{"id":"https://openalex.org/W7161943079","doi":"https://doi.org/10.1109/tnsm.2026.3695712","title":"QoE-Aware Multi-Representation Caching in Heterogeneous LEO Satellite\u2013Edge Networks","display_name":"QoE-Aware Multi-Representation Caching in Heterogeneous LEO Satellite\u2013Edge Networks","publication_year":2026,"publication_date":"2026-01-01","ids":{"openalex":"https://openalex.org/W7161943079","doi":"https://doi.org/10.1109/tnsm.2026.3695712"},"language":null,"primary_location":{"id":"doi:10.1109/tnsm.2026.3695712","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tnsm.2026.3695712","pdf_url":null,"source":{"id":"https://openalex.org/S173527311","display_name":"IEEE Transactions on Network and Service Management","issn_l":"1932-4537","issn":["1932-4537","2373-7379"],"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 Transactions on Network and Service Management","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/A5122994785","display_name":"Ramiz Sharafat Rajput","orcid":null},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ramiz Sharafat Rajput","raw_affiliation_strings":["Anhui Key Laboratory on High Performance Computing, School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui, China"],"raw_orcid":"https://orcid.org/0009-0002-7633-1415","affiliations":[{"raw_affiliation_string":"Anhui Key Laboratory on High Performance Computing, School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5121538235","display_name":"Xiaohan Wu","orcid":null},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiaohan Wu","raw_affiliation_strings":["Anhui Key Laboratory on High Performance Computing, School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui, China"],"raw_orcid":"https://orcid.org/0009-0007-2961-7257","affiliations":[{"raw_affiliation_string":"Anhui Key Laboratory on High Performance Computing, School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5136670295","display_name":"Shihe Xu","orcid":"https://orcid.org/0000-0001-7253-2493"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shihe Xu","raw_affiliation_strings":["Anhui Key Laboratory on High Performance Computing, School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui, China"],"raw_orcid":"https://orcid.org/0000-0001-7253-2493","affiliations":[{"raw_affiliation_string":"Anhui Key Laboratory on High Performance Computing, School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100430876","display_name":"Xi Zhang","orcid":"https://orcid.org/0000-0003-3415-5345"},"institutions":[{"id":"https://openalex.org/I126520041","display_name":"University of Science and Technology of China","ror":"https://ror.org/04c4dkn09","country_code":"CN","type":"education","lineage":["https://openalex.org/I126520041","https://openalex.org/I19820366"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xinming Zhang","raw_affiliation_strings":["Anhui Key Laboratory on High Performance Computing, School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui, China"],"raw_orcid":"https://orcid.org/0000-0002-8136-6834","affiliations":[{"raw_affiliation_string":"Anhui Key Laboratory on High Performance Computing, School of Computer Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","institution_ids":["https://openalex.org/I126520041"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":0,"citation_normalized_percentile":{"value":0.81134834,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":null,"biblio":{"volume":"23","issue":null,"first_page":"4769","last_page":"4786"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.352400004863739,"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/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.352400004863739,"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/T12042","display_name":"Satellite Communication Systems","score":0.2578999996185303,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10273","display_name":"IoT and Edge/Fog Computing","score":0.0625,"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/intelligent-network","display_name":"Intelligent Network","score":0.3188999891281128},{"id":"https://openalex.org/keywords/heterogeneous-network","display_name":"Heterogeneous network","score":0.2921999990940094},{"id":"https://openalex.org/keywords/server","display_name":"Server","score":0.28780001401901245},{"id":"https://openalex.org/keywords/routing-protocol","display_name":"Routing protocol","score":0.273499995470047},{"id":"https://openalex.org/keywords/mobile-telephony","display_name":"Mobile telephony","score":0.2476000040769577}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8242999911308289},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6887000203132629},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.33090001344680786},{"id":"https://openalex.org/C51675839","wikidata":"https://www.wikidata.org/wiki/Q1665681","display_name":"Intelligent Network","level":2,"score":0.3188999891281128},{"id":"https://openalex.org/C158207573","wikidata":"https://www.wikidata.org/wiki/Q5747224","display_name":"Heterogeneous network","level":4,"score":0.2921999990940094},{"id":"https://openalex.org/C93996380","wikidata":"https://www.wikidata.org/wiki/Q44127","display_name":"Server","level":2,"score":0.28780001401901245},{"id":"https://openalex.org/C104954878","wikidata":"https://www.wikidata.org/wiki/Q1648707","display_name":"Routing protocol","level":3,"score":0.273499995470047},{"id":"https://openalex.org/C95491727","wikidata":"https://www.wikidata.org/wiki/Q992968","display_name":"Mobile telephony","level":3,"score":0.2476000040769577},{"id":"https://openalex.org/C2776257435","wikidata":"https://www.wikidata.org/wiki/Q1576430","display_name":"Bandwidth (computing)","level":2,"score":0.24719999730587006},{"id":"https://openalex.org/C110875604","wikidata":"https://www.wikidata.org/wiki/Q75","display_name":"The Internet","level":2,"score":0.24690000712871552}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tnsm.2026.3695712","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tnsm.2026.3695712","pdf_url":null,"source":{"id":"https://openalex.org/S173527311","display_name":"IEEE Transactions on Network and Service Management","issn_l":"1932-4537","issn":["1932-4537","2373-7379"],"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 Transactions on Network and Service Management","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6565933401","display_name":null,"funder_award_id":"62072425","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"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":0,"referenced_works":[],"related_works":[],"abstract_inverted_index":{"In":[0,43],"the":[1,78,138,151,171,184],"platform":[2],"of":[3,82],"Low":[4],"Earth":[5],"Orbit":[6],"(LEO)":[7],"satellite":[8,16,63,121],"constellations":[9],"combined":[10],"with":[11,65,91,170],"terrestrial":[12],"edge":[13,18,57,67,104,123],"servers,":[14],"both":[15],"and":[17,23,26,96,110,122,132,135,144,158],"nodes":[19,124],"have":[20],"limited":[21],"storage":[22,131],"computing":[24,133],"resources,":[25],"each":[27],"content":[28,50,88],"item":[29],"may":[30],"be":[31],"available":[32],"in":[33,52],"multiple":[34,66],"bitrate\u2013quality":[35],"representations,":[36],"making":[37],"cache":[38,117,168],"allocation":[39],"a":[40,53,60,87,92,97,126,154,161],"challenging":[41],"task.":[42],"this":[44],"paper,":[45],"we":[46],"study":[47],"QoE-aware":[48],"multi-representation":[49],"caching":[51,163],"heterogeneous":[54],"LEO":[55,62],"satellite\u2013":[56],"architecture,":[58],"where":[59],"serving":[61,108],"cooperates":[64],"servers":[68],"to":[69,74,149,159],"deliver":[70],"encoded":[71],"video":[72],"representations":[73],"users.":[75],"We":[76,115],"model":[77],"expected":[79],"user":[80],"Quality":[81],"Experience":[83],"(QoE)":[84],"by":[85,107],"combining":[86],"popularity":[89],"distribution":[90],"representation-dependent":[93],"quality":[94],"metric":[95],"hierarchical":[98],"delivery":[99],"path":[100],"that":[101,137,165,183],"prioritizes":[102],"nearby":[103],"caches,":[105],"followed":[106],"satellites":[109],"inter-satellite":[111],"links":[112],"or":[113],"gateways.":[114],"formulate":[116],"placement":[118],"decisions":[119],"at":[120],"as":[125,153],"joint":[127],"optimization":[128],"problem":[129,152],"under":[130],"constraints":[134],"show":[136,182],"resulting":[139],"utility":[140],"function":[141],"is":[142],"monotone":[143],"submodular.":[145],"This":[146],"allows":[147],"us":[148],"cast":[150],"submodular":[155],"knapsack":[156],"maximization":[157],"design":[160],"greedy":[162],"strategy":[164],"iteratively":[166],"selects":[167],"actions":[169],"largest":[172],"marginal":[173],"QoE":[174,189],"gain":[175],"per":[176],"unit":[177],"resource":[178],"cost.":[179],"Simulation":[180],"results":[181],"proposed":[185],"approach":[186],"yields":[187],"higher":[188],"than":[190],"conventional":[191],"ones.":[192]},"counts_by_year":[],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2026-05-22T00:00:00"}