{"id":"https://openalex.org/W4205727408","doi":"https://doi.org/10.1109/jiot.2021.3132329","title":"Active User Detection and Channel Estimation for Massive Machine-Type Communication: Deep Learning Approach","display_name":"Active User Detection and Channel Estimation for Massive Machine-Type Communication: Deep Learning Approach","publication_year":2021,"publication_date":"2021-12-03","ids":{"openalex":"https://openalex.org/W4205727408","doi":"https://doi.org/10.1109/jiot.2021.3132329"},"language":"en","primary_location":{"id":"doi:10.1109/jiot.2021.3132329","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2021.3132329","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/A5067564347","display_name":"Yongjun Ahn","orcid":"https://orcid.org/0000-0003-0914-9330"},"institutions":[{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]},{"id":"https://openalex.org/I4210164379","display_name":"Seoul Media Institute of Technology","ror":"https://ror.org/04ywg4h07","country_code":"KR","type":"education","lineage":["https://openalex.org/I4210164379"]}],"countries":["KR"],"is_corresponding":true,"raw_author_name":"Yongjun Ahn","raw_affiliation_strings":["Institute of New Media and Communications and the Department of Electrical and Computer Engineering, Seoul National University, Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Institute of New Media and Communications and the Department of Electrical and Computer Engineering, Seoul National University, Seoul, South Korea","institution_ids":["https://openalex.org/I4210164379","https://openalex.org/I139264467"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102771085","display_name":"Wonjun Kim","orcid":"https://orcid.org/0000-0002-2439-7802"},"institutions":[{"id":"https://openalex.org/I2250650973","display_name":"Samsung (South Korea)","ror":"https://ror.org/04w3jy968","country_code":"KR","type":"company","lineage":["https://openalex.org/I2250650973"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Wonjun Kim","raw_affiliation_strings":["Samsung Research, Samsung Electronics, Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Samsung Research, Samsung Electronics, Seoul, South Korea","institution_ids":["https://openalex.org/I2250650973"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5076075267","display_name":"Byonghyo Shim","orcid":"https://orcid.org/0000-0001-5051-1763"},"institutions":[{"id":"https://openalex.org/I4210164379","display_name":"Seoul Media Institute of Technology","ror":"https://ror.org/04ywg4h07","country_code":"KR","type":"education","lineage":["https://openalex.org/I4210164379"]},{"id":"https://openalex.org/I139264467","display_name":"Seoul National University","ror":"https://ror.org/04h9pn542","country_code":"KR","type":"education","lineage":["https://openalex.org/I139264467"]}],"countries":["KR"],"is_corresponding":false,"raw_author_name":"Byonghyo Shim","raw_affiliation_strings":["Institute of New Media and Communications and the Department of Electrical and Computer Engineering, Seoul National University, Seoul, South Korea"],"affiliations":[{"raw_affiliation_string":"Institute of New Media and Communications and the Department of Electrical and Computer Engineering, Seoul National University, Seoul, South Korea","institution_ids":["https://openalex.org/I4210164379","https://openalex.org/I139264467"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5067564347"],"corresponding_institution_ids":["https://openalex.org/I139264467","https://openalex.org/I4210164379"],"apc_list":null,"apc_paid":null,"fwci":3.6711,"has_fulltext":false,"cited_by_count":36,"citation_normalized_percentile":{"value":0.94238817,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":98,"max":99},"biblio":{"volume":"9","issue":"14","first_page":"11904","last_page":"11917"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T12131","display_name":"Wireless Signal Modulation Classification","score":0.9988999962806702,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"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/T10148","display_name":"Advanced MIMO Systems Optimization","score":0.9983000159263611,"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/T10125","display_name":"Advanced Wireless Communication Techniques","score":0.9973999857902527,"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":0.8433087468147278},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.546691358089447},{"id":"https://openalex.org/keywords/deep-learning","display_name":"Deep learning","score":0.5019893646240234},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4954332113265991},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.4837181866168976},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.3200678825378418}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8433087468147278},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.546691358089447},{"id":"https://openalex.org/C108583219","wikidata":"https://www.wikidata.org/wiki/Q197536","display_name":"Deep learning","level":2,"score":0.5019893646240234},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4954332113265991},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.4837181866168976},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.3200678825378418}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jiot.2021.3132329","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2021.3132329","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":[],"awards":[{"id":"https://openalex.org/G3880285543","display_name":null,"funder_award_id":"2020R1A2C2102198","funder_id":"https://openalex.org/F4320322120","funder_display_name":"National Research Foundation of Korea"},{"id":"https://openalex.org/G635616879","display_name":null,"funder_award_id":"IITP-2021-2017-0-01637","funder_id":"https://openalex.org/F4320335489","funder_display_name":"Institute for Information and Communications Technology Promotion"}],"funders":[{"id":"https://openalex.org/F4320322120","display_name":"National Research Foundation of Korea","ror":"https://ror.org/013aysd81"},{"id":"https://openalex.org/F4320332195","display_name":"Samsung","ror":"https://ror.org/04w3jy968"},{"id":"https://openalex.org/F4320335489","display_name":"Institute for Information and Communications Technology Promotion","ror":"https://ror.org/01g0hqq23"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":38,"referenced_works":["https://openalex.org/W1522301498","https://openalex.org/W2064675550","https://openalex.org/W2103870274","https://openalex.org/W2111953900","https://openalex.org/W2143612262","https://openalex.org/W2150355110","https://openalex.org/W2194775991","https://openalex.org/W2617851845","https://openalex.org/W2766447205","https://openalex.org/W2768871679","https://openalex.org/W2778904866","https://openalex.org/W2784277076","https://openalex.org/W2808769356","https://openalex.org/W2900452440","https://openalex.org/W2908498346","https://openalex.org/W2921104505","https://openalex.org/W2938113616","https://openalex.org/W2945744693","https://openalex.org/W2962959174","https://openalex.org/W2963177968","https://openalex.org/W2963305322","https://openalex.org/W2965769574","https://openalex.org/W2971912794","https://openalex.org/W2989010437","https://openalex.org/W3001915958","https://openalex.org/W3009908063","https://openalex.org/W3011593776","https://openalex.org/W3011830499","https://openalex.org/W3039402952","https://openalex.org/W3046061034","https://openalex.org/W3121409670","https://openalex.org/W3134054640","https://openalex.org/W3137140674","https://openalex.org/W3161603475","https://openalex.org/W3178388087","https://openalex.org/W3185097200","https://openalex.org/W4206180546","https://openalex.org/W6631190155"],"related_works":["https://openalex.org/W2731899572","https://openalex.org/W2961085424","https://openalex.org/W3215138031","https://openalex.org/W4306674287","https://openalex.org/W3009238340","https://openalex.org/W4360585206","https://openalex.org/W4321369474","https://openalex.org/W4285208911","https://openalex.org/W4387369504","https://openalex.org/W3046775127"],"abstract_inverted_index":{"Recently,":[0],"massive":[1,18],"machine-type":[2],"communications":[3],"(mMTCs)":[4],"have":[5,35],"become":[6],"one":[7],"of":[8,129],"key":[9],"use":[10],"cases":[11],"for":[12],"5G.":[13],"In":[14,96,112],"order":[15],"to":[16],"support":[17],"users":[19],"transmitting":[20],"small":[21],"data":[22],"packets":[23],"at":[24,60],"low":[25],"rates,":[26],"grant-free":[27],"(GF)":[28],"access":[29,33],"and":[30,87,106,126,132,156],"nonorthogonal":[31],"multiple":[32,83],"(NOMA)":[34],"been":[36],"suggested.":[37],"Since":[38],"each":[39],"device":[40,50],"transmits":[41],"information":[42],"without":[43],"scheduling":[44],"in":[45,91,108,152,158],"the":[46,49,61,66,69,76,92,109,118,122,127,136,147,154,159],"GF-NOMA":[47,110],"systems,":[48,68],"identification":[51],"process,":[52],"called":[53],"active":[54,130],"user":[55],"detection":[56],"(AUD),":[57],"is":[58,78,150],"required":[59],"base":[62],"station":[63],"(BS).":[64],"For":[65],"NOMA-based":[67],"channel":[70],"estimation":[71],"(CE),":[72],"an":[73],"operation":[74],"after":[75],"AUD,":[77],"a":[79,101],"challenging":[80],"task":[81],"since":[82],"devices\u2019":[84],"transmit":[85],"signals":[86],"channels":[88,134],"are":[89],"superimposed":[90],"same":[93],"wireless":[94],"resources.":[95],"this":[97],"article,":[98],"we":[99,144],"propose":[100],"deep":[102],"learning":[103],"(DL)-based":[104],"AUD":[105,155],"CE":[107,157],"systems.":[111],"our":[113],"work,":[114],"DL":[115],"figures":[116],"out":[117],"direct":[119],"mapping":[120],"between":[121],"received":[123],"NOMA":[124],"signal":[125],"indices":[128],"devices":[131],"associated":[133],"using":[135],"long":[137],"short-term":[138],"memory":[139],"(LSTM).":[140],"From":[141],"numerical":[142],"experiments,":[143],"show":[145],"that":[146],"proposed":[148],"scheme":[149],"effective":[151],"handling":[153],"mMTC":[160],"environments.":[161]},"counts_by_year":[{"year":2025,"cited_by_count":9},{"year":2024,"cited_by_count":6},{"year":2023,"cited_by_count":8},{"year":2022,"cited_by_count":13}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}
