{"id":"https://openalex.org/W3216373217","doi":"https://doi.org/10.1109/nof52522.2021.9609898","title":"Improving East/Westbound SDN Connectivity via Enhanced Availability","display_name":"Improving East/Westbound SDN Connectivity via Enhanced Availability","publication_year":2021,"publication_date":"2021-10-06","ids":{"openalex":"https://openalex.org/W3216373217","doi":"https://doi.org/10.1109/nof52522.2021.9609898","mag":"3216373217"},"language":"en","primary_location":{"id":"doi:10.1109/nof52522.2021.9609898","is_oa":false,"landing_page_url":"https://doi.org/10.1109/nof52522.2021.9609898","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 12th International Conference on Network of the Future (NoF)","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"http://hdl.handle.net/10316/96833","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5053485295","display_name":"Dorabella Santos","orcid":"https://orcid.org/0000-0003-0368-2222"},"institutions":[{"id":"https://openalex.org/I4210125590","display_name":"Institute for Systems Engineering and Computers","ror":"https://ror.org/033wn8m60","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":true,"raw_author_name":"Dorabella Santos","raw_affiliation_strings":["INESC Coimbra, DEEC, 3030-290 Coimbra, Portugal"],"affiliations":[{"raw_affiliation_string":"INESC Coimbra, DEEC, 3030-290 Coimbra, Portugal","institution_ids":["https://openalex.org/I4210125590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5080425640","display_name":"Joao P. Vidal","orcid":null},"institutions":[{"id":"https://openalex.org/I4210125590","display_name":"Institute for Systems Engineering and Computers","ror":"https://ror.org/033wn8m60","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Joao P. Vidal","raw_affiliation_strings":["INESC Coimbra, DEEC, 3030-290 Coimbra, Portugal"],"affiliations":[{"raw_affiliation_string":"INESC Coimbra, DEEC, 3030-290 Coimbra, Portugal","institution_ids":["https://openalex.org/I4210125590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5062640364","display_name":"Teresa Gomes","orcid":"https://orcid.org/0000-0002-3084-5608"},"institutions":[{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]},{"id":"https://openalex.org/I4210125590","display_name":"Institute for Systems Engineering and Computers","ror":"https://ror.org/033wn8m60","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Teresa Gomes","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Coimbra, INESC Coimbra, 3030-290 Coimbra, Portugal"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Coimbra, INESC Coimbra, 3030-290 Coimbra, Portugal","institution_ids":["https://openalex.org/I76903346","https://openalex.org/I4210125590"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5037870241","display_name":"L\u00facia Martins","orcid":"https://orcid.org/0000-0002-6534-0159"},"institutions":[{"id":"https://openalex.org/I76903346","display_name":"University of Coimbra","ror":"https://ror.org/04z8k9a98","country_code":"PT","type":"education","lineage":["https://openalex.org/I76903346"]},{"id":"https://openalex.org/I4210125590","display_name":"Institute for Systems Engineering and Computers","ror":"https://ror.org/033wn8m60","country_code":"PT","type":"nonprofit","lineage":["https://openalex.org/I4210125590"]}],"countries":["PT"],"is_corresponding":false,"raw_author_name":"Lucia Martins","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Coimbra, INESC Coimbra, 3030-290 Coimbra, Portugal"],"affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Coimbra, INESC Coimbra, 3030-290 Coimbra, Portugal","institution_ids":["https://openalex.org/I76903346","https://openalex.org/I4210125590"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5053485295"],"corresponding_institution_ids":["https://openalex.org/I4210125590"],"apc_list":null,"apc_paid":null,"fwci":0.3056,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.61304907,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":96},"biblio":{"volume":"24","issue":null,"first_page":"1","last_page":"9"},"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/T10847","display_name":"Advanced Optical Network Technologies","score":0.9944999814033508,"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/T10138","display_name":"Network Traffic and Congestion Control","score":0.9853000044822693,"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":0.7604296803474426},{"id":"https://openalex.org/keywords/software-defined-networking","display_name":"Software-defined networking","score":0.6764896512031555},{"id":"https://openalex.org/keywords/heuristic","display_name":"Heuristic","score":0.6278694272041321},{"id":"https://openalex.org/keywords/benchmark","display_name":"Benchmark (surveying)","score":0.5768122673034668},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.5448886752128601},{"id":"https://openalex.org/keywords/quality-of-service","display_name":"Quality of service","score":0.4886987507343292},{"id":"https://openalex.org/keywords/set","display_name":"Set (abstract data type)","score":0.4701680541038513},{"id":"https://openalex.org/keywords/graph","display_name":"Graph","score":0.4488254189491272},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.42908310890197754},{"id":"https://openalex.org/keywords/decomposition","display_name":"Decomposition","score":0.4126642346382141},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2644329369068146},{"id":"https://openalex.org/keywords/theoretical-computer-science","display_name":"Theoretical computer science","score":0.20171985030174255},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.10322293639183044},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.09379428625106812}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7604296803474426},{"id":"https://openalex.org/C77270119","wikidata":"https://www.wikidata.org/wiki/Q1655198","display_name":"Software-defined networking","level":2,"score":0.6764896512031555},{"id":"https://openalex.org/C173801870","wikidata":"https://www.wikidata.org/wiki/Q201413","display_name":"Heuristic","level":2,"score":0.6278694272041321},{"id":"https://openalex.org/C185798385","wikidata":"https://www.wikidata.org/wiki/Q1161707","display_name":"Benchmark (surveying)","level":2,"score":0.5768122673034668},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.5448886752128601},{"id":"https://openalex.org/C5119721","wikidata":"https://www.wikidata.org/wiki/Q220501","display_name":"Quality of service","level":2,"score":0.4886987507343292},{"id":"https://openalex.org/C177264268","wikidata":"https://www.wikidata.org/wiki/Q1514741","display_name":"Set (abstract data type)","level":2,"score":0.4701680541038513},{"id":"https://openalex.org/C132525143","wikidata":"https://www.wikidata.org/wiki/Q141488","display_name":"Graph","level":2,"score":0.4488254189491272},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.42908310890197754},{"id":"https://openalex.org/C124681953","wikidata":"https://www.wikidata.org/wiki/Q339062","display_name":"Decomposition","level":2,"score":0.4126642346382141},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2644329369068146},{"id":"https://openalex.org/C80444323","wikidata":"https://www.wikidata.org/wiki/Q2878974","display_name":"Theoretical computer science","level":1,"score":0.20171985030174255},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.10322293639183044},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.09379428625106812},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C18903297","wikidata":"https://www.wikidata.org/wiki/Q7150","display_name":"Ecology","level":1,"score":0.0},{"id":"https://openalex.org/C13280743","wikidata":"https://www.wikidata.org/wiki/Q131089","display_name":"Geodesy","level":1,"score":0.0},{"id":"https://openalex.org/C205649164","wikidata":"https://www.wikidata.org/wiki/Q1071","display_name":"Geography","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0}],"mesh":[],"locations_count":3,"locations":[{"id":"doi:10.1109/nof52522.2021.9609898","is_oa":false,"landing_page_url":"https://doi.org/10.1109/nof52522.2021.9609898","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 12th International Conference on Network of the Future (NoF)","raw_type":"proceedings-article"},{"id":"pmh:oai:estudogeral.sib.uc.pt:10316/96833","is_oa":true,"landing_page_url":"http://hdl.handle.net/10316/96833","pdf_url":null,"source":{"id":"https://openalex.org/S4306402070","display_name":"Estudo Geral (Universidad de Coimbra)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I76903346","host_organization_name":"University of Coimbra","host_organization_lineage":["https://openalex.org/I76903346"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"http://purl.org/coar/resource_type/c_6501"},{"id":"pmh:oai:estudogeral.uc.pt:10316/96833","is_oa":true,"landing_page_url":"https://hdl.handle.net/10316/96833","pdf_url":null,"source":{"id":"https://openalex.org/S4306402070","display_name":"Estudo Geral (Universidad de Coimbra)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I76903346","host_organization_name":"University of Coimbra","host_organization_lineage":["https://openalex.org/I76903346"],"host_organization_lineage_names":[],"type":"repository"},"license":"other-oa","license_id":"https://openalex.org/licenses/other-oa","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":{"id":"pmh:oai:estudogeral.sib.uc.pt:10316/96833","is_oa":true,"landing_page_url":"http://hdl.handle.net/10316/96833","pdf_url":null,"source":{"id":"https://openalex.org/S4306402070","display_name":"Estudo Geral (Universidad de Coimbra)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I76903346","host_organization_name":"University of Coimbra","host_organization_lineage":["https://openalex.org/I76903346"],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"","raw_type":"http://purl.org/coar/resource_type/c_6501"},"sustainable_development_goals":[],"awards":[],"funders":[{"id":"https://openalex.org/F4320334779","display_name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","ror":"https://ror.org/00snfqn58"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W1983918362","https://openalex.org/W2007113652","https://openalex.org/W2083882370","https://openalex.org/W2093628349","https://openalex.org/W2107944181","https://openalex.org/W2130058590","https://openalex.org/W2136835942","https://openalex.org/W2155526624","https://openalex.org/W2398914073","https://openalex.org/W2558568316","https://openalex.org/W2588194549","https://openalex.org/W2613070411","https://openalex.org/W2624030676","https://openalex.org/W2729065469","https://openalex.org/W2797056518","https://openalex.org/W2801480870","https://openalex.org/W2967556836","https://openalex.org/W3011712405","https://openalex.org/W3025805331","https://openalex.org/W3101006057","https://openalex.org/W3127447045","https://openalex.org/W6789680617"],"related_works":["https://openalex.org/W2378211422","https://openalex.org/W4321353415","https://openalex.org/W2745001401","https://openalex.org/W2130974462","https://openalex.org/W2028665553","https://openalex.org/W2086519370","https://openalex.org/W972276598","https://openalex.org/W4246352526","https://openalex.org/W2121910908","https://openalex.org/W915438175"],"abstract_inverted_index":{"The":[0],"control":[1],"plane":[2],"in":[3,34],"software-defined":[4],"networking":[5],"(SDN)":[6],"is":[7,47,88,96,105,140,161,172,196],"composed":[8],"by":[9],"a":[10,38,48,57,82,91,102,115,120,124,134,157,188,194],"logically":[11],"centralized":[12],"set":[13,142],"of":[14,21,41,66,76,143,184],"controllers":[15,26,139],"which":[16],"acts":[17],"as":[18,90,193],"the":[19,22,42,53,61,64,73,78,109,131,138,141,151,182,185],"brain":[20],"SDN":[23],"network.":[24],"These":[25],"need":[27],"to":[28,36,51,99,118,149,175,191],"be":[29,147],"connected":[30],"through":[31],"east/westbound":[32],"interfaces":[33],"order":[35],"have":[37],"synchronized":[39],"view":[40],"network":[43,59],"and":[44,98,167],"therefore":[45],"it":[46,101],"key":[49],"issue":[50],"guarantee":[52],"intercontroller":[54,79,164],"connectivity":[55,80],"for":[56,163],"proper":[58],"behaviour.In":[60],"present":[62],"work,":[63],"problem":[65,95,110],"controller":[67],"placement":[68],"under":[69],"QoS":[70],"constraints":[71],"with":[72,81],"additional":[74,169],"requirement":[75],"having":[77],"given":[83],"availability":[84,165],"at":[85],"minimum":[86],"cost":[87],"addressed":[89],"bi-objective":[92],"problem.":[93],"This":[94],"NP-complete":[97],"tackle":[100],"heuristic":[103,117,187,190],"approach":[104],"proposed":[106,186],"based":[107,129],"on":[108,130],"decomposition":[111],"into":[112],"sub-problems.":[113],"In":[114,154],"previous":[116],"solve":[119],"less":[121],"general":[122,159,179],"problem,":[123],"similar":[125],"strategy":[126],"was":[127],"followed":[128],"assumption":[132],"that":[133,145],"Steiner":[135],"tree":[136],"connecting":[137],"links":[144],"should":[146],"upgraded":[148],"achieve":[150],"required":[152],"availability.":[153],"this":[155,177],"paper":[156],"more":[158,178],"sub-graph":[160],"considered":[162,174],"improvement,":[166],"an":[168],"optimization":[170],"level":[171],"also":[173,197],"address":[176],"problem.To":[180],"assess":[181],"performance":[183],"baseline":[189],"serve":[192],"benchmark":[195],"proposed.":[198]},"counts_by_year":[{"year":2022,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
