{"id":"https://openalex.org/W3080191980","doi":"https://doi.org/10.1109/tmm.2019.2957993","title":"Tile-Based Joint Caching and Delivery of 360\u00b0 Videos in Heterogeneous Networks","display_name":"Tile-Based Joint Caching and Delivery of 360\u00b0 Videos in Heterogeneous Networks","publication_year":2019,"publication_date":"2019-12-12","ids":{"openalex":"https://openalex.org/W3080191980","doi":"https://doi.org/10.1109/tmm.2019.2957993","mag":"3080191980"},"language":"en","primary_location":{"id":"doi:10.1109/tmm.2019.2957993","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmm.2019.2957993","pdf_url":null,"source":{"id":"https://openalex.org/S137030581","display_name":"IEEE Transactions on Multimedia","issn_l":"1520-9210","issn":["1520-9210","1941-0077"],"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 Multimedia","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/A5031892757","display_name":"Pantelis Maniotis","orcid":"https://orcid.org/0000-0001-9432-0440"},"institutions":[{"id":"https://openalex.org/I110002522","display_name":"University of Essex","ror":"https://ror.org/02nkf1q06","country_code":"GB","type":"education","lineage":["https://openalex.org/I110002522"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Pantelis Maniotis","raw_affiliation_strings":["School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K"],"raw_orcid":"https://orcid.org/0000-0001-9432-0440","affiliations":[{"raw_affiliation_string":"School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5038503697","display_name":"Eirina Bourtsoulatze","orcid":"https://orcid.org/0000-0002-9897-8853"},"institutions":[{"id":"https://openalex.org/I45129253","display_name":"University College London","ror":"https://ror.org/02jx3x895","country_code":"GB","type":"education","lineage":["https://openalex.org/I124357947","https://openalex.org/I45129253"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Eirina Bourtsoulatze","raw_affiliation_strings":["Department of Electronics and Electrical Engineering, University College London, London, U.K"],"raw_orcid":"https://orcid.org/0000-0002-9897-8853","affiliations":[{"raw_affiliation_string":"Department of Electronics and Electrical Engineering, University College London, London, U.K","institution_ids":["https://openalex.org/I45129253"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5011969400","display_name":"Nikolaos Thomos","orcid":"https://orcid.org/0000-0001-7266-2642"},"institutions":[{"id":"https://openalex.org/I110002522","display_name":"University of Essex","ror":"https://ror.org/02nkf1q06","country_code":"GB","type":"education","lineage":["https://openalex.org/I110002522"]}],"countries":["GB"],"is_corresponding":false,"raw_author_name":"Nikolaos Thomos","raw_affiliation_strings":["School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K"],"raw_orcid":"https://orcid.org/0000-0001-7266-2642","affiliations":[{"raw_affiliation_string":"School of Computer Science and Electronic Engineering, University of Essex, Colchester, U.K","institution_ids":["https://openalex.org/I110002522"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":4.4428,"has_fulltext":false,"cited_by_count":46,"citation_normalized_percentile":{"value":0.95166285,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":"22","issue":"9","first_page":"2382","last_page":"2395"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T11478","display_name":"Caching and Content Delivery","score":0.9998000264167786,"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":0.9998000264167786,"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/T10742","display_name":"Peer-to-Peer Network Technologies","score":0.9570000171661377,"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/T11896","display_name":"Opportunistic and Delay-Tolerant Networks","score":0.9496999979019165,"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":0.909372091293335},{"id":"https://openalex.org/keywords/cache","display_name":"Cache","score":0.7694554924964905},{"id":"https://openalex.org/keywords/backhaul","display_name":"Backhaul (telecommunications)","score":0.7000237703323364},{"id":"https://openalex.org/keywords/encoding","display_name":"Encoding (memory)","score":0.5644309520721436},{"id":"https://openalex.org/keywords/enhanced-data-rates-for-gsm-evolution","display_name":"Enhanced Data Rates for GSM Evolution","score":0.5359758734703064},{"id":"https://openalex.org/keywords/base-station","display_name":"Base station","score":0.5323973298072815},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.5278567671775818},{"id":"https://openalex.org/keywords/heterogeneous-network","display_name":"Heterogeneous network","score":0.4804922342300415},{"id":"https://openalex.org/keywords/joint","display_name":"Joint (building)","score":0.4480215311050415},{"id":"https://openalex.org/keywords/edge-device","display_name":"Edge device","score":0.4260809123516083},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.3784310519695282},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.35440799593925476},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.34844160079956055},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.34136825799942017},{"id":"https://openalex.org/keywords/cloud-computing","display_name":"Cloud computing","score":0.14911755919456482},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.11400586366653442},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.10946065187454224}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.909372091293335},{"id":"https://openalex.org/C115537543","wikidata":"https://www.wikidata.org/wiki/Q165596","display_name":"Cache","level":2,"score":0.7694554924964905},{"id":"https://openalex.org/C103760667","wikidata":"https://www.wikidata.org/wiki/Q798444","display_name":"Backhaul (telecommunications)","level":3,"score":0.7000237703323364},{"id":"https://openalex.org/C125411270","wikidata":"https://www.wikidata.org/wiki/Q18653","display_name":"Encoding (memory)","level":2,"score":0.5644309520721436},{"id":"https://openalex.org/C162307627","wikidata":"https://www.wikidata.org/wiki/Q204833","display_name":"Enhanced Data Rates for GSM Evolution","level":2,"score":0.5359758734703064},{"id":"https://openalex.org/C68649174","wikidata":"https://www.wikidata.org/wiki/Q1379116","display_name":"Base station","level":2,"score":0.5323973298072815},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.5278567671775818},{"id":"https://openalex.org/C158207573","wikidata":"https://www.wikidata.org/wiki/Q5747224","display_name":"Heterogeneous network","level":4,"score":0.4804922342300415},{"id":"https://openalex.org/C18555067","wikidata":"https://www.wikidata.org/wiki/Q8375051","display_name":"Joint (building)","level":2,"score":0.4480215311050415},{"id":"https://openalex.org/C138236772","wikidata":"https://www.wikidata.org/wiki/Q25098575","display_name":"Edge device","level":3,"score":0.4260809123516083},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.3784310519695282},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.35440799593925476},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.34844160079956055},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.34136825799942017},{"id":"https://openalex.org/C79974875","wikidata":"https://www.wikidata.org/wiki/Q483639","display_name":"Cloud computing","level":2,"score":0.14911755919456482},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.11400586366653442},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.10946065187454224},{"id":"https://openalex.org/C170154142","wikidata":"https://www.wikidata.org/wiki/Q150737","display_name":"Architectural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tmm.2019.2957993","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tmm.2019.2957993","pdf_url":null,"source":{"id":"https://openalex.org/S137030581","display_name":"IEEE Transactions on Multimedia","issn_l":"1520-9210","issn":["1520-9210","1941-0077"],"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 Multimedia","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.6100000143051147}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":45,"referenced_works":["https://openalex.org/W1525589287","https://openalex.org/W1626605606","https://openalex.org/W1974561310","https://openalex.org/W2006738678","https://openalex.org/W2042077652","https://openalex.org/W2061442141","https://openalex.org/W2116978935","https://openalex.org/W2146395539","https://openalex.org/W2243883016","https://openalex.org/W2283866494","https://openalex.org/W2310062474","https://openalex.org/W2394653952","https://openalex.org/W2478542382","https://openalex.org/W2519564973","https://openalex.org/W2523974527","https://openalex.org/W2527384707","https://openalex.org/W2559537540","https://openalex.org/W2576191470","https://openalex.org/W2577588566","https://openalex.org/W2591589536","https://openalex.org/W2592916654","https://openalex.org/W2605285283","https://openalex.org/W2609797039","https://openalex.org/W2611249160","https://openalex.org/W2740600745","https://openalex.org/W2741833902","https://openalex.org/W2757633303","https://openalex.org/W2766156239","https://openalex.org/W2771687412","https://openalex.org/W2775302890","https://openalex.org/W2784093995","https://openalex.org/W2787403499","https://openalex.org/W2787561206","https://openalex.org/W2788671143","https://openalex.org/W2806803384","https://openalex.org/W2810054667","https://openalex.org/W2903381293","https://openalex.org/W2963723102","https://openalex.org/W2964232839","https://openalex.org/W2988544815","https://openalex.org/W3104675965","https://openalex.org/W3105022665","https://openalex.org/W4236127247","https://openalex.org/W6736759360","https://openalex.org/W6756838197"],"related_works":["https://openalex.org/W2339056049","https://openalex.org/W2963969622","https://openalex.org/W2771746866","https://openalex.org/W4376106090","https://openalex.org/W3102090507","https://openalex.org/W2129068897","https://openalex.org/W2742549776","https://openalex.org/W1557609645","https://openalex.org/W4233374345","https://openalex.org/W3157859045"],"abstract_inverted_index":{"The":[0,60,252],"recent":[1],"surge":[2],"of":[3,8,20,44,51,65,107,150,175,179,188,197,229,270],"applications":[4],"involving":[5],"the":[6,42,96,104,114,119,122,129,136,147,151,167,180,186,195,198,230,255,268],"use":[7],"360\u00b0":[9,16,52,66,214],"video":[10,17,56,67,143,215],"challenges":[11],"mobile":[12],"networks":[13],"infrastructure,":[14],"as":[15,99,223,225],"files":[18],"are":[19,30],"significant":[21],"size,":[22],"and":[23,26,49,72,89,205,220,238,241,260,267],"current":[24],"delivery":[25,50,138,261],"edge":[27],"caching":[28,48,259],"architectures":[29],"unable":[31],"to":[32,74,81,91,95,112,140,165,173],"guarantee":[33],"their":[34],"timely":[35],"delivery.":[36],"In":[37,131],"this":[38],"paper,":[39],"we":[40,133,154,193],"investigate":[41],"problem":[43,169],"joint":[45],"collaborative":[46],"content-aware":[47],"videos":[53],"in":[54,69,83,103,118],"a":[55,159],"on":[57,263],"demand":[58],"setting.":[59],"proposed":[61,199,231],"scheme":[62],"takes":[63],"advantage":[64],"encoding":[68,216,237,246],"multiple":[70,108,218],"tiles":[71,80,117,124,219,245],"layers":[73],"make":[75],"fine-grained":[76],"decisions":[77,262],"regarding":[78],"which":[79],"cache":[82,113],"each":[84],"Small":[85],"Base":[86],"Station":[87],"(SBS),":[88],"where":[90],"deliver":[92],"them":[93],"from":[94,258],"end":[97],"users,":[98],"users":[100],"may":[101,125],"reside":[102],"coverage":[105],"area":[106],"SBSs.":[109],"This":[110,162],"permits":[111],"most":[115],"popular":[116],"SBSs,":[120],"while":[121],"remaining":[123],"be":[126],"obtained":[127],"through":[128],"backhaul.":[130],"addition,":[132],"explicitly":[134],"consider":[135,213],"time":[137],"constraints":[139],"ensure":[141],"continuous":[142],"playback.":[144],"To":[145],"reduce":[146],"computational":[148],"complexity":[149],"optimization":[152],"problem,":[153],"simplify":[155],"it":[156,207],"by":[157],"introducing":[158],"fairness":[160],"constraint.":[161],"allows":[163],"us":[164],"split":[166],"original":[168],"into":[170,217],"subproblems":[171,181],"corresponding":[172],"Groups":[174],"Pictures":[176],"(GOP).":[177],"Each":[178],"is":[182],"then":[183],"solved":[184],"with":[185,208,226,248],"method":[187,200],"Lagrange":[189],"partial":[190],"relaxation.":[191],"Finally,":[192],"evaluate":[194],"performance":[196],"for":[201],"various":[202],"system":[203],"parameters":[204],"compare":[206],"schemes":[209],"that":[210,234,243],"do":[211],"not":[212],"quality":[221],"layers,":[222],"well":[224],"two":[227],"variants":[228],"method:":[232],"one":[233],"considers":[235],"layered":[236],"SBSs":[239,250,272],"collaboration":[240],"another":[242],"uses":[244],"but":[247],"no":[249],"collaboration.":[251,273],"results":[253],"showcase":[254],"benefits":[256],"coming":[257],"per":[264],"tile":[265],"basis":[266],"importance":[269],"exploiting":[271]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":7},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":7},{"year":2020,"cited_by_count":9},{"year":2019,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
