{"id":"https://openalex.org/W3162459705","doi":"https://doi.org/10.1109/jiot.2021.3080401","title":"Multimodal CSI-Based Human Activity Recognition Using GANs","display_name":"Multimodal CSI-Based Human Activity Recognition Using GANs","publication_year":2021,"publication_date":"2021-05-14","ids":{"openalex":"https://openalex.org/W3162459705","doi":"https://doi.org/10.1109/jiot.2021.3080401","mag":"3162459705"},"language":"en","primary_location":{"id":"doi:10.1109/jiot.2021.3080401","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2021.3080401","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/A5038537327","display_name":"Dazhuo Wang","orcid":"https://orcid.org/0000-0002-1667-0573"},"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":"Dazhuo Wang","raw_affiliation_strings":["School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-1667-0573","affiliations":[{"raw_affiliation_string":"School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5005666034","display_name":"Jianfei Yang","orcid":"https://orcid.org/0000-0002-8075-0439"},"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":"Jianfei Yang","raw_affiliation_strings":["School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-8075-0439","affiliations":[{"raw_affiliation_string":"School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101908816","display_name":"Wei Cui","orcid":"https://orcid.org/0000-0002-3697-0733"},"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":"Wei Cui","raw_affiliation_strings":["Agency for Science, Technology and Research (A*STAR), Institute for Infocomm Research (I2R), Singapore"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Agency for Science, Technology and Research (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/A5100365448","display_name":"Lihua Xie","orcid":"https://orcid.org/0000-0002-7137-4136"},"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":"Lihua Xie","raw_affiliation_strings":["School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore"],"raw_orcid":"https://orcid.org/0000-0002-7137-4136","affiliations":[{"raw_affiliation_string":"School of Electrical and Electronics Engineering, Nanyang Technological University, Singapore","institution_ids":["https://openalex.org/I172675005"]}]},{"author_position":"last","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":["Agency for Science, Technology and Research (A*STAR), Institute for Infocomm Research (I2R), Singapore"],"raw_orcid":"https://orcid.org/0000-0002-1701-8122","affiliations":[{"raw_affiliation_string":"Agency for Science, Technology and Research (A*STAR), Institute for Infocomm Research (I2R), Singapore","institution_ids":["https://openalex.org/I3005327000","https://openalex.org/I115228651"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":6.5827,"has_fulltext":false,"cited_by_count":129,"citation_normalized_percentile":{"value":0.97767195,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":95,"max":100},"biblio":{"volume":"8","issue":"24","first_page":"17345","last_page":"17355"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":1.0,"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":1.0,"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/T11158","display_name":"Wireless Networks and Protocols","score":0.9983999729156494,"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/T10860","display_name":"Speech and Audio Processing","score":0.996999979019165,"subfield":{"id":"https://openalex.org/subfields/1711","display_name":"Signal Processing"},"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":0.8665936589241028},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.7847914695739746},{"id":"https://openalex.org/keywords/generator","display_name":"Generator (circuit theory)","score":0.5835922956466675},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.5062671899795532},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.4473777711391449},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.4378589391708374},{"id":"https://openalex.org/keywords/machine-learning","display_name":"Machine learning","score":0.4367724359035492},{"id":"https://openalex.org/keywords/wearable-computer","display_name":"Wearable computer","score":0.433765709400177},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.3309210538864136},{"id":"https://openalex.org/keywords/data-mining","display_name":"Data mining","score":0.3304182291030884},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.2410115897655487},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.15346452593803406},{"id":"https://openalex.org/keywords/embedded-system","display_name":"Embedded system","score":0.12500518560409546}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8665936589241028},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.7847914695739746},{"id":"https://openalex.org/C2780992000","wikidata":"https://www.wikidata.org/wiki/Q17016113","display_name":"Generator (circuit theory)","level":3,"score":0.5835922956466675},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.5062671899795532},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.4473777711391449},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.4378589391708374},{"id":"https://openalex.org/C119857082","wikidata":"https://www.wikidata.org/wiki/Q2539","display_name":"Machine learning","level":1,"score":0.4367724359035492},{"id":"https://openalex.org/C150594956","wikidata":"https://www.wikidata.org/wiki/Q1334829","display_name":"Wearable computer","level":2,"score":0.433765709400177},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.3309210538864136},{"id":"https://openalex.org/C124101348","wikidata":"https://www.wikidata.org/wiki/Q172491","display_name":"Data mining","level":1,"score":0.3304182291030884},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2410115897655487},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.15346452593803406},{"id":"https://openalex.org/C149635348","wikidata":"https://www.wikidata.org/wiki/Q193040","display_name":"Embedded system","level":1,"score":0.12500518560409546},{"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},{"id":"https://openalex.org/C163258240","wikidata":"https://www.wikidata.org/wiki/Q25342","display_name":"Power (physics)","level":2,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/jiot.2021.3080401","is_oa":false,"landing_page_url":"https://doi.org/10.1109/jiot.2021.3080401","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":[],"funders":[{"id":"https://openalex.org/F4320320696","display_name":"Agency for Science, Technology and Research","ror":"https://ror.org/036wvzt09"}],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":47,"referenced_works":["https://openalex.org/W2089695767","https://openalex.org/W2095396347","https://openalex.org/W2133830503","https://openalex.org/W2141336889","https://openalex.org/W2163605009","https://openalex.org/W2172292165","https://openalex.org/W2281716152","https://openalex.org/W2309512289","https://openalex.org/W2338892592","https://openalex.org/W2340862004","https://openalex.org/W2463631526","https://openalex.org/W2507908806","https://openalex.org/W2570080371","https://openalex.org/W2594230123","https://openalex.org/W2621353408","https://openalex.org/W2749514013","https://openalex.org/W2764224278","https://openalex.org/W2783388505","https://openalex.org/W2783428225","https://openalex.org/W2783857023","https://openalex.org/W2784220689","https://openalex.org/W2788518751","https://openalex.org/W2794843057","https://openalex.org/W2808442904","https://openalex.org/W2809191403","https://openalex.org/W2811245964","https://openalex.org/W2811272561","https://openalex.org/W2885580664","https://openalex.org/W2887389727","https://openalex.org/W2890776497","https://openalex.org/W2896542121","https://openalex.org/W2897189857","https://openalex.org/W2899145720","https://openalex.org/W2900264681","https://openalex.org/W2914874110","https://openalex.org/W2944172587","https://openalex.org/W2948534871","https://openalex.org/W2963890275","https://openalex.org/W2969645632","https://openalex.org/W2974216175","https://openalex.org/W3008383986","https://openalex.org/W3036584804","https://openalex.org/W3105241699","https://openalex.org/W3136666733","https://openalex.org/W6684191040","https://openalex.org/W6748363653","https://openalex.org/W6785937473"],"related_works":["https://openalex.org/W3195649134","https://openalex.org/W2281498195","https://openalex.org/W2017526120","https://openalex.org/W2610664080","https://openalex.org/W2188304107","https://openalex.org/W2294565841","https://openalex.org/W2117913171","https://openalex.org/W3105278570","https://openalex.org/W2582769230","https://openalex.org/W2899145720"],"abstract_inverted_index":{"Channel":[0],"state":[1,39],"information":[2],"(CSI)-based":[3],"human":[4,52,66],"activity":[5,41],"recognition":[6,42,67,158],"(HAR)":[7],"has":[8],"received":[9],"great":[10],"attention":[11],"in":[12,19,110],"recent":[13],"years":[14],"due":[15,69],"to":[16,23,59,70,104,142,155,168],"its":[17],"advantages":[18,89],"privacy":[20],"protection,":[21],"insensitivity":[22],"illumination,":[24],"and":[25,50,96,217],"no":[26],"requirement":[27],"for":[28,131],"wearable":[29],"devices.":[30],"In":[31,181],"this":[32],"article,":[33],"we":[34,74],"propose":[35],"a":[36,101,177],"multimodal":[37,102,125,135,188],"channel":[38],"information-based":[40],"(MCBAR)":[43],"system":[44],"that":[45,211],"leverages":[46],"existing":[47,219],"WiFi":[48],"infrastructures":[49],"monitors":[51],"activities":[53,86,145],"from":[54,176,186],"CSI":[55,107,117,121,148,173],"measurements.":[56],"MCBAR":[57,141,160,199],"aims":[58],"address":[60,75],"the":[61,76,91,106,124,138,170,187,191,194],"performances":[62],"degradation":[63],"of":[64,78,90,140,193],"WiFi-based":[65],"systems":[68],"environmental":[71,152,215],"dynamics.":[72,153],"Specifically,":[73],"issue":[77],"nonuniformly":[79,171],"distributed":[80,172],"unlabeled":[81],"data":[82,108,122,174,185],"with":[83,114,146],"rarely":[84],"performed":[85],"by":[87,151],"taking":[88],"generative":[92],"adversarial":[93],"network":[94],"(GAN)":[95],"semisupervised":[97],"learning.":[98],"We":[99,196],"apply":[100],"generator":[103,126,136,189],"approximate":[105],"distribution":[109],"different":[111,205],"environment":[112,179],"settings":[113,203],"limited":[115],"measured":[116],"data.":[118],"The":[119,207],"generated":[120,184],"using":[123],"can":[127],"provide":[128],"better":[129],"diversity":[130],"knowledge":[132],"transfer.":[133],"This":[134],"improves":[137,190],"ability":[139],"recognize":[143],"specific":[144],"various":[147],"patterns":[149],"caused":[150],"Compared":[154],"state-of-the-art":[156],"CSI-based":[157],"systems,":[159],"is":[161,166],"more":[162],"robust":[163],"as":[164],"it":[165],"able":[167],"handle":[169],"collected":[175],"new":[178],"setting.":[180],"addition,":[182],"diverse":[183],"stability":[192],"system.":[195],"have":[197],"tested":[198],"under":[200],"multiple":[201],"experimental":[202,208],"at":[204],"places.":[206],"results":[209],"demonstrate":[210],"our":[212],"algorithm":[213],"overcomes":[214],"dynamics":[216],"outperforms":[218],"HAR":[220],"systems.":[221]},"counts_by_year":[{"year":2026,"cited_by_count":17},{"year":2025,"cited_by_count":30},{"year":2024,"cited_by_count":25},{"year":2023,"cited_by_count":35},{"year":2022,"cited_by_count":19},{"year":2021,"cited_by_count":3}],"updated_date":"2026-07-15T18:14:33.161393","created_date":"2025-10-10T00:00:00"}
