{"id":"https://openalex.org/W4289812988","doi":"https://doi.org/10.1109/tcomm.2022.3162648","title":"Timely Updates With Priorities: Lexicographic Age Optimality","display_name":"Timely Updates With Priorities: Lexicographic Age Optimality","publication_year":2022,"publication_date":"2022-03-28","ids":{"openalex":"https://openalex.org/W4289812988","doi":"https://doi.org/10.1109/tcomm.2022.3162648"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2022.3162648","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2022.3162648","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","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/A5072222232","display_name":"Ali Maatouk","orcid":"https://orcid.org/0000-0002-3436-7068"},"institutions":[{"id":"https://openalex.org/I4210097418","display_name":"Laboratoire des signaux et syst\u00e8mes","ror":"https://ror.org/00skw9v43","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I277688954","https://openalex.org/I277688954","https://openalex.org/I4210097418","https://openalex.org/I4210107720"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Ali Maatouk","raw_affiliation_strings":["Laboratoire des Signaux et Systèmes, CentraleSupélec, Gif-sur-Yvette, France"],"raw_orcid":"https://orcid.org/0000-0002-3436-7068","affiliations":[{"raw_affiliation_string":"Laboratoire des Signaux et Systèmes, CentraleSupélec, Gif-sur-Yvette, France","institution_ids":["https://openalex.org/I4210097418"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5003200620","display_name":"Yin Sun","orcid":"https://orcid.org/0000-0001-6811-984X"},"institutions":[{"id":"https://openalex.org/I82497590","display_name":"Auburn University","ror":"https://ror.org/02v80fc35","country_code":"US","type":"education","lineage":["https://openalex.org/I82497590"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Yin Sun","raw_affiliation_strings":["Department of Electronics and Computer Engineering (ECE), Auburn University, Auburn, AL, USA"],"raw_orcid":"https://orcid.org/0000-0001-6811-984X","affiliations":[{"raw_affiliation_string":"Department of Electronics and Computer Engineering (ECE), Auburn University, Auburn, AL, USA","institution_ids":["https://openalex.org/I82497590"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5008039780","display_name":"Anthony Ephremides","orcid":"https://orcid.org/0000-0003-0172-8944"},"institutions":[{"id":"https://openalex.org/I66946132","display_name":"University of Maryland, College Park","ror":"https://ror.org/047s2c258","country_code":"US","type":"education","lineage":["https://openalex.org/I66946132"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Anthony Ephremides","raw_affiliation_strings":["Department of Electronics and Computer Engineering (ECE), University of Maryland, College Park, MD, USA"],"raw_orcid":"https://orcid.org/0000-0003-0172-8944","affiliations":[{"raw_affiliation_string":"Department of Electronics and Computer Engineering (ECE), University of Maryland, College Park, MD, USA","institution_ids":["https://openalex.org/I66946132"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5002000523","display_name":"Mohamad Assaad","orcid":"https://orcid.org/0000-0003-3909-6241"},"institutions":[{"id":"https://openalex.org/I4210097418","display_name":"Laboratoire des signaux et syst\u00e8mes","ror":"https://ror.org/00skw9v43","country_code":"FR","type":"facility","lineage":["https://openalex.org/I1294671590","https://openalex.org/I277688954","https://openalex.org/I277688954","https://openalex.org/I4210097418","https://openalex.org/I4210107720"]}],"countries":["FR"],"is_corresponding":false,"raw_author_name":"Mohamad Assaad","raw_affiliation_strings":["Laboratoire des Signaux et Systèmes, CentraleSupélec, Gif-sur-Yvette, France"],"raw_orcid":"https://orcid.org/0000-0003-3909-6241","affiliations":[{"raw_affiliation_string":"Laboratoire des Signaux et Systèmes, CentraleSupélec, Gif-sur-Yvette, France","institution_ids":["https://openalex.org/I4210097418"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.9092,"has_fulltext":false,"cited_by_count":8,"citation_normalized_percentile":{"value":0.73756554,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"70","issue":"5","first_page":"3020","last_page":"3033"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T13553","display_name":"Age of Information Optimization","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/T13553","display_name":"Age of Information Optimization","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/T12079","display_name":"IoT Networks and Protocols","score":0.9735999703407288,"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/T10300","display_name":"Congenital Heart Disease Studies","score":0.9635999798774719,"subfield":{"id":"https://openalex.org/subfields/2713","display_name":"Epidemiology"},"field":{"id":"https://openalex.org/fields/27","display_name":"Medicine"},"domain":{"id":"https://openalex.org/domains/4","display_name":"Health Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/lexicographical-order","display_name":"Lexicographical order","score":0.6420163512229919},{"id":"https://openalex.org/keywords/scheduling","display_name":"Scheduling (production processes)","score":0.6108017563819885},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.5673456192016602},{"id":"https://openalex.org/keywords/information-age","display_name":"Information Age","score":0.5300671458244324},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.4829915761947632},{"id":"https://openalex.org/keywords/job-shop-scheduling","display_name":"Job shop scheduling","score":0.4254966080188751},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.30921822786331177},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.1689479947090149},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.13875651359558105},{"id":"https://openalex.org/keywords/economics","display_name":"Economics","score":0.08569887280464172}],"concepts":[{"id":"https://openalex.org/C159254197","wikidata":"https://www.wikidata.org/wiki/Q1144915","display_name":"Lexicographical order","level":2,"score":0.6420163512229919},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.6108017563819885},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5673456192016602},{"id":"https://openalex.org/C91093795","wikidata":"https://www.wikidata.org/wiki/Q956129","display_name":"Information Age","level":2,"score":0.5300671458244324},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4829915761947632},{"id":"https://openalex.org/C55416958","wikidata":"https://www.wikidata.org/wiki/Q6206757","display_name":"Job shop scheduling","level":3,"score":0.4254966080188751},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.30921822786331177},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.1689479947090149},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.13875651359558105},{"id":"https://openalex.org/C162324750","wikidata":"https://www.wikidata.org/wiki/Q8134","display_name":"Economics","level":0,"score":0.08569887280464172},{"id":"https://openalex.org/C74172769","wikidata":"https://www.wikidata.org/wiki/Q1446839","display_name":"Routing (electronic design automation)","level":2,"score":0.0},{"id":"https://openalex.org/C136264566","wikidata":"https://www.wikidata.org/wiki/Q159810","display_name":"Economy","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tcomm.2022.3162648","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2022.3162648","pdf_url":null,"source":{"id":"https://openalex.org/S196647941","display_name":"IEEE Transactions on Communications","issn_l":"0090-6778","issn":["0090-6778","1558-0857"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310316002","host_organization_name":"IEEE Communications Society","host_organization_lineage":["https://openalex.org/P4310316002","https://openalex.org/P4310319808"],"host_organization_lineage_names":["IEEE Communications Society","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 Communications","raw_type":"journal-article"},{"id":"pmh:oai:HAL:hal-03857929v1","is_oa":false,"landing_page_url":"https://inria.hal.science/hal-03857929","pdf_url":null,"source":{"id":"https://openalex.org/S4306402512","display_name":"HAL (Le Centre pour la Communication Scientifique Directe)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I1294671590","host_organization_name":"Centre National de la Recherche Scientifique","host_organization_lineage":["https://openalex.org/I1294671590"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"IEEE Transactions on Communications, 2022, 70 (5), pp.3020-3033. ⟨10.1109/TCOMM.2022.3162648⟩","raw_type":"info:eu-repo/semantics/article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.6600000262260437,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":43,"referenced_works":["https://openalex.org/W1993918491","https://openalex.org/W2013032827","https://openalex.org/W2069689609","https://openalex.org/W2116967158","https://openalex.org/W2145286644","https://openalex.org/W2171665783","https://openalex.org/W2267525789","https://openalex.org/W2744248483","https://openalex.org/W2782611477","https://openalex.org/W2867820427","https://openalex.org/W2884393870","https://openalex.org/W2886359150","https://openalex.org/W2887369918","https://openalex.org/W2898579845","https://openalex.org/W2907607900","https://openalex.org/W2909609033","https://openalex.org/W2909704954","https://openalex.org/W2962933829","https://openalex.org/W2963028458","https://openalex.org/W2963082493","https://openalex.org/W2963221555","https://openalex.org/W2963270598","https://openalex.org/W2964297088","https://openalex.org/W2964345816","https://openalex.org/W2969447045","https://openalex.org/W2970983057","https://openalex.org/W2971937201","https://openalex.org/W2976143718","https://openalex.org/W2997442646","https://openalex.org/W2998068689","https://openalex.org/W3005876875","https://openalex.org/W3008803558","https://openalex.org/W3015732012","https://openalex.org/W3034502728","https://openalex.org/W3041291604","https://openalex.org/W3049569600","https://openalex.org/W3097276919","https://openalex.org/W3100825950","https://openalex.org/W3107961155","https://openalex.org/W4211024811","https://openalex.org/W4245777296","https://openalex.org/W6768681491","https://openalex.org/W6773697326"],"related_works":["https://openalex.org/W1985455246","https://openalex.org/W1993634787","https://openalex.org/W3125614403","https://openalex.org/W2476923378","https://openalex.org/W2803221307","https://openalex.org/W2951826204","https://openalex.org/W4211001408","https://openalex.org/W2366147410","https://openalex.org/W3204654320","https://openalex.org/W3049187339"],"abstract_inverted_index":{"In":[0,47],"this":[1],"paper,":[2],"we":[3],"consider":[4],"a":[5,23,31,49,85,174,182],"scheduling":[6,51,87,103,162],"problem,":[7],"in":[8],"which":[9],"several":[10],"streams":[11],"of":[12,42,57,69,127,170,173,181],"status":[13,44],"update":[14,45],"packets":[15],"with":[16],"different":[17,143],"priority":[18,144],"levels":[19],"are":[20,187],"sent":[21],"through":[22],"shared":[24],"channel":[25],"to":[26,38,189],"their":[27],"destinations.":[28],"We":[29,83],"introduce":[30],"notion":[32],"oflexicographic":[33],"age":[34,118,134,151,155,171,180],"optimality,":[35],"or":[36],"simplylex-age-optimality,":[37],"evaluate":[39],"the":[40,55,67,76,101,128,133,140,160,168,178],"performance":[41],"multi-class":[43],"policies.":[46],"particular,":[48],"lex-age-optimal":[50,165],"policy":[52,88,104,163],"first":[53],"minimizes":[54],"Age":[56,93],"Information":[58],"(AoI)":[59],"metrics":[60,79],"for":[61,72,80,111,122,139,166],"high-priority":[62,73,175],"streams,":[63,74],"and":[64,98,116,137,154,177],"then,":[65],"within":[66],"set":[68],"optimal":[70],"policies":[71],"achieves":[75],"minimum":[77],"AoI":[78],"low-priority":[81,183],"streams.":[82],"propose":[84],"new":[86],"named":[89],"Preemptive":[90],"Priority,":[91],"Maximum":[92],"First,":[94],"Last-Generated,":[95],"First-Served":[96],"(PP-MAF-LGFS),":[97],"prove":[99],"that":[100],"PP-MAF-LGFS":[102,161],"is":[105,164],"lex-age-optimal.":[106],"This":[107],"result":[108],"holds":[109],"(i)":[110],"minimizing":[112,123,167],"any":[113,124],"time-dependent,":[114],"symmetric,":[115],"non-decreasing":[117,125],"penalty":[119,135,152,156],"function;":[120,136],"(ii)":[121],"functional":[126],"stochastic":[129],"process":[130],"formed":[131],"by":[132],"(iii)":[138],"cases":[141],"where":[142],"classes":[145],"have":[146],"distinct":[147],"arrival":[148],"traffic":[149],"patterns,":[150],"functions,":[153],"functionals.":[157],"For":[158],"example,":[159],"probability":[169],"violation":[172],"stream":[176],"time-average":[179],"stream.":[184],"Numerical":[185],"results":[186],"provided":[188],"illustrate":[190],"our":[191],"theoretical":[192],"findings.":[193]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2}],"updated_date":"2026-07-29T09:40:50.615796","created_date":"2025-10-10T00:00:00"}