{"id":"https://openalex.org/W4416749561","doi":"https://doi.org/10.1109/jsac.2025.3638317","title":"Cache-Aided Variable-Length Coding With Perfect Privacy","display_name":"Cache-Aided Variable-Length Coding With Perfect Privacy","publication_year":2025,"publication_date":"2025-11-27","ids":{"openalex":"https://openalex.org/W4416749561","doi":"https://doi.org/10.1109/jsac.2025.3638317"},"language":null,"primary_location":{"id":"doi:10.1109/jsac.2025.3638317","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2025.3638317","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"is_oa":false,"is_in_doaj":false,"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 Journal on Selected Areas in Communications","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/A5068807935","display_name":"Amirreza Zamani","orcid":"https://orcid.org/0000-0001-9296-4939"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Amirreza Zamani","raw_affiliation_strings":["Division of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","Division of Information Science and Engineering, KTH Royal Institute of Technology, Sweden"],"raw_orcid":"https://orcid.org/0000-0001-9296-4939","affiliations":[{"raw_affiliation_string":"Division of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]},{"raw_affiliation_string":"Division of Information Science and Engineering, KTH Royal Institute of Technology, Sweden","institution_ids":["https://openalex.org/I86987016"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5041348422","display_name":"Mikael Skoglund","orcid":"https://orcid.org/0000-0002-7926-5081"},"institutions":[{"id":"https://openalex.org/I86987016","display_name":"KTH Royal Institute of Technology","ror":"https://ror.org/026vcq606","country_code":"SE","type":"education","lineage":["https://openalex.org/I86987016"]}],"countries":["SE"],"is_corresponding":false,"raw_author_name":"Mikael Skoglund","raw_affiliation_strings":["Division of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","Division of Information Science and Engineering, KTH Royal Institute of Technology, Sweden"],"raw_orcid":"https://orcid.org/0000-0002-7926-5081","affiliations":[{"raw_affiliation_string":"Division of Information Science and Engineering, KTH Royal Institute of Technology, Stockholm, Sweden","institution_ids":["https://openalex.org/I86987016"]},{"raw_affiliation_string":"Division of Information Science and Engineering, KTH Royal Institute of Technology, Sweden","institution_ids":["https://openalex.org/I86987016"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":1,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I86987016"],"apc_list":{"value":2645,"currency":"USD","value_usd":2645},"apc_paid":null,"fwci":0.5872,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.75115813,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"44","issue":null,"first_page":"2116","last_page":"2131"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.3564000129699707,"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":0.3564000129699707,"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/T10964","display_name":"Wireless Communication Security Techniques","score":0.1793999969959259,"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"}},{"id":"https://openalex.org/T11321","display_name":"Error Correcting Code Techniques","score":0.10379999876022339,"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/cache","display_name":"Cache","score":0.6514999866485596},{"id":"https://openalex.org/keywords/adversary","display_name":"Adversary","score":0.5357000231742859},{"id":"https://openalex.org/keywords/shared-secret","display_name":"Shared secret","score":0.4860000014305115},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.4657000005245209},{"id":"https://openalex.org/keywords/file-server","display_name":"File server","score":0.38999998569488525},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.376800000667572},{"id":"https://openalex.org/keywords/cpu-cache","display_name":"CPU cache","score":0.3709000051021576}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8762000203132629},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.6514999866485596},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5490000247955322},{"id":"https://openalex.org/C41065033","wikidata":"https://www.wikidata.org/wiki/Q2825412","display_name":"Adversary","level":2,"score":0.5357000231742859},{"id":"https://openalex.org/C184660509","wikidata":"https://www.wikidata.org/wiki/Q462624","display_name":"Shared secret","level":3,"score":0.4860000014305115},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.4657000005245209},{"id":"https://openalex.org/C4373008","wikidata":"https://www.wikidata.org/wiki/Q513349","display_name":"File server","level":2,"score":0.38999998569488525},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.376800000667572},{"id":"https://openalex.org/C189783530","wikidata":"https://www.wikidata.org/wiki/Q352090","display_name":"CPU cache","level":3,"score":0.3709000051021576},{"id":"https://openalex.org/C38652104","wikidata":"https://www.wikidata.org/wiki/Q3510521","display_name":"Computer security","level":1,"score":0.36250001192092896},{"id":"https://openalex.org/C99221444","wikidata":"https://www.wikidata.org/wiki/Q1532069","display_name":"Private information retrieval","level":2,"score":0.3564999997615814},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.3425999879837036},{"id":"https://openalex.org/C203062551","wikidata":"https://www.wikidata.org/wiki/Q201339","display_name":"Public-key cryptography","level":3,"score":0.30329999327659607},{"id":"https://openalex.org/C178489894","wikidata":"https://www.wikidata.org/wiki/Q8789","display_name":"Cryptography","level":2,"score":0.2994999885559082},{"id":"https://openalex.org/C123201435","wikidata":"https://www.wikidata.org/wiki/Q456632","display_name":"Information privacy","level":2,"score":0.27000001072883606},{"id":"https://openalex.org/C125411270","wikidata":"https://www.wikidata.org/wiki/Q18653","display_name":"Encoding (memory)","level":2,"score":0.2624000012874603},{"id":"https://openalex.org/C137822555","wikidata":"https://www.wikidata.org/wiki/Q2587068","display_name":"Information sensitivity","level":2,"score":0.25380000472068787}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jsac.2025.3638317","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2025.3638317","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"is_oa":false,"is_in_doaj":false,"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 Journal on Selected Areas in Communications","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G4287352547","display_name":"Communication-Efficient Decentralized Intelligence in 6G Systems","funder_award_id":"2024-06464","funder_id":"https://openalex.org/F4320322581","funder_display_name":"Vetenskapsr\u00e5det"}],"funders":[{"id":"https://openalex.org/F4320322581","display_name":"Vetenskapsr\u00e5det","ror":"https://ror.org/03zttf063"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":44,"referenced_works":["https://openalex.org/W200476714","https://openalex.org/W1565516259","https://openalex.org/W1873763122","https://openalex.org/W2027595342","https://openalex.org/W2040996859","https://openalex.org/W2043769961","https://openalex.org/W2071342505","https://openalex.org/W2079618300","https://openalex.org/W2106248279","https://openalex.org/W2109394932","https://openalex.org/W2141432745","https://openalex.org/W2161001052","https://openalex.org/W2261398996","https://openalex.org/W2269413506","https://openalex.org/W2512033079","https://openalex.org/W2527594325","https://openalex.org/W2611269208","https://openalex.org/W2725842974","https://openalex.org/W2734457061","https://openalex.org/W2740138032","https://openalex.org/W2962724786","https://openalex.org/W2963412800","https://openalex.org/W2963634943","https://openalex.org/W2964029778","https://openalex.org/W2967916697","https://openalex.org/W2990835654","https://openalex.org/W3095173930","https://openalex.org/W3108844855","https://openalex.org/W3121783531","https://openalex.org/W3123181209","https://openalex.org/W3124990156","https://openalex.org/W3127536994","https://openalex.org/W3182521736","https://openalex.org/W4382365054","https://openalex.org/W4386075159","https://openalex.org/W4387789705","https://openalex.org/W4389104629","https://openalex.org/W4390098162","https://openalex.org/W4390489169","https://openalex.org/W4390489177","https://openalex.org/W4392667139","https://openalex.org/W4393305415","https://openalex.org/W4401692572","https://openalex.org/W4406796111"],"related_works":[],"abstract_inverted_index":{"A":[0],"cache-aided":[1,183],"compression":[2,206],"problem":[3],"with":[4,82,176,207,286],"perfect":[5,148,189],"privacy":[6,149,190],"is":[7,25,89,112],"studied,":[8],"where":[9,32],"a":[10,15,29,38,83,106,198,237],"server":[11,24,48,102],"has":[12,35],"access":[13,36,93,104],"to":[14,37,72,91,94,105,113,146,154,171],"database":[16,175],"ofNfiles,":[17],"(Y1,":[18],"...,YN),":[19],"each":[20,33,78],"of":[21,41,56,174],"sizeFbits.":[22],"The":[23,98,110,131],"connected":[26],"toKusers":[27],"through":[28],"shared":[30,96,107,167],"link,":[31],"user":[34],"local":[39,161],"cache":[40,116],"sizeMFbits.":[42],"In":[43,211],"the":[44,47,50,61,67,73,95,101,115,119,123,147,166,172,177,188,231,244,248,266,273],"placement":[45],"phase,":[46],"fills":[49],"users\u2019":[51],"caches":[52],"without":[53],"prior":[54],"knowledge":[55],"their":[57,70],"future":[58],"demands,":[59],"while":[60,128],"delivery":[62,184],"phase":[63],"takes":[64],"place":[65],"after":[66],"users":[68,99],"send":[69],"demands":[71],"server.":[74],"We":[75,241],"assume":[76],"that":[77,122,203,243],"fileYiis":[79],"arbitrarily":[80],"correlated":[81],"private":[84,178],"attributeX,":[85],"and":[86,100,118,165,218,236,279],"an":[87,225,281,284],"adversary":[88],"assumed":[90],"have":[92,103],"link.":[97],"secret":[108,168],"keyW.":[109,169],"goal":[111],"design":[114],"contents":[117],"delivered":[120,163],"messageCsuch":[121],"average":[124],"length":[125],"ofCis":[126],"minimized,":[127],"satisfying:":[129],"i.":[130],"responseCdoes":[132],"not":[133,186],"disclose":[134],"any":[135],"information":[136,268],"aboutX,":[137],"i.e.,XandCare":[138],"statistically":[139],"independent":[140],"yieldingI(X;C)":[141],"=":[142],"0,":[143],"which":[144],"corresponds":[145],"constraint;":[150],"ii.":[151],"Useriis":[152],"able":[153],"decode":[155],"its":[156,160],"demand,Ydi,":[157],"by":[158,252],"using":[159,265],"cacheZi,":[162],"messageC,":[164],"Due":[170],"correlation":[173],"attribute,":[179],"existing":[180],"codes":[181],"for":[182],"do":[185],"fulfill":[187],"constraint.":[191],"Indeed,":[192],"in":[193,276],"this":[194],"work,":[195],"we":[196,213,223,260,271],"propose":[197,224],"lossless":[199],"variable-length":[200],"coding":[201,227,263],"scheme":[202,228,246],"combines":[204],"privacy-aware":[205],"coded":[208],"caching":[209],"techniques.":[210],"particular,":[212],"use":[214],"two-part":[215],"code":[216],"construction":[217],"Functional":[219,253],"Representation":[220,254],"Lemma.":[221,255],"Furthermore,":[222],"alternative":[226],"based":[229],"on":[230],"minimum":[232],"entropy":[233],"coupling":[234],"concept":[235],"greedy":[238],"entropy-based":[239],"algorithm.":[240],"show":[242],"proposed":[245,274],"improves":[247],"previous":[249],"results":[250],"obtained":[251],"Considering":[256],"two":[257],"special":[258],"cases":[259],"improve":[261],"both":[262],"schemes":[264,275],"common":[267],"concept.":[269],"Finally,":[270],"compare":[272],"numerical":[277],"examples":[278],"provide":[280],"application":[282],"considering":[283],"encoder":[285],"limited":[287],"buffer":[288],"size.":[289]},"counts_by_year":[{"year":2026,"cited_by_count":1}],"updated_date":"2026-08-21T09:56:20.448147","created_date":"2025-11-28T00:00:00"}