{"id":"https://openalex.org/W4407361645","doi":"https://doi.org/10.1109/tcomm.2025.3540963","title":"Random Caching Strategy Based on Scalable Video Coding: Content Placement and Delivery in Multi-Tier Heterogeneous Networks","display_name":"Random Caching Strategy Based on Scalable Video Coding: Content Placement and Delivery in Multi-Tier Heterogeneous Networks","publication_year":2025,"publication_date":"2025-02-11","ids":{"openalex":"https://openalex.org/W4407361645","doi":"https://doi.org/10.1109/tcomm.2025.3540963"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2025.3540963","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2025.3540963","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":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5057094640","display_name":"Xuewei Zhang","orcid":"https://orcid.org/0000-0002-3078-8850"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xuewei Zhang","raw_affiliation_strings":["School of Communications and Information Engineering, Xi&#x2019;an University of Posts and Telecommunications (XUPT), Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0002-3078-8850","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi&#x2019;an University of Posts and Telecommunications (XUPT), Xi&#x2019;an, China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5043282231","display_name":"Yuan Ren","orcid":"https://orcid.org/0000-0003-2520-8388"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuan Ren","raw_affiliation_strings":["School of Communications and Information Engineering, Xi&#x2019;an University of Posts and Telecommunications (XUPT), Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0003-2520-8388","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi&#x2019;an University of Posts and Telecommunications (XUPT), Xi&#x2019;an, China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025530726","display_name":"Junxuan Wang","orcid":"https://orcid.org/0000-0002-5386-9012"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Junxuan Wang","raw_affiliation_strings":["School of Communications and Information Engineering, Xi&#x2019;an University of Posts and Telecommunications (XUPT), Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0002-5386-9012","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi&#x2019;an University of Posts and Telecommunications (XUPT), Xi&#x2019;an, China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5085386121","display_name":"Fan Jiang","orcid":"https://orcid.org/0000-0002-8968-5178"},"institutions":[{"id":"https://openalex.org/I4210136859","display_name":"Xi\u2019an University of Posts and Telecommunications","ror":"https://ror.org/04jn0td46","country_code":"CN","type":"education","lineage":["https://openalex.org/I4210136859"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Fan Jiang","raw_affiliation_strings":["School of Communications and Information Engineering, Xi&#x2019;an University of Posts and Telecommunications (XUPT), Xi&#x2019;an, China"],"raw_orcid":"https://orcid.org/0000-0002-8968-5178","affiliations":[{"raw_affiliation_string":"School of Communications and Information Engineering, Xi&#x2019;an University of Posts and Telecommunications (XUPT), Xi&#x2019;an, China","institution_ids":["https://openalex.org/I4210136859"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101544825","display_name":"Wei Ni","orcid":"https://orcid.org/0000-0002-4933-594X"},"institutions":[{"id":"https://openalex.org/I4210101388","display_name":"Health Sciences and Nutrition","ror":"https://ror.org/0152bt112","country_code":"AU","type":"facility","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I4210101388","https://openalex.org/I4387156119"]},{"id":"https://openalex.org/I42894916","display_name":"Data61","ror":"https://ror.org/03q397159","country_code":"AU","type":"other","lineage":["https://openalex.org/I1292875679","https://openalex.org/I2801453606","https://openalex.org/I42894916","https://openalex.org/I4387156119"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Wei Ni","raw_affiliation_strings":["Data61, Commonwealth Scientific and Industrial Research, Sydney, Australia","Data61, Commonwealth Scientific and Industrial Research, Sydney, NSW, Australia"],"raw_orcid":"https://orcid.org/0000-0002-4933-594X","affiliations":[{"raw_affiliation_string":"Data61, Commonwealth Scientific and Industrial Research, Sydney, Australia","institution_ids":["https://openalex.org/I4210101388"]},{"raw_affiliation_string":"Data61, Commonwealth Scientific and Industrial Research, Sydney, NSW, Australia","institution_ids":["https://openalex.org/I4210101388","https://openalex.org/I42894916"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5086268677","display_name":"Abbas Jamalipour","orcid":"https://orcid.org/0000-0002-1807-7220"},"institutions":[{"id":"https://openalex.org/I129604602","display_name":"The University of Sydney","ror":"https://ror.org/0384j8v12","country_code":"AU","type":"education","lineage":["https://openalex.org/I129604602"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"Abbas Jamalipour","raw_affiliation_strings":["School of Electrical and Computer Engineering, The University of Sydney, Sydney, NSW, Australia","School of Electrical and Computer Engineering, University of Sydney, Sydney, NSW, Australia"],"raw_orcid":"https://orcid.org/0000-0002-1807-7220","affiliations":[{"raw_affiliation_string":"School of Electrical and Computer Engineering, The University of Sydney, Sydney, NSW, Australia","institution_ids":["https://openalex.org/I129604602"]},{"raw_affiliation_string":"School of Electrical and Computer Engineering, University of Sydney, Sydney, NSW, Australia","institution_ids":["https://openalex.org/I129604602"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.8024,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.89772403,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":95,"max":98},"biblio":{"volume":"73","issue":"8","first_page":"6185","last_page":"6199"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9987999796867371,"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":0.9987999796867371,"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":0.9846000075340271,"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/T10627","display_name":"Advanced Image and Video Retrieval Techniques","score":0.9162999987602234,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.734384298324585},{"id":"https://openalex.org/keywords/scalability","display_name":"Scalability","score":0.6171122789382935},{"id":"https://openalex.org/keywords/content-delivery","display_name":"Content delivery","score":0.5742963552474976},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.5620023012161255},{"id":"https://openalex.org/keywords/scalable-video-coding","display_name":"Scalable Video Coding","score":0.5100070238113403},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4786014258861542},{"id":"https://openalex.org/keywords/linear-network-coding","display_name":"Linear network coding","score":0.45845097303390503},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.3570922911167145}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.734384298324585},{"id":"https://openalex.org/C48044578","wikidata":"https://www.wikidata.org/wiki/Q727490","display_name":"Scalability","level":2,"score":0.6171122789382935},{"id":"https://openalex.org/C2986847828","wikidata":"https://www.wikidata.org/wiki/Q269415","display_name":"Content delivery","level":2,"score":0.5742963552474976},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.5620023012161255},{"id":"https://openalex.org/C133529210","wikidata":"https://www.wikidata.org/wiki/Q1076113","display_name":"Scalable Video Coding","level":3,"score":0.5100070238113403},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4786014258861542},{"id":"https://openalex.org/C138293262","wikidata":"https://www.wikidata.org/wiki/Q1089578","display_name":"Linear network coding","level":3,"score":0.45845097303390503},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3570922911167145},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.0},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.0},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcomm.2025.3540963","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2025.3540963","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"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G241521611","display_name":null,"funder_award_id":"62201456","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6415290847","display_name":"\u96fe\u65e0\u7ebf\u63a5\u5165\u7f51\u7edc\u4e2d\u7684\u5185\u5bb9\u7f13\u5b58\u4e0e\u5206\u53d1\u7406\u8bba\u7814\u7a76","funder_award_id":"62071377","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6418305126","display_name":null,"funder_award_id":"2023-JC-YB-514","funder_id":"https://openalex.org/F4320324173","funder_display_name":"Natural Science Foundation of Shaanxi Province"},{"id":"https://openalex.org/G7414828622","display_name":null,"funder_award_id":"62101442","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"},{"id":"https://openalex.org/F4320324173","display_name":"Natural Science Foundation of Shaanxi Province","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":56,"referenced_works":["https://openalex.org/W631335369","https://openalex.org/W1991620090","https://openalex.org/W2084208304","https://openalex.org/W2112053513","https://openalex.org/W2162841150","https://openalex.org/W2170526793","https://openalex.org/W2213621529","https://openalex.org/W2243883016","https://openalex.org/W2271618010","https://openalex.org/W2294056757","https://openalex.org/W2336784746","https://openalex.org/W2435503387","https://openalex.org/W2522961195","https://openalex.org/W2604281498","https://openalex.org/W2613292045","https://openalex.org/W2793571972","https://openalex.org/W2795147977","https://openalex.org/W2808726992","https://openalex.org/W2809228156","https://openalex.org/W2864324236","https://openalex.org/W2908992891","https://openalex.org/W2915013648","https://openalex.org/W2942054295","https://openalex.org/W2946371207","https://openalex.org/W2956416002","https://openalex.org/W2963050595","https://openalex.org/W2963074449","https://openalex.org/W2963611429","https://openalex.org/W2969372512","https://openalex.org/W2999263473","https://openalex.org/W3004184758","https://openalex.org/W3009889758","https://openalex.org/W3013899205","https://openalex.org/W3034791083","https://openalex.org/W3035928065","https://openalex.org/W3039183151","https://openalex.org/W3046332971","https://openalex.org/W3046792153","https://openalex.org/W3080796260","https://openalex.org/W3111674505","https://openalex.org/W3117704303","https://openalex.org/W3161603475","https://openalex.org/W3176065809","https://openalex.org/W3208501388","https://openalex.org/W3212948368","https://openalex.org/W3216191601","https://openalex.org/W4205108433","https://openalex.org/W4205923567","https://openalex.org/W4210639298","https://openalex.org/W4226215061","https://openalex.org/W4226343006","https://openalex.org/W4226403788","https://openalex.org/W4285242833","https://openalex.org/W4295308251","https://openalex.org/W4360930597","https://openalex.org/W4366678308"],"related_works":["https://openalex.org/W2212571888","https://openalex.org/W2389214306","https://openalex.org/W2139379087","https://openalex.org/W2965083567","https://openalex.org/W2156028128","https://openalex.org/W2139278448","https://openalex.org/W2096875370","https://openalex.org/W2020337320","https://openalex.org/W2023819937","https://openalex.org/W2378768021"],"abstract_inverted_index":{"This":[0],"paper":[1],"proposes":[2],"a":[3,123],"new":[4,44],"joint":[5],"random":[6,124],"caching":[7,29,125,153,158],"and":[8,26,60,78,106,144,159],"hierarchical":[9],"transmission":[10,48,57,61,100],"scheme":[11],"for":[12,46],"delivering":[13],"multimedia":[14,65],"content":[15],"in":[16,80],"cache-assisted":[17],"heterogeneous":[18],"networks.":[19],"We":[20,87],"use":[21],"scalable":[22],"video":[23],"coding":[24],"(SVC)":[25],"wireless":[27],"edge":[28],"to":[30,35,39,74,83,115,155],"offer":[31],"personalized":[32],"video-watching":[33],"services":[34],"end":[36],"users.":[37],"Resorting":[38],"stochastic":[40],"geometry,":[41],"we":[42],"derive":[43],"expressions":[45],"successful":[47],"probabilities":[49],"(STPs).":[50],"Using":[51],"the":[52,55,76,90,110,117,130,133,137,146,150,156,160],"derived":[53,134],"STPs,":[54,135],"achievable":[56],"rates":[58],"(ATRs)":[59],"delay":[62,97,101],"experienced":[63],"by":[64],"users":[66],"are":[67],"obtained.":[68],"The":[69],"Gaussian-Chebyshev":[70,142],"quadrature":[71],"is":[72,104],"employed":[73],"approximate":[75],"STPs":[77],"ATRs":[79],"closed":[81],"form":[82],"improve":[84],"mathematical":[85],"tractability.":[86],"also":[88],"attain":[89],"user":[91],"satisfaction":[92],"index":[93],"(USI)":[94],"concerning":[95],"user\u2019s":[96],"experience.":[98],"A":[99],"minimization":[102],"problem":[103],"formulated":[105],"solved":[107],"efficiently":[108],"using":[109],"standard":[111],"gradient":[112],"projection":[113],"approach":[114],"determine":[116],"optimal":[118],"layer":[119],"placement":[120],"design":[121,154],"under":[122],"criterion.":[126],"Simulation":[127],"results":[128],"confirm":[129],"correctness":[131],"of":[132,141,149],"show":[136],"negligible":[138],"approximation":[139],"loss":[140],"quadratures,":[143],"manifest":[145],"performance":[147],"superiority":[148],"devised":[151],"SVC-based":[152],"energy-optimal":[157],"non-caching":[161],"approach.":[162]},"counts_by_year":[{"year":2026,"cited_by_count":2},{"year":2025,"cited_by_count":2}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}
