{"id":"https://openalex.org/W3177751067","doi":"https://doi.org/10.1109/tnsm.2021.3096254","title":"Virtual Network Function Allocation in Service Function Chains Using Backups With Availability Schedule","display_name":"Virtual Network Function Allocation in Service Function Chains Using Backups With Availability Schedule","publication_year":2021,"publication_date":"2021-07-12","ids":{"openalex":"https://openalex.org/W3177751067","doi":"https://doi.org/10.1109/tnsm.2021.3096254","mag":"3177751067"},"language":"en","primary_location":{"id":"doi:10.1109/tnsm.2021.3096254","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tnsm.2021.3096254","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/A5046633345","display_name":"Rui Kang","orcid":"https://orcid.org/0000-0002-1564-8753"},"institutions":[{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]},{"id":"https://openalex.org/I39012071","display_name":"Kyoto College of Graduate Studies for Informatics","ror":"https://ror.org/05mzj8a56","country_code":"JP","type":"education","lineage":["https://openalex.org/I39012071"]}],"countries":["JP"],"is_corresponding":true,"raw_author_name":"Rui Kang","raw_affiliation_strings":["Graduate School of Informatics, Kyoto University, Kyoto, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Informatics, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I39012071","https://openalex.org/I22299242"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5048011832","display_name":"Fujun He","orcid":"https://orcid.org/0000-0002-2860-2930"},"institutions":[{"id":"https://openalex.org/I39012071","display_name":"Kyoto College of Graduate Studies for Informatics","ror":"https://ror.org/05mzj8a56","country_code":"JP","type":"education","lineage":["https://openalex.org/I39012071"]},{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Fujun He","raw_affiliation_strings":["Graduate School of Informatics, Kyoto University, Kyoto, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Informatics, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I39012071","https://openalex.org/I22299242"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5047825950","display_name":"Eiji Oki","orcid":"https://orcid.org/0000-0003-2177-5027"},"institutions":[{"id":"https://openalex.org/I39012071","display_name":"Kyoto College of Graduate Studies for Informatics","ror":"https://ror.org/05mzj8a56","country_code":"JP","type":"education","lineage":["https://openalex.org/I39012071"]},{"id":"https://openalex.org/I22299242","display_name":"Kyoto University","ror":"https://ror.org/02kpeqv85","country_code":"JP","type":"education","lineage":["https://openalex.org/I22299242"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Eiji Oki","raw_affiliation_strings":["Graduate School of Informatics, Kyoto University, Kyoto, Japan"],"affiliations":[{"raw_affiliation_string":"Graduate School of Informatics, Kyoto University, Kyoto, Japan","institution_ids":["https://openalex.org/I39012071","https://openalex.org/I22299242"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5046633345"],"corresponding_institution_ids":["https://openalex.org/I22299242","https://openalex.org/I39012071"],"apc_list":null,"apc_paid":null,"fwci":1.8338,"has_fulltext":false,"cited_by_count":13,"citation_normalized_percentile":{"value":0.85756295,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":98},"biblio":{"volume":"18","issue":"4","first_page":"4294","last_page":"4310"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10714","display_name":"Software-Defined Networks and 5G","score":1.0,"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/T10714","display_name":"Software-Defined Networks and 5G","score":1.0,"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/T10138","display_name":"Network Traffic and Congestion Control","score":0.9916999936103821,"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/T10847","display_name":"Advanced Optical Network Technologies","score":0.9890999794006348,"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/backup","display_name":"Backup","score":0.9423376321792603},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8371789455413818},{"id":"https://openalex.org/keywords/schedule","display_name":"Schedule","score":0.7797313928604126},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6060748100280762},{"id":"https://openalex.org/keywords/node","display_name":"Node (physics)","score":0.5849068760871887},{"id":"https://openalex.org/keywords/service","display_name":"Service (business)","score":0.5679401159286499},{"id":"https://openalex.org/keywords/integer-programming","display_name":"Integer programming","score":0.5595088601112366},{"id":"https://openalex.org/keywords/virtual-network","display_name":"Virtual network","score":0.5169850587844849},{"id":"https://openalex.org/keywords/key","display_name":"Key (lock)","score":0.4892432689666748},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.4585573077201843},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.4399978220462799},{"id":"https://openalex.org/keywords/operating-system","display_name":"Operating system","score":0.12519213557243347},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.11093416810035706},{"id":"https://openalex.org/keywords/engineering","display_name":"Engineering","score":0.0659051239490509}],"concepts":[{"id":"https://openalex.org/C2780945871","wikidata":"https://www.wikidata.org/wiki/Q194274","display_name":"Backup","level":2,"score":0.9423376321792603},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8371789455413818},{"id":"https://openalex.org/C68387754","wikidata":"https://www.wikidata.org/wiki/Q7271585","display_name":"Schedule","level":2,"score":0.7797313928604126},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6060748100280762},{"id":"https://openalex.org/C62611344","wikidata":"https://www.wikidata.org/wiki/Q1062658","display_name":"Node (physics)","level":2,"score":0.5849068760871887},{"id":"https://openalex.org/C2780378061","wikidata":"https://www.wikidata.org/wiki/Q25351891","display_name":"Service (business)","level":2,"score":0.5679401159286499},{"id":"https://openalex.org/C56086750","wikidata":"https://www.wikidata.org/wiki/Q6042592","display_name":"Integer programming","level":2,"score":0.5595088601112366},{"id":"https://openalex.org/C2776874963","wikidata":"https://www.wikidata.org/wiki/Q4112081","display_name":"Virtual network","level":2,"score":0.5169850587844849},{"id":"https://openalex.org/C26517878","wikidata":"https://www.wikidata.org/wiki/Q228039","display_name":"Key (lock)","level":2,"score":0.4892432689666748},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.4585573077201843},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.4399978220462799},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.12519213557243347},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.11093416810035706},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0659051239490509},{"id":"https://openalex.org/C66938386","wikidata":"https://www.wikidata.org/wiki/Q633538","display_name":"Structural engineering","level":1,"score":0.0},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.0},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tnsm.2021.3096254","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tnsm.2021.3096254","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":[{"id":"https://metadata.un.org/sdg/9","display_name":"Industry, innovation and infrastructure","score":0.41999998688697815}],"awards":[{"id":"https://openalex.org/G1642938526","display_name":null,"funder_award_id":"21H03426","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G6015026089","display_name":null,"funder_award_id":"21J21552","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"},{"id":"https://openalex.org/G7873054827","display_name":null,"funder_award_id":"18H03230","funder_id":"https://openalex.org/F4320334764","funder_display_name":"Japan Society for the Promotion of Science"}],"funders":[{"id":"https://openalex.org/F4320334764","display_name":"Japan Society for the Promotion of Science","ror":"https://ror.org/00hhkn466"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":41,"referenced_works":["https://openalex.org/W1606574190","https://openalex.org/W2035782371","https://openalex.org/W2056291033","https://openalex.org/W2142224489","https://openalex.org/W2246321121","https://openalex.org/W2279134928","https://openalex.org/W2288748300","https://openalex.org/W2289096564","https://openalex.org/W2481890694","https://openalex.org/W2500898769","https://openalex.org/W2501322570","https://openalex.org/W2537627000","https://openalex.org/W2547270753","https://openalex.org/W2597898076","https://openalex.org/W2615618921","https://openalex.org/W2729266811","https://openalex.org/W2784269492","https://openalex.org/W2790045047","https://openalex.org/W2890094259","https://openalex.org/W2891148312","https://openalex.org/W2897196169","https://openalex.org/W2902834637","https://openalex.org/W2946282185","https://openalex.org/W2946946497","https://openalex.org/W2956655210","https://openalex.org/W2962896169","https://openalex.org/W2963051823","https://openalex.org/W2964075882","https://openalex.org/W2969547341","https://openalex.org/W3009249682","https://openalex.org/W3015825841","https://openalex.org/W3016017978","https://openalex.org/W3034938232","https://openalex.org/W3041008884","https://openalex.org/W3088524644","https://openalex.org/W3099075430","https://openalex.org/W3128237376","https://openalex.org/W3137353864","https://openalex.org/W4232093111","https://openalex.org/W6636316586","https://openalex.org/W6762393757"],"related_works":["https://openalex.org/W2955195711","https://openalex.org/W2354454611","https://openalex.org/W2993266126","https://openalex.org/W2392283887","https://openalex.org/W2351388597","https://openalex.org/W2939925694","https://openalex.org/W2829881200","https://openalex.org/W4241986464","https://openalex.org/W2184647741","https://openalex.org/W1985525502"],"abstract_inverted_index":{"A":[0],"suitable":[1],"virtual":[2],"network":[3],"function":[4,23,29,127],"(VNF)":[5],"placement":[6,30,47],"considering":[7,141],"a":[8,42,66],"node":[9,26,37,55],"availability":[10,106,133],"schedule":[11,107],"extends":[12],"service":[13,19,33,51,126,194],"continuous":[14,109,159,195],"serviceable":[15],"time":[16,70,110,122,161,179,197,200],"by":[17,22,36,54,57],"suppressing":[18],"interruptions":[20,34,52],"caused":[21,35,53],"reallocation":[24],"and":[25,44,78,100],"unavailabilities.":[27,38],"However,":[28],"cannot":[31],"avoid":[32,50],"This":[39],"paper":[40],"proposes":[41],"primary":[43,99],"backup":[45,59,63,101,146],"VNF":[46],"model":[48,87,140],"to":[49,96,114,170,191],"unavailabilities":[56,176],"using":[58],"functions.":[60],"The":[61,85],"considered":[62],"functions":[64,147],"have":[65],"period":[67],"of":[68,81,119,145,153,157,174],"startup":[69],"for":[71],"preparation":[72],"before":[73],"they":[74],"can":[75,182],"be":[76],"used":[77],"the":[79,98,105,116,131,138,142,154,172,184,189,193],"number":[80,118,144,156,173],"them":[82],"is":[83,88],"limited.":[84],"proposed":[86,139],"formulated":[89],"as":[90],"an":[91,168],"integer":[92],"linear":[93],"programming":[94],"problem":[95],"place":[97],"VNFs":[102],"based":[103],"on":[104],"at":[108,177,198],"slots.":[111],"We":[112,135,166],"aim":[113],"maximize":[115],"minimum":[117,155],"continuously":[120],"available":[121,160,196],"slots":[123,162],"in":[124,151,163],"all":[125,164],"chains":[128],"(SFCs)":[129],"over":[130],"deterministic":[132],"schedule.":[134],"obverse":[136],"that":[137],"limited":[143],"outperforms":[148],"baseline":[149],"models":[150],"terms":[152],"longest":[158],"SFCs.":[165],"introduce":[167],"algorithm":[169],"estimate":[171],"key":[175],"each":[178,199],"slot,":[180],"which":[181,187],"find":[183],"unavailable":[185],"nodes":[186],"are":[188],"bottlenecks":[190],"increase":[192],"slot.":[201]},"counts_by_year":[{"year":2025,"cited_by_count":1},{"year":2024,"cited_by_count":3},{"year":2023,"cited_by_count":5},{"year":2022,"cited_by_count":4}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
