{"id":"https://openalex.org/W4362683620","doi":"https://doi.org/10.1109/tcomm.2023.3265091","title":"Optimizing Age of Information in Wireless Uplink Networks With Partial Observations","display_name":"Optimizing Age of Information in Wireless Uplink Networks With Partial Observations","publication_year":2023,"publication_date":"2023-04-06","ids":{"openalex":"https://openalex.org/W4362683620","doi":"https://doi.org/10.1109/tcomm.2023.3265091"},"language":"en","primary_location":{"id":"doi:10.1109/tcomm.2023.3265091","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2023.3265091","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/A5100326776","display_name":"Jingwei Liu","orcid":"https://orcid.org/0000-0003-1981-0436"},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":true,"raw_author_name":"Jingwei Liu","raw_affiliation_strings":["Department of Information Engineering, The Chinese University of Hong Kong, Hong Kong, SAR, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Information Engineering, The Chinese University of Hong Kong, Hong Kong, SAR, China","institution_ids":["https://openalex.org/I177725633"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100422148","display_name":"Rui Zhang","orcid":"https://orcid.org/0000-0003-1870-3727"},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"Rui Zhang","raw_affiliation_strings":["Department of Information Engineering, The Chinese University of Hong Kong, Hong Kong, SAR, China"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Information Engineering, The Chinese University of Hong Kong, Hong Kong, SAR, China","institution_ids":["https://openalex.org/I177725633"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5089564679","display_name":"Aoyu Gong","orcid":null},"institutions":[{"id":"https://openalex.org/I5124864","display_name":"\u00c9cole Polytechnique F\u00e9d\u00e9rale de Lausanne","ror":"https://ror.org/02s376052","country_code":"CH","type":"education","lineage":["https://openalex.org/I2799323385","https://openalex.org/I5124864"]}],"countries":["CH"],"is_corresponding":false,"raw_author_name":"Aoyu Gong","raw_affiliation_strings":["School of Computer and Communication Sciences, &#x00C9;cole Polytechnique F&#x00E9;d&#x00E9;rale de Lausanne, Lausanne, Switzerland"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"School of Computer and Communication Sciences, &#x00C9;cole Polytechnique F&#x00E9;d&#x00E9;rale de Lausanne, Lausanne, Switzerland","institution_ids":["https://openalex.org/I5124864"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5100327671","display_name":"He Chen","orcid":"https://orcid.org/0000-0001-8886-9680"},"institutions":[{"id":"https://openalex.org/I177725633","display_name":"Chinese University of Hong Kong","ror":"https://ror.org/00t33hh48","country_code":"HK","type":"education","lineage":["https://openalex.org/I177725633"]}],"countries":["HK"],"is_corresponding":false,"raw_author_name":"He Chen","raw_affiliation_strings":["Department of Information Engineering, The Chinese University of Hong Kong, Hong Kong, SAR, China"],"raw_orcid":"https://orcid.org/0000-0001-8886-9680","affiliations":[{"raw_affiliation_string":"Department of Information Engineering, The Chinese University of Hong Kong, Hong Kong, SAR, China","institution_ids":["https://openalex.org/I177725633"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":4,"corresponding_author_ids":["https://openalex.org/A5100326776"],"corresponding_institution_ids":["https://openalex.org/I177725633"],"apc_list":null,"apc_paid":null,"fwci":2.7545,"has_fulltext":false,"cited_by_count":15,"citation_normalized_percentile":{"value":0.90647058,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":90,"max":98},"biblio":{"volume":"71","issue":"7","first_page":"4105","last_page":"4118"},"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/T10300","display_name":"Congenital Heart Disease Studies","score":0.9846000075340271,"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"}},{"id":"https://openalex.org/T11993","display_name":"Atomic and Subatomic Physics Research","score":0.9300000071525574,"subfield":{"id":"https://openalex.org/subfields/3107","display_name":"Atomic and Molecular Physics, and Optics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/partially-observable-markov-decision-process","display_name":"Partially observable Markov decision process","score":0.8150627613067627},{"id":"https://openalex.org/keywords/markov-decision-process","display_name":"Markov decision process","score":0.6818748712539673},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6803339719772339},{"id":"https://openalex.org/keywords/telecommunications-link","display_name":"Telecommunications link","score":0.6275141835212708},{"id":"https://openalex.org/keywords/scheduling","display_name":"Scheduling (production processes)","score":0.5453221201896667},{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.49036550521850586},{"id":"https://openalex.org/keywords/markov-chain","display_name":"Markov chain","score":0.42514997720718384},{"id":"https://openalex.org/keywords/mathematical-optimization","display_name":"Mathematical optimization","score":0.4051051139831543},{"id":"https://openalex.org/keywords/markov-process","display_name":"Markov process","score":0.394822895526886},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2991192042827606},{"id":"https://openalex.org/keywords/markov-model","display_name":"Markov model","score":0.2445182204246521},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.21094703674316406},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.12560543417930603}],"concepts":[{"id":"https://openalex.org/C17098449","wikidata":"https://www.wikidata.org/wiki/Q176814","display_name":"Partially observable Markov decision process","level":4,"score":0.8150627613067627},{"id":"https://openalex.org/C106189395","wikidata":"https://www.wikidata.org/wiki/Q176789","display_name":"Markov decision process","level":3,"score":0.6818748712539673},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6803339719772339},{"id":"https://openalex.org/C138660444","wikidata":"https://www.wikidata.org/wiki/Q5607897","display_name":"Telecommunications link","level":2,"score":0.6275141835212708},{"id":"https://openalex.org/C206729178","wikidata":"https://www.wikidata.org/wiki/Q2271896","display_name":"Scheduling (production processes)","level":2,"score":0.5453221201896667},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.49036550521850586},{"id":"https://openalex.org/C98763669","wikidata":"https://www.wikidata.org/wiki/Q176645","display_name":"Markov chain","level":2,"score":0.42514997720718384},{"id":"https://openalex.org/C126255220","wikidata":"https://www.wikidata.org/wiki/Q141495","display_name":"Mathematical optimization","level":1,"score":0.4051051139831543},{"id":"https://openalex.org/C159886148","wikidata":"https://www.wikidata.org/wiki/Q176645","display_name":"Markov process","level":2,"score":0.394822895526886},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2991192042827606},{"id":"https://openalex.org/C163836022","wikidata":"https://www.wikidata.org/wiki/Q6771326","display_name":"Markov model","level":3,"score":0.2445182204246521},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.21094703674316406},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.12560543417930603},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/tcomm.2023.3265091","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tcomm.2023.3265091","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"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Peace, Justice and strong institutions","score":0.7900000214576721,"id":"https://metadata.un.org/sdg/16"}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":49,"referenced_works":["https://openalex.org/W1549519846","https://openalex.org/W1919404870","https://openalex.org/W1993918491","https://openalex.org/W2032100464","https://openalex.org/W2039479710","https://openalex.org/W2137152139","https://openalex.org/W2146487252","https://openalex.org/W2168359464","https://openalex.org/W2364839527","https://openalex.org/W2483031468","https://openalex.org/W2567921381","https://openalex.org/W2744248483","https://openalex.org/W2763786603","https://openalex.org/W2791487310","https://openalex.org/W2813271351","https://openalex.org/W2825335763","https://openalex.org/W2848871090","https://openalex.org/W2917892872","https://openalex.org/W2944580845","https://openalex.org/W2950483503","https://openalex.org/W2963053102","https://openalex.org/W2963085502","https://openalex.org/W2963137920","https://openalex.org/W2963270598","https://openalex.org/W2969447045","https://openalex.org/W2974930049","https://openalex.org/W2977041145","https://openalex.org/W2995433474","https://openalex.org/W2995485083","https://openalex.org/W2996238281","https://openalex.org/W2998881388","https://openalex.org/W3003589928","https://openalex.org/W3007091509","https://openalex.org/W3022375530","https://openalex.org/W3097680142","https://openalex.org/W3132341739","https://openalex.org/W3138649231","https://openalex.org/W3160249156","https://openalex.org/W3176620738","https://openalex.org/W3197912532","https://openalex.org/W3198713257","https://openalex.org/W3211245791","https://openalex.org/W4205984110","https://openalex.org/W4211024811","https://openalex.org/W4362683620","https://openalex.org/W6633657698","https://openalex.org/W6776760385","https://openalex.org/W6784620602","https://openalex.org/W6809997632"],"related_works":["https://openalex.org/W2096013579","https://openalex.org/W1589140671","https://openalex.org/W1760611253","https://openalex.org/W52153049","https://openalex.org/W2951545791","https://openalex.org/W1515117609","https://openalex.org/W2294884454","https://openalex.org/W4323315247","https://openalex.org/W3169161914","https://openalex.org/W4321379664"],"abstract_inverted_index":{"This":[0],"paper":[1],"considers":[2],"a":[3,20,100,108,197,207,251],"wireless":[4],"uplink":[5],"network":[6],"consisting":[7],"of":[8,46,59,68,83,86,133,139,155,174,232,284,289],"multiple":[9],"end":[10,73,93,291],"devices":[11,48,94],"and":[12,28,162,264,274],"an":[13,120],"access":[14],"point":[15],"(AP).":[16],"Each":[17],"device":[18],"monitors":[19],"physical":[21],"process":[22,113,125],"with":[23,250],"randomly":[24],"generated":[25],"status":[26,70,89,176],"updates":[27,71],"sends":[29],"these":[30,47],"update":[31,90,177],"packets":[32,91],"to":[33,42,49,64,150,160,185,281],"the":[34,37,44,51,57,65,69,75,87,117,134,137,140,153,172,175,187,202,218,228,233,239,243,257,267,271,282,285],"AP":[35,40,76],"in":[36,144,256],"uplink.":[38],"The":[39,142],"aims":[41],"schedule":[43],"transmissions":[45],"optimize":[50],"network-wide":[52],"information":[53,60],"freshness,":[54],"quantified":[55],"by":[56,127,169,196,246],"age":[58],"(AoI)":[61],"metric.":[62],"Due":[63],"stochastic":[66],"arrival":[67,178,287],"at":[72,92],"devices,":[74],"only":[77],"has":[78],"<italic":[79],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[80],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">partial":[81],"observations</i>":[82],"system":[84],"times":[85],"latest":[88],"when":[95],"making":[96],"scheduling":[97,209,221],"decisions.":[98],"Such":[99],"decision-making":[101],"problem":[102],"can":[103,158],"be":[104],"naturally":[105],"formulated":[106,219],"as":[107,136,152],"partially":[109],"observable":[110,130,277],"Markov":[111,123],"decision":[112,124],"(POMDP).":[114],"We":[115,223,237],"reformulate":[116],"POMDP":[118,135],"into":[119],"equivalent":[121],"belief":[122,131,164],"(belief-MDP),":[126],"defining":[128],"fully":[129,276],"states":[132,138,157],"belief-MDP.":[141],"belief-MDP":[143,188],"its":[145,156,163,248,275],"original":[146],"form":[147],"is":[148,166,194,279],"difficult":[149],"solve":[151],"dimension":[154],"go":[159],"infinity":[161],"space":[165],"uncountable.":[167],"Fortunately,":[168],"carefully":[170],"leveraging":[171],"properties":[173],"processes":[179],"(i.e.,":[180],"Bernoulli":[181],"processes),":[182],"we":[183,205],"manage":[184],"simplify":[186],"substantially,":[189],"where":[190],"every":[191],"feasible":[192],"state":[193],"characterized":[195],"two-dimensional":[198],"vector.":[199],"Based":[200],"on":[201],"simplified":[203],"belief-MDP,":[204],"devise":[206],"low-complexity":[208],"policy,":[210,216],"termed":[211],"Partially":[212],"Observing":[213],"Max-Weight":[214],"(POMW)":[215],"for":[217,227,242],"AoI-oriented":[220],"problem.":[222],"derive":[224],"upper":[225],"bounds":[226],"time-average":[229],"AoI":[230],"performance":[231,240,249,268],"proposed":[234],"POMW":[235,244,272],"policy.":[236],"analyze":[238],"guarantee":[241],"policy":[245,273],"comparing":[247],"universal":[252],"lower":[253],"bound":[254],"available":[255],"literature.":[258],"Numerical":[259],"results":[260],"validate":[261],"our":[262],"analyses":[263],"demonstrate":[265],"that":[266],"gap":[269],"between":[270],"counterpart":[278],"proportional":[280],"inverse":[283],"lowest":[286],"rate":[288],"all":[290],"devices.":[292]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":5},{"year":2023,"cited_by_count":6},{"year":2022,"cited_by_count":1}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}