foundation"},{"id":"https://openalex.org/G2695936311","display_name":null,"funder_award_id":"19YF1424200","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3010659421","display_name":"\u9762\u5411\u591a\u76ee\u6807\u7fa4\u667a\u611f\u77e5\u7684\u4efb\u52a1\u5206\u914d\u7b97\u6cd5\u7814\u7a76","funder_award_id":"61872149","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8401394514","display_name":null,"funder_award_id":"61901261","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320306076","display_name":"National Science Foundation","ror":"https://ror.org/021nxhr62"},{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":true,"grobid_xml":true},"content_urls":{"pdf":"https://content.openalex.org/works/W3105559639.pdf","grobid_xml":"https://content.openalex.org/works/W3105559639.grobid-xml"},"referenced_works_count":23,"referenced_works":["https://openalex.org/W1979408141","https://openalex.org/W2106248279","https://openalex.org/W2216774299","https://openalex.org/W2482095914","https://openalex.org/W2513135894","https://openalex.org/W2527594325","https://openalex.org/W2547052808","https://openalex.org/W2616718009","https://openalex.org/W2777034101","https://openalex.org/W2786757013","https://openalex.org/W2799278985","https://openalex.org/W2807110653","https://openalex.org/W2883300382","https://openalex.org/W2889585362","https://openalex.org/W2963594337","https://openalex.org/W2975933913","https://openalex.org/W2976568847","https://openalex.org/W3005878822","https://openalex.org/W3024774239","https://openalex.org/W3103610239","https://openalex.org/W3106164725","https://openalex.org/W6768057473","https://openalex.org/W6777244217"],"related_works":["https://openalex.org/W2012531322","https://openalex.org/W1975289146","https://openalex.org/W2785900585","https://openalex.org/W2353730437","https://openalex.org/W2490303674","https://openalex.org/W2609066826","https://openalex.org/W2810752900","https://openalex.org/W2105887828","https://openalex.org/W3186538219","https://openalex.org/W2365677836"],"abstract_inverted_index":{"Caching":[0],"is":[1,84,152,188],"a":[2,32,115],"technique":[3],"to":[4,46,54,113,145],"reduce":[5],"the":[6,56,63,68,79,86,105,119,136,148,154],"communication":[7],"load":[8],"in":[9,31,100,104,156],"peak":[10],"hours":[11],"by":[12,27,125,164,179,200],"prefetching":[13],"contents":[14],"during":[15,97],"off-peak":[16],"hours.":[17],"An":[18],"information":[19,58],"theoretic":[20,59],"framework":[21],"for":[22,81],"coded":[23,64,88,123,170],"caching":[24,65,89,124,171],"was":[25,37],"introduced":[26],"Maddah-Ali":[28],"and":[29,141],"Niesen":[30],"recent":[33],"work,":[34],"where":[35,173],"it":[36],"shown":[38],"that":[39,85,196],"significant":[40],"improvement":[41],"can":[42,191],"be":[43,177],"obtained":[44],"compared":[45],"uncoded":[47],"caching.":[48],"Considerable":[49],"efforts":[50],"have":[51],"been":[52],"devoted":[53],"identify":[55],"precise":[57],"fundamental":[60,120],"limits":[61,121],"of":[62,70,78,118,122],"systems,":[66],"however":[67],"difficulty":[69,83],"this":[71,82,109],"task":[72],"has":[73],"also":[74],"become":[75],"clear.":[76],"One":[77],"reasons":[80],"original":[87],"setting":[90],"allows":[91],"all":[92,158],"possible":[93],"multiple":[94],"demand":[95,130,150],"types":[96],"delivery,":[98],"which":[99,157,190],"fact":[101],"introduces":[102],"tension":[103],"coding":[106,186],"strategy.":[107],"In":[108],"paper,":[110],"we":[111,167],"seek":[112],"develop":[114],"better":[116],"understanding":[117],"investigating":[126],"systems":[127,172],"with":[128],"certain":[129],"type":[131,151],"restrictions.":[132],"We":[133],"first":[134],"consider":[135],"canonical":[137],"three-user":[138],"three-file":[139],"system,":[140],"show":[142],"that,":[143],"contrary":[144],"popular":[146],"beliefs,":[147],"worst":[149],"not":[153,198],"one":[155,182],"three":[159],"files":[160],"are":[161,197],"requested.":[162],"Motivated":[163],"these":[165],"findings,":[166],"focus":[168],"on":[169],"every":[174],"file":[175],"must":[176],"requested":[178],"at":[180],"least":[181],"user.":[183],"A":[184],"novel":[185],"scheme":[187],"proposed,":[189],"provide":[192],"new":[193],"operating":[194],"points":[195],"covered":[199],"any":[201],"previously":[202],"known":[203],"schemes.":[204]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":1},{"year":2023,"cited_by_count":1},{"year":2022,"cited_by_count":2},{"year":2021,"cited_by_count":1}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-10-10T00:00:00"}