{"id":"https://openalex.org/W2907267104","doi":"https://doi.org/10.1109/tit.2022.3167601","title":"Optimal Age Over Erasure Channels","display_name":"Optimal Age Over Erasure Channels","publication_year":2022,"publication_date":"2022-04-14","ids":{"openalex":"https://openalex.org/W2907267104","doi":"https://doi.org/10.1109/tit.2022.3167601","mag":"2907267104"},"language":"en","primary_location":{"id":"doi:10.1109/tit.2022.3167601","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2022.3167601","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"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 Information Theory","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"green","oa_url":"https://infoscience.epfl.ch/handle/20.500.14299/190696","any_repository_has_fulltext":true},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5034444117","display_name":"Elie Najm","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":true,"raw_author_name":"Elie Najm","raw_affiliation_strings":["School of Computer and Communication Sciences, &#x00C9;cole Polytechnique F&#x00E9;d&#x00E9;rale de Lausanne (EPFL), Lausanne, Switzerland"],"raw_orcid":"https://orcid.org/0000-0002-3911-3382","affiliations":[{"raw_affiliation_string":"School of Computer and Communication Sciences, &#x00C9;cole Polytechnique F&#x00E9;d&#x00E9;rale de Lausanne (EPFL), Lausanne, Switzerland","institution_ids":["https://openalex.org/I5124864"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5025506109","display_name":"Emre Telatar","orcid":"https://orcid.org/0009-0007-5365-5368"},"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":"Emre Telatar","raw_affiliation_strings":["School of Computer and Communication Sciences, &#x00C9;cole Polytechnique F&#x00E9;d&#x00E9;rale de Lausanne (EPFL), 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 (EPFL), Lausanne, Switzerland","institution_ids":["https://openalex.org/I5124864"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5054758065","display_name":"Rajai Nasser","orcid":"https://orcid.org/0000-0003-0057-1201"},"institutions":[{"id":"https://openalex.org/I98635879","display_name":"American University of Beirut","ror":"https://ror.org/04pznsd21","country_code":"LB","type":"education","lineage":["https://openalex.org/I98635879"]}],"countries":["LB"],"is_corresponding":false,"raw_author_name":"Rajai Nasser","raw_affiliation_strings":["ECE Department, American University of Beirut, Beirut, Lebanon"],"raw_orcid":"https://orcid.org/0000-0003-0057-1201","affiliations":[{"raw_affiliation_string":"ECE Department, American University of Beirut, Beirut, Lebanon","institution_ids":["https://openalex.org/I98635879"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5034444117"],"corresponding_institution_ids":["https://openalex.org/I5124864"],"apc_list":null,"apc_paid":null,"fwci":0.7134,"has_fulltext":false,"cited_by_count":18,"citation_normalized_percentile":{"value":0.70268065,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":99},"biblio":{"volume":"68","issue":"9","first_page":"5901","last_page":"5922"},"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":0.9704999923706055,"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":0.967199981212616,"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/erasure","display_name":"Erasure","score":0.6937885284423828},{"id":"https://openalex.org/keywords/binary-erasure-channel","display_name":"Binary erasure channel","score":0.6167029738426208},{"id":"https://openalex.org/keywords/mathematics","display_name":"Mathematics","score":0.5607964992523193},{"id":"https://openalex.org/keywords/alphabet","display_name":"Alphabet","score":0.5241068601608276},{"id":"https://openalex.org/keywords/coding","display_name":"Coding (social sciences)","score":0.5235547423362732},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4790933430194855},{"id":"https://openalex.org/keywords/discrete-mathematics","display_name":"Discrete mathematics","score":0.47513678669929504},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.41799402236938477},{"id":"https://openalex.org/keywords/upper-and-lower-bounds","display_name":"Upper and lower bounds","score":0.41314923763275146},{"id":"https://openalex.org/keywords/combinatorics","display_name":"Combinatorics","score":0.364755243062973},{"id":"https://openalex.org/keywords/channel-capacity","display_name":"Channel capacity","score":0.360238254070282},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.3358614146709442},{"id":"https://openalex.org/keywords/statistics","display_name":"Statistics","score":0.24831250309944153}],"concepts":[{"id":"https://openalex.org/C2778790127","wikidata":"https://www.wikidata.org/wiki/Q484885","display_name":"Erasure","level":2,"score":0.6937885284423828},{"id":"https://openalex.org/C149862233","wikidata":"https://www.wikidata.org/wiki/Q864142","display_name":"Binary erasure channel","level":4,"score":0.6167029738426208},{"id":"https://openalex.org/C33923547","wikidata":"https://www.wikidata.org/wiki/Q395","display_name":"Mathematics","level":0,"score":0.5607964992523193},{"id":"https://openalex.org/C112876837","wikidata":"https://www.wikidata.org/wiki/Q837518","display_name":"Alphabet","level":2,"score":0.5241068601608276},{"id":"https://openalex.org/C179518139","wikidata":"https://www.wikidata.org/wiki/Q5140297","display_name":"Coding (social sciences)","level":2,"score":0.5235547423362732},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4790933430194855},{"id":"https://openalex.org/C118615104","wikidata":"https://www.wikidata.org/wiki/Q121416","display_name":"Discrete mathematics","level":1,"score":0.47513678669929504},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.41799402236938477},{"id":"https://openalex.org/C77553402","wikidata":"https://www.wikidata.org/wiki/Q13222579","display_name":"Upper and lower bounds","level":2,"score":0.41314923763275146},{"id":"https://openalex.org/C114614502","wikidata":"https://www.wikidata.org/wiki/Q76592","display_name":"Combinatorics","level":1,"score":0.364755243062973},{"id":"https://openalex.org/C97744766","wikidata":"https://www.wikidata.org/wiki/Q870845","display_name":"Channel capacity","level":3,"score":0.360238254070282},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.3358614146709442},{"id":"https://openalex.org/C105795698","wikidata":"https://www.wikidata.org/wiki/Q12483","display_name":"Statistics","level":1,"score":0.24831250309944153},{"id":"https://openalex.org/C138885662","wikidata":"https://www.wikidata.org/wiki/Q5891","display_name":"Philosophy","level":0,"score":0.0},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.0},{"id":"https://openalex.org/C41895202","wikidata":"https://www.wikidata.org/wiki/Q8162","display_name":"Linguistics","level":1,"score":0.0},{"id":"https://openalex.org/C134306372","wikidata":"https://www.wikidata.org/wiki/Q7754","display_name":"Mathematical analysis","level":1,"score":0.0},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.0}],"mesh":[],"locations_count":2,"locations":[{"id":"doi:10.1109/tit.2022.3167601","is_oa":false,"landing_page_url":"https://doi.org/10.1109/tit.2022.3167601","pdf_url":null,"source":{"id":"https://openalex.org/S4502562","display_name":"IEEE Transactions on Information Theory","issn_l":"0018-9448","issn":["0018-9448","1557-9654"],"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 Information Theory","raw_type":"journal-article"},{"id":"pmh:oai:infoscience.epfl.ch:296624","is_oa":true,"landing_page_url":"https://infoscience.epfl.ch/handle/20.500.14299/190696","pdf_url":null,"source":{"id":"https://openalex.org/S4306400487","display_name":"Infoscience (Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"WoS","raw_type":"research article"}],"best_oa_location":{"id":"pmh:oai:infoscience.epfl.ch:296624","is_oa":true,"landing_page_url":"https://infoscience.epfl.ch/handle/20.500.14299/190696","pdf_url":null,"source":{"id":"https://openalex.org/S4306400487","display_name":"Infoscience (Ecole Polytechnique F\u00e9d\u00e9rale de Lausanne)","issn_l":null,"issn":null,"is_oa":true,"is_in_doaj":false,"is_core":false,"host_organization":null,"host_organization_name":null,"host_organization_lineage":[],"host_organization_lineage_names":[],"type":"repository"},"license":"cc-by-nc-nd","license_id":"https://openalex.org/licenses/cc-by-nc-nd","version":"submittedVersion","is_accepted":false,"is_published":false,"raw_source_name":"WoS","raw_type":"research article"},"sustainable_development_goals":[{"score":0.8299999833106995,"display_name":"Quality Education","id":"https://metadata.un.org/sdg/4"}],"awards":[{"id":"https://openalex.org/G3019472168","display_name":null,"funder_award_id":"200021_166106/1","funder_id":"https://openalex.org/F4320320924","funder_display_name":"Schweizerischer Nationalfonds zur F\u00f6rderung der Wissenschaftlichen Forschung"}],"funders":[{"id":"https://openalex.org/F4320320924","display_name":"Schweizerischer Nationalfonds zur F\u00f6rderung der Wissenschaftlichen Forschung","ror":"https://ror.org/00yjd3n13"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":39,"referenced_works":["https://openalex.org/W1495550473","https://openalex.org/W1536930200","https://openalex.org/W1551179946","https://openalex.org/W1640967807","https://openalex.org/W1932416753","https://openalex.org/W1970679118","https://openalex.org/W1993918491","https://openalex.org/W2069417241","https://openalex.org/W2069689609","https://openalex.org/W2077055049","https://openalex.org/W2146487252","https://openalex.org/W2155677847","https://openalex.org/W2260745325","https://openalex.org/W2277339892","https://openalex.org/W2296743432","https://openalex.org/W2345637103","https://openalex.org/W2612100624","https://openalex.org/W2744248483","https://openalex.org/W2797442898","https://openalex.org/W2801221059","https://openalex.org/W2889316173","https://openalex.org/W2917981112","https://openalex.org/W2960308605","https://openalex.org/W2962763634","https://openalex.org/W2962995513","https://openalex.org/W2962999278","https://openalex.org/W2963053102","https://openalex.org/W2963230953","https://openalex.org/W2963528524","https://openalex.org/W2963629792","https://openalex.org/W2963696760","https://openalex.org/W2963869148","https://openalex.org/W2964222997","https://openalex.org/W2964290621","https://openalex.org/W2975901010","https://openalex.org/W3106385712","https://openalex.org/W3137257456","https://openalex.org/W3164763813","https://openalex.org/W4301885439"],"related_works":["https://openalex.org/W2372190485","https://openalex.org/W2583282232","https://openalex.org/W2962908977","https://openalex.org/W2140357074","https://openalex.org/W2113562070","https://openalex.org/W2953350338","https://openalex.org/W2810502498","https://openalex.org/W2028268383","https://openalex.org/W2743670993","https://openalex.org/W3098382325"],"abstract_inverted_index":{"Previous":[0],"works":[1],"on":[2],"age":[3,18,22,115,140,146,156],"of":[4,72,77,157],"information":[5],"and":[6,14,44,91,108,141],"erasure":[7,46],"channels":[8],"have":[9,95,127],"dealt":[10],"with":[11],"specific":[12],"models":[13],"computed":[15],"the":[16,64,69,78,85,88,92,96,114,122,125,138,144,153,162],"average":[17,20,139,145,155],"or":[19],"peak":[21],"for":[23,113],"certain":[24],"settings.":[25],"In":[26],"this":[27],"paper,":[28],"given":[29],"a":[30,34,102,109,132],"source":[31,89,163],"that":[32,48,67,74,101,143],"produces":[33],"letter":[35],"every":[36,52],"<inline-formula":[37,53],"xmlns:mml=\"http://www.w3.org/1998/Math/MathML\"":[38,54],"xmlns:xlink=\"http://www.w3.org/1999/xlink\">":[39,55],"<tex-math":[40,56],"notation=\"LaTeX\">$T_{s}$":[41],"</tex-math></inline-formula>":[42,58],"seconds":[43],"an":[45,75],"channel":[47,79],"can":[49,116],"be":[50,117],"used":[51],"notation=\"LaTeX\">$T_{c}$":[57],"seconds,":[59],"we":[60],"ask":[61],"what":[62],"is":[63,106],"coding":[65,104,134],"strategy":[66,105],"minimizes":[68],"time-average":[70],"\u201cage":[71],"information\u201d":[73],"observer":[76],"output":[80],"incurs.":[81],"We":[82,99,119,130],"first":[83],"analyze":[84,121],"case":[86,123],"where":[87,124],"alphabet":[90,94,164],"channel-input":[93],"same":[97],"size.":[98],"show":[100,142],"trivial":[103],"optimal":[107,154],"closed":[110],"form":[111],"expression":[112],"derived.":[118],"then":[120],"alphabets":[126],"different":[128],"sizes.":[129],"use":[131],"random":[133,149],"argument":[135],"to":[136,152],"bound":[137],"achieved":[147],"using":[148],"codes":[150,160],"converges":[151],"linear":[158],"block":[159],"as":[161],"becomes":[165],"large.":[166]},"counts_by_year":[{"year":2023,"cited_by_count":4},{"year":2022,"cited_by_count":1},{"year":2021,"cited_by_count":5},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":7}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2019-01-11T00:00:00"}