{"id":"https://openalex.org/W3118048315","doi":"https://doi.org/10.1109/jiot.2020.3047665","title":"Age-Optimal Transmission Policy With HARQ for Freshness-Critical Vehicular Status Updates in Space\u2013Air\u2013Ground-Integrated Networks","display_name":"Age-Optimal Transmission Policy With HARQ for Freshness-Critical Vehicular Status Updates in Space\u2013Air\u2013Ground-Integrated Networks","publication_year":2020,"publication_date":"2020-12-28","ids":{"openalex":"https://openalex.org/W3118048315","doi":"https://doi.org/10.1109/jiot.2020.3047665","mag":"3118048315"},"language":"en","primary_location":{"id":"doi:10.1109/jiot.2020.3047665","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2020.3047665","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"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 Internet of Things Journal","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/A5071183657","display_name":"Ying Wang","orcid":"https://orcid.org/0000-0002-0356-3998"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]},{"id":"https://openalex.org/I4210136793","display_name":"Peng Cheng Laboratory","ror":"https://ror.org/03qdqbt06","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210136793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ying Wang","raw_affiliation_strings":["School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0002-0356-3998","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","institution_ids":["https://openalex.org/I204983213"]},{"raw_affiliation_string":"Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China","institution_ids":["https://openalex.org/I4210136793"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100684143","display_name":"Shaohua Wu","orcid":"https://orcid.org/0000-0002-6950-0594"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]},{"id":"https://openalex.org/I4210136793","display_name":"Peng Cheng Laboratory","ror":"https://ror.org/03qdqbt06","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210136793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Shaohua Wu","raw_affiliation_strings":["School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0002-6950-0594","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","institution_ids":["https://openalex.org/I204983213"]},{"raw_affiliation_string":"Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China","institution_ids":["https://openalex.org/I4210136793"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5047916298","display_name":"Jian Jiao","orcid":"https://orcid.org/0000-0002-7988-9820"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]},{"id":"https://openalex.org/I4210136793","display_name":"Peng Cheng Laboratory","ror":"https://ror.org/03qdqbt06","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210136793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jian Jiao","raw_affiliation_strings":["School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0002-7988-9820","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","institution_ids":["https://openalex.org/I204983213"]},{"raw_affiliation_string":"Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China","institution_ids":["https://openalex.org/I4210136793"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074854979","display_name":"Wen Wu","orcid":"https://orcid.org/0000-0002-0458-1282"},"institutions":[{"id":"https://openalex.org/I151746483","display_name":"University of Waterloo","ror":"https://ror.org/01aff2v68","country_code":"CA","type":"education","lineage":["https://openalex.org/I151746483"]}],"countries":["CA"],"is_corresponding":false,"raw_author_name":"Wen Wu","raw_affiliation_strings":["Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada"],"raw_orcid":"https://orcid.org/0000-0002-0458-1282","affiliations":[{"raw_affiliation_string":"Department of Electrical and Computer Engineering, University of Waterloo, Waterloo, ON, Canada","institution_ids":["https://openalex.org/I151746483"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5100423438","display_name":"Ye Wang","orcid":"https://orcid.org/0000-0002-0464-9136"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]},{"id":"https://openalex.org/I4210136793","display_name":"Peng Cheng Laboratory","ror":"https://ror.org/03qdqbt06","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210136793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Ye Wang","raw_affiliation_strings":["School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0002-0464-9136","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","institution_ids":["https://openalex.org/I204983213"]},{"raw_affiliation_string":"Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China","institution_ids":["https://openalex.org/I4210136793"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5071725895","display_name":"Qinyu Zhang","orcid":"https://orcid.org/0000-0001-9272-0475"},"institutions":[{"id":"https://openalex.org/I204983213","display_name":"Harbin Institute of Technology","ror":"https://ror.org/01yqg2h08","country_code":"CN","type":"education","lineage":["https://openalex.org/I204983213"]},{"id":"https://openalex.org/I4210136793","display_name":"Peng Cheng Laboratory","ror":"https://ror.org/03qdqbt06","country_code":"CN","type":"facility","lineage":["https://openalex.org/I4210136793"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Qinyu Zhang","raw_affiliation_strings":["School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China"],"raw_orcid":"https://orcid.org/0000-0001-9272-0475","affiliations":[{"raw_affiliation_string":"School of Electronics and Information Engineering, Harbin Institute of Technology (Shenzhen), Shenzhen, China","institution_ids":["https://openalex.org/I204983213"]},{"raw_affiliation_string":"Research Center of Networks and Communications, Peng Cheng Laboratory, Shenzhen, China","institution_ids":["https://openalex.org/I4210136793"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":6,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":2.5932,"has_fulltext":false,"cited_by_count":24,"citation_normalized_percentile":{"value":0.90507409,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":94,"max":99},"biblio":{"volume":"9","issue":"8","first_page":"5719","last_page":"5729"},"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/T11631","display_name":"Retirement, Disability, and Employment","score":0.9656999707221985,"subfield":{"id":"https://openalex.org/subfields/3317","display_name":"Demography"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}},{"id":"https://openalex.org/T12079","display_name":"IoT Networks and Protocols","score":0.9538000226020813,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.6808228492736816},{"id":"https://openalex.org/keywords/hybrid-automatic-repeat-request","display_name":"Hybrid automatic repeat request","score":0.6211581230163574},{"id":"https://openalex.org/keywords/transmission","display_name":"Transmission (telecommunications)","score":0.49718955159187317},{"id":"https://openalex.org/keywords/atmospheric-model","display_name":"Atmospheric model","score":0.4344554543495178},{"id":"https://openalex.org/keywords/space","display_name":"Space (punctuation)","score":0.42048293352127075},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.2816374897956848},{"id":"https://openalex.org/keywords/meteorology","display_name":"Meteorology","score":0.1500222384929657},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.0886315107345581}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.6808228492736816},{"id":"https://openalex.org/C118437007","wikidata":"https://www.wikidata.org/wiki/Q1017139","display_name":"Hybrid automatic repeat request","level":3,"score":0.6211581230163574},{"id":"https://openalex.org/C761482","wikidata":"https://www.wikidata.org/wiki/Q118093","display_name":"Transmission (telecommunications)","level":2,"score":0.49718955159187317},{"id":"https://openalex.org/C118365302","wikidata":"https://www.wikidata.org/wiki/Q4817115","display_name":"Atmospheric model","level":2,"score":0.4344554543495178},{"id":"https://openalex.org/C2778572836","wikidata":"https://www.wikidata.org/wiki/Q380933","display_name":"Space (punctuation)","level":2,"score":0.42048293352127075},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.2816374897956848},{"id":"https://openalex.org/C153294291","wikidata":"https://www.wikidata.org/wiki/Q25261","display_name":"Meteorology","level":1,"score":0.1500222384929657},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0886315107345581},{"id":"https://openalex.org/C111919701","wikidata":"https://www.wikidata.org/wiki/Q9135","display_name":"Operating system","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jiot.2020.3047665","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2020.3047665","pdf_url":null,"source":{"id":"https://openalex.org/S2480266640","display_name":"IEEE Internet of Things Journal","issn_l":"2327-4662","issn":["2327-4662","2372-2541"],"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 Internet of Things Journal","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[{"id":"https://metadata.un.org/sdg/16","display_name":"Peace, Justice and strong institutions","score":0.7300000190734863}],"awards":[{"id":"https://openalex.org/G1128914496","display_name":null,"funder_award_id":"61371102","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G2246487800","display_name":"\u4fe1\u606f\u65f6\u6548\u7ea6\u675f\u4e0b\u7684\u6df1\u7a7a\u6d4b\u63a7\u901a\u4fe1\u4f20\u8f93\u6280\u672f\u7814\u7a76","funder_award_id":"61871147","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G3658063426","display_name":null,"funder_award_id":"61831008","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6900373139","display_name":null,"funder_award_id":"2016TX03X226","funder_id":"https://openalex.org/F4320336642","funder_display_name":"Guangdong Special Support Plan"},{"id":"https://openalex.org/G8324257936","display_name":null,"funder_award_id":"61525103","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8375930484","display_name":"\u7a7a\u95f4\u7269\u8054\u7f51\u7684\u4fe1\u606f\u65f6\u6548\u4e0e\u5927\u89c4\u6a21\u63a5\u5165\u6280\u672f\u7814\u7a76","funder_award_id":"62071141","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/F4320336642","display_name":"Guangdong Special Support Plan","ror":null}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":32,"referenced_works":["https://openalex.org/W1536930200","https://openalex.org/W1657522846","https://openalex.org/W1919404870","https://openalex.org/W1970679118","https://openalex.org/W1993918491","https://openalex.org/W2032233621","https://openalex.org/W2066786775","https://openalex.org/W2100739124","https://openalex.org/W2126185096","https://openalex.org/W2146487252","https://openalex.org/W2170861859","https://openalex.org/W2244993499","https://openalex.org/W2604436698","https://openalex.org/W2612100624","https://openalex.org/W2786588435","https://openalex.org/W2902105255","https://openalex.org/W2905236430","https://openalex.org/W2924948991","https://openalex.org/W2942747117","https://openalex.org/W2952896628","https://openalex.org/W2960308605","https://openalex.org/W2962869906","https://openalex.org/W2963270598","https://openalex.org/W2963696760","https://openalex.org/W2963857659","https://openalex.org/W2963869148","https://openalex.org/W2964222997","https://openalex.org/W3003589928","https://openalex.org/W3036142544","https://openalex.org/W4205984110","https://openalex.org/W4213251304","https://openalex.org/W4298177619"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2899084033","https://openalex.org/W2748952813","https://openalex.org/W4391128921","https://openalex.org/W2093805614","https://openalex.org/W2160687205","https://openalex.org/W3117231723","https://openalex.org/W2936301543","https://openalex.org/W2378499691","https://openalex.org/W4287639438"],"abstract_inverted_index":{"In":[0,83],"this":[1,84],"article,":[2],"we":[3,146,173],"investigate":[4],"the":[5,8,17,32,48,51,77,81,100,104,113,118,122,136,142,156,176,187,193,196,200,205],"freshness":[6],"of":[7,41,50,121,195],"vehicular":[9],"status":[10,18,52],"updates":[11,19,101],"in":[12,80,112,169],"space&#x2013;air&#x2013;ground-integrated":[13],"networks":[14],"(SAGINs),":[15],"where":[16],"are":[20,71],"generated":[21],"by":[22],"sampling":[23],"a":[24,148],"fixed-rate":[25],"dynamic":[26],"Markov":[27,149],"process":[28,151],"and":[29,65,153,164,182],"delivered":[30],"to":[31,46,75,98,116,185],"monitor":[33],"over":[34,199],"an":[35,87],"unreliable":[36],"channel":[37],"instantaneously.":[38],"The":[39,189],"Age":[40],"Information":[42],"(AoI)":[43],"is":[44,89,110],"adopted":[45],"capture":[47],"timeliness":[49],"updates.":[53],"Two":[54],"hybrid":[55],"automatic":[56],"repeat":[57],"request":[58],"(HARQ)":[59],"schemes,":[60],"namely,":[61],"classical":[62,161,201],"HARQ":[63,68,162,202],"scheme":[64,109,163,166,198,203],"incremental":[66],"redundancy":[67],"(IR-HARQ)":[69],"scheme,":[70],"taken":[72],"into":[73],"consideration":[74],"combat":[76],"errors":[78],"occurred":[79],"transmission.":[82],"setting,":[85],"once":[86],"update":[88,128],"not":[90],"decoded":[91],"successfully,":[92],"one":[93],"should":[94],"carefully":[95],"decide":[96],"how":[97],"schedule":[99],"for":[102,160],"optimizing":[103],"AoI.":[105,188],"Especially,":[106],"differential":[107,125,137,179],"encoding":[108,138,180],"introduced":[111],"considered":[114],"system":[115],"exploit":[117],"temporal":[119],"correlations":[120],"source.":[123],"By":[124],"encoding,":[126],"each":[127],"can":[129],"be":[130],"actual":[131],"or":[132],"differential,":[133],"based":[134],"on":[135],"level.":[139],"To":[140],"minimize":[141,186],"long-term":[143],"average":[144],"age,":[145],"formulate":[147],"decision":[150],"(MDP),":[152],"prove":[154],"that":[155],"optimal":[157],"transmission":[158],"policies":[159],"IR-HARQ":[165,197],"behave":[167],"differently":[168],"threshold":[170],"structures.":[171],"Furthermore,":[172],"jointly":[174],"optimize":[175],"codeword":[177],"length,":[178],"level,":[181],"retransmission":[183],"times":[184],"performance":[190],"comparison":[191],"shows":[192],"advantages":[194],"from":[204],"age":[206],"perspective.":[207]},"counts_by_year":[{"year":2025,"cited_by_count":2},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":7},{"year":2022,"cited_by_count":7},{"year":2021,"cited_by_count":2}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2025-10-10T00:00:00"}
