{"id":"https://openalex.org/W3139493159","doi":"https://doi.org/10.1109/jsac.2021.3065065","title":"On the Minimum Average Age of Information in IRSA for Grant-Free mMTC","display_name":"On the Minimum Average Age of Information in IRSA for Grant-Free mMTC","publication_year":2021,"publication_date":"2021-03-11","ids":{"openalex":"https://openalex.org/W3139493159","doi":"https://doi.org/10.1109/jsac.2021.3065065","mag":"3139493159"},"language":"en","primary_location":{"id":"doi:10.1109/jsac.2021.3065065","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2021.3065065","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"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 Journal on Selected Areas in 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/A5062212245","display_name":"Subham Saha","orcid":"https://orcid.org/0000-0002-8314-299X"},"institutions":[{"id":"https://openalex.org/I882761360","display_name":"Indian Institute of Space Science and Technology","ror":"https://ror.org/05k37ht14","country_code":"IN","type":"education","lineage":["https://openalex.org/I882761360"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Subham Saha","raw_affiliation_strings":["Department of Avionics, Indian Institute of Space Science and Technology, Thiruvananthapuram, India"],"affiliations":[{"raw_affiliation_string":"Department of Avionics, Indian Institute of Space Science and Technology, Thiruvananthapuram, India","institution_ids":["https://openalex.org/I882761360"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5050800773","display_name":"Vineeth Bala Sukumaran","orcid":null},"institutions":[{"id":"https://openalex.org/I882761360","display_name":"Indian Institute of Space Science and Technology","ror":"https://ror.org/05k37ht14","country_code":"IN","type":"education","lineage":["https://openalex.org/I882761360"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Vineeth Bala Sukumaran","raw_affiliation_strings":["Department of Avionics, Indian Institute of Space Science and Technology, Thiruvananthapuram, India"],"affiliations":[{"raw_affiliation_string":"Department of Avionics, Indian Institute of Space Science and Technology, Thiruvananthapuram, India","institution_ids":["https://openalex.org/I882761360"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5052103809","display_name":"Chandra R. Murthy","orcid":"https://orcid.org/0000-0003-4901-9434"},"institutions":[{"id":"https://openalex.org/I59270414","display_name":"Indian Institute of Science Bangalore","ror":"https://ror.org/04dese585","country_code":"IN","type":"education","lineage":["https://openalex.org/I59270414"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Chandra R. Murthy","raw_affiliation_strings":["Department of ECE, Indian Institute of Science, Bengaluru, India"],"affiliations":[{"raw_affiliation_string":"Department of ECE, Indian Institute of Science, Bengaluru, India","institution_ids":["https://openalex.org/I59270414"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5062212245"],"corresponding_institution_ids":["https://openalex.org/I882761360"],"apc_list":null,"apc_paid":null,"fwci":4.938,"has_fulltext":false,"cited_by_count":37,"citation_normalized_percentile":{"value":0.95201971,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":99},"biblio":{"volume":"39","issue":"5","first_page":"1441","last_page":"1455"},"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":0.9977999925613403,"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":0.9416999816894531,"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/computer-science","display_name":"Computer science","score":0.7678413391113281},{"id":"https://openalex.org/keywords/frame","display_name":"Frame (networking)","score":0.7503528594970703},{"id":"https://openalex.org/keywords/network-packet","display_name":"Network packet","score":0.7062669992446899},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.5950548648834229},{"id":"https://openalex.org/keywords/aloha","display_name":"Aloha","score":0.5937477350234985},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.4439292848110199},{"id":"https://openalex.org/keywords/function","display_name":"Function (biology)","score":0.41962379217147827},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.40477603673934937},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.32570046186447144},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.25743991136550903},{"id":"https://openalex.org/keywords/throughput","display_name":"Throughput","score":0.22499710321426392},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.12621593475341797}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7678413391113281},{"id":"https://openalex.org/C126042441","wikidata":"https://www.wikidata.org/wiki/Q1324888","display_name":"Frame (networking)","level":2,"score":0.7503528594970703},{"id":"https://openalex.org/C158379750","wikidata":"https://www.wikidata.org/wiki/Q214111","display_name":"Network packet","level":2,"score":0.7062669992446899},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.5950548648834229},{"id":"https://openalex.org/C2776398200","wikidata":"https://www.wikidata.org/wiki/Q508880","display_name":"Aloha","level":4,"score":0.5937477350234985},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.4439292848110199},{"id":"https://openalex.org/C14036430","wikidata":"https://www.wikidata.org/wiki/Q3736076","display_name":"Function (biology)","level":2,"score":0.41962379217147827},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.40477603673934937},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.32570046186447144},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.25743991136550903},{"id":"https://openalex.org/C157764524","wikidata":"https://www.wikidata.org/wiki/Q1383412","display_name":"Throughput","level":3,"score":0.22499710321426392},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.12621593475341797},{"id":"https://openalex.org/C78458016","wikidata":"https://www.wikidata.org/wiki/Q840400","display_name":"Evolutionary biology","level":1,"score":0.0},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/jsac.2021.3065065","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jsac.2021.3065065","pdf_url":null,"source":{"id":"https://openalex.org/S90422530","display_name":"IEEE Journal on Selected Areas in Communications","issn_l":"0733-8716","issn":["0733-8716","1558-0008"],"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 Journal on Selected Areas in Communications","raw_type":"journal-article"},{"id":"pmh:oai::80515","is_oa":false,"landing_page_url":null,"pdf_url":null,"source":{"id":"https://openalex.org/S4306401702","display_name":"Universitas Pasundan institutional repositories & scientific journals (Universitas Pasundan)","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"host_organization":"https://openalex.org/I4210159629","host_organization_name":"Universitas Pasundan","host_organization_lineage":["https://openalex.org/I4210159629"],"host_organization_lineage_names":[],"type":"repository"},"license":null,"license_id":null,"version":"acceptedVersion","is_accepted":true,"is_published":false,"raw_source_name":"","raw_type":"Journal Article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":31,"referenced_works":["https://openalex.org/W1536930200","https://openalex.org/W1589375348","https://openalex.org/W1595159159","https://openalex.org/W1969441826","https://openalex.org/W1993918491","https://openalex.org/W2090706238","https://openalex.org/W2108659721","https://openalex.org/W2127820195","https://openalex.org/W2131489444","https://openalex.org/W2137699000","https://openalex.org/W2164902512","https://openalex.org/W2740392111","https://openalex.org/W2773795043","https://openalex.org/W2799130876","https://openalex.org/W2914989796","https://openalex.org/W2949681263","https://openalex.org/W2963976574","https://openalex.org/W2964288330","https://openalex.org/W2969102333","https://openalex.org/W2970282662","https://openalex.org/W2970983057","https://openalex.org/W2993095415","https://openalex.org/W2995358840","https://openalex.org/W3015110042","https://openalex.org/W3048482018","https://openalex.org/W3080232313","https://openalex.org/W3103351902","https://openalex.org/W3122177449","https://openalex.org/W4211024811","https://openalex.org/W6770597027","https://openalex.org/W6775969238"],"related_works":["https://openalex.org/W2354394296","https://openalex.org/W2546631405","https://openalex.org/W2371389691","https://openalex.org/W2360818723","https://openalex.org/W2383760347","https://openalex.org/W2032144233","https://openalex.org/W2351436954","https://openalex.org/W2386918788","https://openalex.org/W2137324530","https://openalex.org/W2100134104"],"abstract_inverted_index":{"We":[0,55,90,166,237],"consider":[1,168],"the":[2,6,16,34,40,46,50,66,75,78,95,107,115,128,137,149,169,177,186,198,216,223,230,254,258,280],"optimal":[3,242,295],"design":[4],"of":[5,19,39,42,53,68,77,97,110,122,130,132,171,218],"frame-based":[7],"irregular":[8],"repetition":[9,51,182,247,274],"slotted":[10],"ALOHA":[11],"(IRSA)":[12],"protocol":[13],"for":[14,59,184,276],"minimizing":[15,172,290],"average":[17,108],"age":[18,109],"information":[20],"(AAoI)":[21],"in":[22,82,87,279],"grant-free":[23],"massive":[24],"machine-type":[25],"communications":[26],"(mMTC).":[27],"To":[28],"this":[29,57],"end,":[30],"we":[31,228,261,284],"first":[32,85,139],"characterize":[33,94,229],"AAoI":[35,96,138,173,231,277,289],"as":[36,119,127,220,222],"a":[37,88,98,120,155,240,264,269],"function":[38,121,200],"number":[41,131,217],"user":[43],"elements":[44],"(UEs),":[45],"frame":[47,69,79,135,224],"duration,":[48],"and":[49,70,93,151,181,189,203,234,246,273],"distribution":[52,183,248,275],"IRSA.":[54],"present":[56],"characterization":[58],"IRSA":[60],"schemes":[61,291],"with":[62],"packet":[63,71,101,160],"recovery":[64,102,161,190],"at":[65,74],"end":[67],"generation":[72],"either":[73],"beginning":[76],"or":[80],"just":[81],"time":[83],"before":[84],"transmission":[86],"frame.":[89],"also":[91,238,262],"propose":[92,263],"novel":[99],"early":[100],"method":[103],"which":[104],"further":[105],"reduces":[106],"information.":[111],"In":[112,211],"all":[113,185],"cases,":[114],"analysis":[116],"reveals":[117],"that,":[118],"normalized":[123,178,243,270],"channel":[124,179,244,271],"traffic":[125,180,245,272],"(defined":[126],"ratio":[129],"UEs":[133,219],"to":[134,143,159,267],"duration),":[136],"decreases":[140],"linearly":[141],"due":[142,158],"more":[144],"frequent":[145],"updates":[146],"received":[147],"from":[148,257],"UEs,":[150],"increases":[152],"sharply":[153],"beyond":[154],"critical":[156],"point":[157],"failures":[162],"caused":[163],"by":[164,174],"collisions.":[165],"then":[167],"problem":[170,194],"optimizing":[175],"over":[176],"proposed":[187],"sampling":[188],"schemes.":[191,296],"The":[192],"optimization":[193],"is":[195,201,226],"challenging":[196],"since":[197],"objective":[199],"semi-analytical":[202],"can":[204],"only":[205],"be":[206],"completely":[207],"characterized":[208],"using":[209,232,249],"simulations.":[210],"an":[212],"asymptotic":[213,259],"regime":[214],"where":[215],"well":[221],"size":[225],"large,":[227],"upper":[233],"lower":[235],"bounds.":[236],"obtain":[239,268],"locally":[241],"differential":[250],"evolution.":[251],"Based":[252],"on":[253],"insights":[255],"obtained":[256],"analysis,":[260],"pragmatic":[265],"approach":[266],"reduction":[278],"non-asymptotic":[281],"case.":[282],"Finally,":[283],"empirically":[285],"show":[286],"that":[287],"our":[288],"outperform":[292],"conventional":[293],"throughput":[294]},"counts_by_year":[{"year":2025,"cited_by_count":6},{"year":2024,"cited_by_count":8},{"year":2023,"cited_by_count":12},{"year":2022,"cited_by_count":8},{"year":2021,"cited_by_count":3}],"updated_date":"2026-03-27T05:58:40.876381","created_date":"2025-10-10T00:00:00"}