{"id":"https://openalex.org/W4408947505","doi":"https://doi.org/10.1109/twc.2025.3552809","title":"Lyapunov-Guided Deep Reinforcement Learning for Semantic-Aware AoI Minimization in UAV-Assisted Wireless Networks","display_name":"Lyapunov-Guided Deep Reinforcement Learning for Semantic-Aware AoI Minimization in UAV-Assisted Wireless Networks","publication_year":2025,"publication_date":"2025-03-28","ids":{"openalex":"https://openalex.org/W4408947505","doi":"https://doi.org/10.1109/twc.2025.3552809"},"language":"en","primary_location":{"id":"doi:10.1109/twc.2025.3552809","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2025.3552809","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless 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/A5033147284","display_name":"Yusi Long","orcid":"https://orcid.org/0000-0002-1925-257X"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]},{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yusi Long","raw_affiliation_strings":["School of Intelligent Systems Engineering, Sun Yat-sen University, Shenzhen, China","School of Intelligent Systems Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0002-1925-257X","affiliations":[{"raw_affiliation_string":"School of Intelligent Systems Engineering, Sun Yat-sen University, Shenzhen, China","institution_ids":["https://openalex.org/I157773358"]},{"raw_affiliation_string":"School of Intelligent Systems Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China","institution_ids":["https://openalex.org/I180726961","https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5042460024","display_name":"Shimin Gong","orcid":"https://orcid.org/0000-0003-4874-8766"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]},{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shimin Gong","raw_affiliation_strings":["School of Intelligent Systems Engineering, Sun Yat-sen University, Shenzhen, China","School of Intelligent Systems Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0003-4874-8766","affiliations":[{"raw_affiliation_string":"School of Intelligent Systems Engineering, Sun Yat-sen University, Shenzhen, China","institution_ids":["https://openalex.org/I157773358"]},{"raw_affiliation_string":"School of Intelligent Systems Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China","institution_ids":["https://openalex.org/I180726961","https://openalex.org/I157773358"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100606009","display_name":"Sumei Sun","orcid":"https://orcid.org/0000-0002-1701-8122"},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Sumei Sun","raw_affiliation_strings":["Institute for Infocomm Research (I<sup>2</sup>R), A*STAR, Fusionopolis, Singapore","A*STAR, Institute for Infocomm Research (I2R), Singapore"],"raw_orcid":"https://orcid.org/0000-0002-1701-8122","affiliations":[{"raw_affiliation_string":"Institute for Infocomm Research (I<sup>2</sup>R), A*STAR, Fusionopolis, Singapore","institution_ids":["https://openalex.org/I3005327000"]},{"raw_affiliation_string":"A*STAR, Institute for Infocomm Research (I2R), Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5027953377","display_name":"Gary C.F. Lee","orcid":"https://orcid.org/0000-0003-4318-8958"},"institutions":[{"id":"https://openalex.org/I115228651","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09","country_code":"SG","type":"government","lineage":["https://openalex.org/I115228651"]},{"id":"https://openalex.org/I3005327000","display_name":"Institute for Infocomm Research","ror":"https://ror.org/053rfa017","country_code":"SG","type":"facility","lineage":["https://openalex.org/I115228651","https://openalex.org/I3005327000","https://openalex.org/I91275662"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Gary C. F. Lee","raw_affiliation_strings":["Institute for Infocomm Research (I<sup>2</sup>R), A*STAR, Fusionopolis, Singapore","A*STAR, Institute for Infocomm Research (I2R), Singapore"],"raw_orcid":"https://orcid.org/0000-0003-4318-8958","affiliations":[{"raw_affiliation_string":"Institute for Infocomm Research (I<sup>2</sup>R), A*STAR, Fusionopolis, Singapore","institution_ids":["https://openalex.org/I3005327000"]},{"raw_affiliation_string":"A*STAR, Institute for Infocomm Research (I2R), Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102727271","display_name":"Lanhua Li","orcid":"https://orcid.org/0000-0002-9403-3983"},"institutions":[{"id":"https://openalex.org/I157773358","display_name":"Sun Yat-sen University","ror":"https://ror.org/0064kty71","country_code":"CN","type":"education","lineage":["https://openalex.org/I157773358"]},{"id":"https://openalex.org/I180726961","display_name":"Shenzhen University","ror":"https://ror.org/01vy4gh70","country_code":"CN","type":"education","lineage":["https://openalex.org/I180726961"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Lanhua Li","raw_affiliation_strings":["School of Intelligent Systems Engineering, Sun Yat-sen University, Shenzhen, China","School of Intelligent Systems Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0002-9403-3983","affiliations":[{"raw_affiliation_string":"School of Intelligent Systems Engineering, Sun Yat-sen University, Shenzhen, China","institution_ids":["https://openalex.org/I157773358"]},{"raw_affiliation_string":"School of Intelligent Systems Engineering, Shenzhen Campus of Sun Yat-sen University, Shenzhen, China","institution_ids":["https://openalex.org/I180726961","https://openalex.org/I157773358"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5091266202","display_name":"Dusit Niyato","orcid":"https://orcid.org/0000-0002-7442-7416"},"institutions":[{"id":"https://openalex.org/I172675005","display_name":"Nanyang Technological University","ror":"https://ror.org/02e7b5302","country_code":"SG","type":"education","lineage":["https://openalex.org/I172675005"]}],"countries":["SG"],"is_corresponding":false,"raw_author_name":"Dusit Niyato","raw_affiliation_strings":["College of Computing and Data Science, Nanyang Technological University, Jurong West, Singapore","College of Computing and Data Science, Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-7442-7416","affiliations":[{"raw_affiliation_string":"College of Computing and Data Science, Nanyang Technological University, Jurong West, Singapore","institution_ids":["https://openalex.org/I172675005"]},{"raw_affiliation_string":"College of Computing and Data Science, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":5,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.5937,"has_fulltext":false,"cited_by_count":11,"citation_normalized_percentile":{"value":0.93392119,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":97,"max":100},"biblio":{"volume":"24","issue":"8","first_page":"6351","last_page":"6364"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.996399998664856,"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"}},"topics":[{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.996399998664856,"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/T11133","display_name":"UAV Applications and Optimization","score":0.9962000250816345,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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/T10579","display_name":"Cognitive Radio Networks and Spectrum Sensing","score":0.9941999912261963,"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":0.8012740612030029},{"id":"https://openalex.org/keywords/reinforcement-learning","display_name":"Reinforcement learning","score":0.7863560318946838},{"id":"https://openalex.org/keywords/minification","display_name":"Minification","score":0.6689717173576355},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.6381641030311584},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.50215744972229},{"id":"https://openalex.org/keywords/wireless-network","display_name":"Wireless network","score":0.5015842914581299},{"id":"https://openalex.org/keywords/lyapunov-function","display_name":"Lyapunov function","score":0.4412175416946411},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.33876341581344604},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.32577061653137207},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.1852857768535614},{"id":"https://openalex.org/keywords/world-wide-web","display_name":"World Wide Web","score":0.0680798590183258}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8012740612030029},{"id":"https://openalex.org/C97541855","wikidata":"https://www.wikidata.org/wiki/Q830687","display_name":"Reinforcement learning","level":2,"score":0.7863560318946838},{"id":"https://openalex.org/C147764199","wikidata":"https://www.wikidata.org/wiki/Q6865248","display_name":"Minification","level":2,"score":0.6689717173576355},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.6381641030311584},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.50215744972229},{"id":"https://openalex.org/C108037233","wikidata":"https://www.wikidata.org/wiki/Q11375","display_name":"Wireless network","level":3,"score":0.5015842914581299},{"id":"https://openalex.org/C60640748","wikidata":"https://www.wikidata.org/wiki/Q2337858","display_name":"Lyapunov function","level":3,"score":0.4412175416946411},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.33876341581344604},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.32577061653137207},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.1852857768535614},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0680798590183258},{"id":"https://openalex.org/C158622935","wikidata":"https://www.wikidata.org/wiki/Q660848","display_name":"Nonlinear system","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/twc.2025.3552809","is_oa":false,"landing_page_url":"https://doi.org/10.1109/twc.2025.3552809","pdf_url":null,"source":{"id":"https://openalex.org/S63459445","display_name":"IEEE Transactions on Wireless Communications","issn_l":"1536-1276","issn":["1536-1276","1558-2248"],"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 Wireless Communications","raw_type":"journal-article"},{"id":"pmh:oai:dr.ntu.edu.sg:10356/218489","is_oa":false,"landing_page_url":"https://hdl.handle.net/10356/218489","pdf_url":null,"source":{"id":"https://openalex.org/S4306402609","display_name":"DR-NTU (Nanyang Technological University)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I172675005","host_organization_name":"Nanyang Technological University","host_organization_lineage":["https://openalex.org/I172675005"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":null,"raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G1257224140","display_name":null,"funder_award_id":"62371478","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G1662393298","display_name":null,"funder_award_id":"62202506","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G269058668","display_name":null,"funder_award_id":"JCYJ20220818103201004","funder_id":"https://openalex.org/F4320329791","funder_display_name":"Shenzhen Fundamental Research Program"},{"id":"https://openalex.org/G4706725913","display_name":null,"funder_award_id":"62372488","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"},{"id":"https://openalex.org/F4320329791","display_name":"Shenzhen Fundamental Research Program","ror":null}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":36,"referenced_works":["https://openalex.org/W2038007012","https://openalex.org/W2963061782","https://openalex.org/W2963117265","https://openalex.org/W3036851434","https://openalex.org/W3111189508","https://openalex.org/W3137257456","https://openalex.org/W4205984110","https://openalex.org/W4226047696","https://openalex.org/W4294310940","https://openalex.org/W4295700726","https://openalex.org/W4312040304","https://openalex.org/W4313449066","https://openalex.org/W4315630314","https://openalex.org/W4318586293","https://openalex.org/W4382053051","https://openalex.org/W4385061690","https://openalex.org/W4385800609","https://openalex.org/W4386702744","https://openalex.org/W4386869667","https://openalex.org/W4387682238","https://openalex.org/W4387717464","https://openalex.org/W4389934515","https://openalex.org/W4390480832","https://openalex.org/W4390604928","https://openalex.org/W4391184475","https://openalex.org/W4391741350","https://openalex.org/W4391743018","https://openalex.org/W4392159277","https://openalex.org/W4392172925","https://openalex.org/W4392607789","https://openalex.org/W4394994551","https://openalex.org/W4396243197","https://openalex.org/W4399039546","https://openalex.org/W4399039829","https://openalex.org/W4399527245","https://openalex.org/W4400276040"],"related_works":["https://openalex.org/W4306904969","https://openalex.org/W2138720691","https://openalex.org/W4362501864","https://openalex.org/W4380318855","https://openalex.org/W3084456289","https://openalex.org/W2024136090","https://openalex.org/W4391331176","https://openalex.org/W2031695474","https://openalex.org/W2586732548","https://openalex.org/W2964765435"],"abstract_inverted_index":{"This":[0],"paper":[1],"investigates":[2],"an":[3],"unmanned":[4],"aerial":[5],"vehicle":[6],"(UAV)":[7],"assisted":[8],"semantic":[9,39,54,64,94,111,158,180],"network":[10],"where":[11],"the":[12,20,32,35,49,72,75,107,110,114,119,128,144,153,157,168,190],"ground":[13],"users":[14],"(GUs)":[15],"periodically":[16],"capture":[17,89],"and":[18,34,45,58,93,96,113,131,161],"upload":[19],"sensing":[21],"information":[22,40,55,60,65,91],"to":[23,48,88,139],"a":[24,82,99,123],"base":[25],"station":[26],"(BS)":[27],"via":[28,127],"UAVs\u2019":[29,115,162],"relaying.":[30],"Both":[31],"GUs":[33],"UAVs":[36],"can":[37],"extract":[38],"from":[41],"large-size":[42],"raw":[43],"data":[44,69],"transmit":[46],"it":[47,175],"BS":[50],"for":[51],"recovery.":[52],"Smaller-size":[53],"reduces":[56],"latency":[57],"improves":[59,171],"freshness,":[61],"while":[62,182],"larger-size":[63],"enables":[66],"more":[67],"accurate":[68],"reconstruction":[70],"at":[71],"BS,":[73],"preserving":[74],"value":[76],"of":[77,125,186],"original":[78,120,187],"information.":[79],"We":[80,117],"introduce":[81],"novel":[83],"semantic-aware":[84],"age-of-information":[85],"(SAoI)":[86],"metric":[87],"both":[90],"freshness":[92],"importance,":[95],"then":[97,132],"formulate":[98],"time-averaged":[100],"SAoI":[101],"minimization":[102],"problem":[103,121],"by":[104,149,152],"jointly":[105],"optimizing":[106],"UAV-GU":[108,145],"association,":[109],"extraction,":[112],"trajectories.":[116],"decouple":[118],"into":[122],"series":[124],"subproblems":[126],"Lyapunov":[129],"framework":[130],"use":[133],"hierarchical":[134,169],"deep":[135],"reinforcement":[136],"learning":[137,172],"(DRL)":[138],"solve":[140],"each":[141],"subproblem.":[142],"Specifically,":[143],"association":[146],"is":[147],"determined":[148],"DRL,":[150],"followed":[151],"optimization":[154],"module":[155],"updating":[156],"extraction":[159,181],"strategy":[160],"deployment.":[163],"Simulation":[164],"results":[165],"show":[166],"that":[167],"structure":[170],"efficiency.":[173],"Moreover,":[174],"achieves":[176],"low":[177],"AoI":[178],"through":[179],"ensuring":[183],"minimal":[184],"loss":[185],"information,":[188],"outperforming":[189],"existing":[191],"baselines.":[192]},"counts_by_year":[{"year":2026,"cited_by_count":7},{"year":2025,"cited_by_count":4}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}
