{"id":"https://openalex.org/W4412719172","doi":"https://doi.org/10.1109/tnsm.2025.3592355","title":"On the Risk-Aware Connection Defragmentation in OCS-Based Data-Center Networks","display_name":"On the Risk-Aware Connection Defragmentation in OCS-Based Data-Center Networks","publication_year":2025,"publication_date":"2025-07-25","ids":{"openalex":"https://openalex.org/W4412719172","doi":"https://doi.org/10.1109/tnsm.2025.3592355"},"language":"en","primary_location":{"id":"doi:10.1109/tnsm.2025.3592355","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tnsm.2025.3592355","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":null,"display_name":"Xiaoyan Dong","orcid":"https://orcid.org/0000-0002-9222-2537"},"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":true,"raw_author_name":"Xiaoyan Dong","raw_affiliation_strings":["School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, P. R. China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","institution_ids":["https://openalex.org/I126520041"]},{"raw_affiliation_string":"School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, P. R. China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100772832","display_name":"Xiaoliang Chen","orcid":"https://orcid.org/0000-0002-7805-6237"},"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":"Xiaoliang Chen","raw_affiliation_strings":["School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, P. R. China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","institution_ids":["https://openalex.org/I126520041"]},{"raw_affiliation_string":"School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, P. R. China","institution_ids":["https://openalex.org/I126520041"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5008574028","display_name":"Zuqing Zhu","orcid":"https://orcid.org/0000-0002-4251-788X"},"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":"Zuqing Zhu","raw_affiliation_strings":["School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, P. R. China"],"affiliations":[{"raw_affiliation_string":"School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, China","institution_ids":["https://openalex.org/I126520041"]},{"raw_affiliation_string":"School of Information Science and Technology, University of Science and Technology of China, Hefei, Anhui, P. R. China","institution_ids":["https://openalex.org/I126520041"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":["https://openalex.org/I126520041"],"apc_list":null,"apc_paid":null,"fwci":6.1931,"has_fulltext":false,"cited_by_count":2,"citation_normalized_percentile":{"value":0.96282729,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":91,"max":98},"biblio":{"volume":"22","issue":"5","first_page":"3909","last_page":"3920"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10101","display_name":"Cloud Computing and Resource Management","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10101","display_name":"Cloud Computing and Resource Management","score":0.9980000257492065,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"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/T10714","display_name":"Software-Defined Networks and 5G","score":0.9898999929428101,"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/T10715","display_name":"Distributed and Parallel Computing Systems","score":0.9866999983787537,"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":0.8186902403831482},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.6977770328521729},{"id":"https://openalex.org/keywords/data-center","display_name":"Data center","score":0.5962536334991455},{"id":"https://openalex.org/keywords/center","display_name":"Center (category theory)","score":0.46761760115623474},{"id":"https://openalex.org/keywords/connection","display_name":"Connection (principal bundle)","score":0.41295039653778076},{"id":"https://openalex.org/keywords/distributed-computing","display_name":"Distributed computing","score":0.3492526710033417}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8186902403831482},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.6977770328521729},{"id":"https://openalex.org/C153740404","wikidata":"https://www.wikidata.org/wiki/Q671224","display_name":"Data center","level":2,"score":0.5962536334991455},{"id":"https://openalex.org/C2779463800","wikidata":"https://www.wikidata.org/wiki/Q5062222","display_name":"Center (category theory)","level":2,"score":0.46761760115623474},{"id":"https://openalex.org/C13355873","wikidata":"https://www.wikidata.org/wiki/Q2920850","display_name":"Connection (principal bundle)","level":2,"score":0.41295039653778076},{"id":"https://openalex.org/C120314980","wikidata":"https://www.wikidata.org/wiki/Q180634","display_name":"Distributed computing","level":1,"score":0.3492526710033417},{"id":"https://openalex.org/C127413603","wikidata":"https://www.wikidata.org/wiki/Q11023","display_name":"Engineering","level":0,"score":0.0},{"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/C185592680","wikidata":"https://www.wikidata.org/wiki/Q2329","display_name":"Chemistry","level":0,"score":0.0},{"id":"https://openalex.org/C8010536","wikidata":"https://www.wikidata.org/wiki/Q160398","display_name":"Crystallography","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tnsm.2025.3592355","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tnsm.2025.3592355","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":[{"score":0.4099999964237213,"display_name":"Partnerships for the goals","id":"https://metadata.un.org/sdg/17"}],"awards":[{"id":"https://openalex.org/G7066017972","display_name":null,"funder_award_id":"62201627","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8238211060","display_name":null,"funder_award_id":"62371432","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":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":43,"referenced_works":["https://openalex.org/W1567366855","https://openalex.org/W1652188120","https://openalex.org/W1656071056","https://openalex.org/W1967376787","https://openalex.org/W2017036528","https://openalex.org/W2038861084","https://openalex.org/W2048142551","https://openalex.org/W2059766883","https://openalex.org/W2068342608","https://openalex.org/W2077107182","https://openalex.org/W2100828185","https://openalex.org/W2106951600","https://openalex.org/W2116917711","https://openalex.org/W2119638333","https://openalex.org/W2123562112","https://openalex.org/W2131889098","https://openalex.org/W2136558412","https://openalex.org/W2141810662","https://openalex.org/W2157990152","https://openalex.org/W2270783633","https://openalex.org/W2344321131","https://openalex.org/W2506507791","https://openalex.org/W2546796833","https://openalex.org/W2606680640","https://openalex.org/W2613694343","https://openalex.org/W2623646697","https://openalex.org/W2766282988","https://openalex.org/W2769529551","https://openalex.org/W2963222872","https://openalex.org/W3002057986","https://openalex.org/W3003671474","https://openalex.org/W3004348976","https://openalex.org/W3212109505","https://openalex.org/W4230992113","https://openalex.org/W4234682775","https://openalex.org/W4290990894","https://openalex.org/W4312441425","https://openalex.org/W4365790307","https://openalex.org/W4388214386","https://openalex.org/W4391759708","https://openalex.org/W4400494447","https://openalex.org/W4401176521","https://openalex.org/W4407736535"],"related_works":["https://openalex.org/W587735977","https://openalex.org/W1978142926","https://openalex.org/W3157395178","https://openalex.org/W1965825568","https://openalex.org/W2181472888","https://openalex.org/W184455116","https://openalex.org/W2058473748","https://openalex.org/W963756281","https://openalex.org/W2379482911","https://openalex.org/W2645858920"],"abstract_inverted_index":{"The":[0],"dynamic":[1],"traffic":[2,38,56,77],"changes":[3],"in":[4,28],"an":[5],"optical":[6,19,82,85],"circuit":[7,86],"switching":[8,87],"based":[9],"data-center":[10],"network":[11],"(ODCN)":[12],"can":[13,90],"make":[14],"the":[15,23,29,45,70,80,95,115,130],"utilization":[16],"of":[17,25,47,73,97,132],"its":[18],"connections":[20,41,83],"fragmented,":[21],"degrading":[22],"efficiency":[24],"service":[26],"provisioning":[27],"ODCN.":[30],"Consequently,":[31],"connection":[32,65],"defragmentation":[33,66],"becomes":[34],"imperative.":[35],"However,":[36],"consolidating":[37],"onto":[39],"fewer":[40],"may":[42],"unilaterally":[43],"add":[44],"risk":[46,96],"bandwidth":[48,99],"contention":[49,100],"and":[50],"undermine":[51],"ODCNs\u2019":[52],"robustness":[53],"against":[54],"unexpected":[55],"bursts.":[57],"To":[58],"address":[59,114],"this":[60],"issue,":[61],"we":[62],"propose":[63],"risk-aware":[64],"(RA-cDF),":[67],"which":[68],"explores":[69],"topology":[71],"flexibility":[72],"ODCN":[74],"to":[75,113,123],"consolidate":[76],"such":[78],"that":[79],"active":[81],"through":[84],"(OCS)":[88],"switches":[89],"be":[91],"minimized":[92],"together":[93],"with":[94],"future":[98],"on":[101],"remaining":[102],"connections.":[103],"We":[104],"formulate":[105],"a":[106,121],"mixed":[107],"integer":[108],"linear":[109],"programming":[110],"(MILP)":[111],"model":[112],"RA-cDF":[116],"problem":[117],"exactly,":[118],"followed":[119],"by":[120],"heuristic":[122],"solve":[124],"it":[125],"time-efficiently.":[126],"Extensive":[127],"simulations":[128],"confirm":[129],"effectiveness":[131],"our":[133],"proposals.":[134]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1}],"updated_date":"2026-04-09T08:11:56.329763","created_date":"2025-10-10T00:00:00"}
