{"id":"https://openalex.org/W4376478411","doi":"https://doi.org/10.1109/wcnc55385.2023.10118666","title":"Wi-Nod: Head Nodding Recognition by Wi-Fi CSI Toward Communicative Support for Quadriplegics","display_name":"Wi-Nod: Head Nodding Recognition by Wi-Fi CSI Toward Communicative Support for Quadriplegics","publication_year":2023,"publication_date":"2023-03-01","ids":{"openalex":"https://openalex.org/W4376478411","doi":"https://doi.org/10.1109/wcnc55385.2023.10118666"},"language":"en","primary_location":{"id":"doi:10.1109/wcnc55385.2023.10118666","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc55385.2023.10118666","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-article"},"type":"conference-paper","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/A5027503433","display_name":"Marwa R. M. Bastwesy","orcid":"https://orcid.org/0000-0002-5982-3410"},"institutions":[{"id":"https://openalex.org/I135598925","display_name":"Kyushu University","ror":"https://ror.org/00p4k0j84","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]},{"id":"https://openalex.org/I21376657","display_name":"Tanta University","ror":"https://ror.org/016jp5b92","country_code":"EG","type":"education","lineage":["https://openalex.org/I21376657"]}],"countries":["EG","JP"],"is_corresponding":false,"raw_author_name":"Marwa R. M. Bastwesy","raw_affiliation_strings":["Kyushu University,ISEE,Fukuoka,Japan","CCE, Tanta University, Tanta, Egypt","ISEE, Kyushu University, Fukuoka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyushu University,ISEE,Fukuoka,Japan","institution_ids":["https://openalex.org/I135598925"]},{"raw_affiliation_string":"CCE, Tanta University, Tanta, Egypt","institution_ids":["https://openalex.org/I21376657"]},{"raw_affiliation_string":"ISEE, Kyushu University, Fukuoka, Japan","institution_ids":["https://openalex.org/I135598925"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5099012616","display_name":"Kiichiro Kai","orcid":"https://orcid.org/0000-0002-7370-8582"},"institutions":[{"id":"https://openalex.org/I135598925","display_name":"Kyushu University","ror":"https://ror.org/00p4k0j84","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Kiichiro Kai","raw_affiliation_strings":["Kyushu University,EECS,Fukuoka,Japan","EECS, Kyushu University, Fukuoka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyushu University,EECS,Fukuoka,Japan","institution_ids":["https://openalex.org/I135598925"]},{"raw_affiliation_string":"EECS, Kyushu University, Fukuoka, Japan","institution_ids":["https://openalex.org/I135598925"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102748539","display_name":"Hyuckjin Choi","orcid":"https://orcid.org/0000-0001-8473-5159"},"institutions":[{"id":"https://openalex.org/I135598925","display_name":"Kyushu University","ror":"https://ror.org/00p4k0j84","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hyuckjin Choi","raw_affiliation_strings":["Kyushu University,ISEE,Fukuoka,Japan","ISEE, Kyushu University, Fukuoka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyushu University,ISEE,Fukuoka,Japan","institution_ids":["https://openalex.org/I135598925"]},{"raw_affiliation_string":"ISEE, Kyushu University, Fukuoka, Japan","institution_ids":["https://openalex.org/I135598925"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5058195874","display_name":"Shigemi Ishida","orcid":"https://orcid.org/0000-0003-0166-3984"},"institutions":[{"id":"https://openalex.org/I84400586","display_name":"Future University Hakodate","ror":"https://ror.org/05szw2z23","country_code":"JP","type":"education","lineage":["https://openalex.org/I84400586"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shigemi Ishida","raw_affiliation_strings":["Future University Hakodate,Dept. Media Architecture,Hokkaido,Japan","Dept. Media Architecture, Future University Hakodate, Hokkaido, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Future University Hakodate,Dept. Media Architecture,Hokkaido,Japan","institution_ids":["https://openalex.org/I84400586"]},{"raw_affiliation_string":"Dept. Media Architecture, Future University Hakodate, Hokkaido, Japan","institution_ids":["https://openalex.org/I84400586"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5084986446","display_name":"Yutaka Arakawa","orcid":"https://orcid.org/0000-0002-7156-9160"},"institutions":[{"id":"https://openalex.org/I135598925","display_name":"Kyushu University","ror":"https://ror.org/00p4k0j84","country_code":"JP","type":"education","lineage":["https://openalex.org/I135598925"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Yutaka Arakawa","raw_affiliation_strings":["Kyushu University,ISEE,Fukuoka,Japan","ISEE, Kyushu University, Fukuoka, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyushu University,ISEE,Fukuoka,Japan","institution_ids":["https://openalex.org/I135598925"]},{"raw_affiliation_string":"ISEE, Kyushu University, Fukuoka, Japan","institution_ids":["https://openalex.org/I135598925"]}]}],"institutions":[],"countries_distinct_count":2,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":null,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":null,"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"6"},"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/T10860","display_name":"Speech and Audio Processing","score":0.9972000122070312,"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"}},{"id":"https://openalex.org/T11158","display_name":"Wireless Networks and Protocols","score":0.9916999936103821,"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"}}],"keywords":[{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8309646844863892},{"id":"https://openalex.org/keywords/spectrogram","display_name":"Spectrogram","score":0.6395536065101624},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.546172559261322},{"id":"https://openalex.org/keywords/activity-recognition","display_name":"Activity recognition","score":0.4685681164264679},{"id":"https://openalex.org/keywords/speech-recognition","display_name":"Speech recognition","score":0.4616052210330963},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.44216787815093994},{"id":"https://openalex.org/keywords/preprocessor","display_name":"Preprocessor","score":0.4206598103046417},{"id":"https://openalex.org/keywords/computer-vision","display_name":"Computer vision","score":0.3425247073173523},{"id":"https://openalex.org/keywords/pattern-recognition","display_name":"Pattern recognition (psychology)","score":0.3412775993347168}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8309646844863892},{"id":"https://openalex.org/C45273575","wikidata":"https://www.wikidata.org/wiki/Q578970","display_name":"Spectrogram","level":2,"score":0.6395536065101624},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.546172559261322},{"id":"https://openalex.org/C121687571","wikidata":"https://www.wikidata.org/wiki/Q4677630","display_name":"Activity recognition","level":2,"score":0.4685681164264679},{"id":"https://openalex.org/C28490314","wikidata":"https://www.wikidata.org/wiki/Q189436","display_name":"Speech recognition","level":1,"score":0.4616052210330963},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.44216787815093994},{"id":"https://openalex.org/C34736171","wikidata":"https://www.wikidata.org/wiki/Q918333","display_name":"Preprocessor","level":2,"score":0.4206598103046417},{"id":"https://openalex.org/C31972630","wikidata":"https://www.wikidata.org/wiki/Q844240","display_name":"Computer vision","level":1,"score":0.3425247073173523},{"id":"https://openalex.org/C153180895","wikidata":"https://www.wikidata.org/wiki/Q7148389","display_name":"Pattern recognition (psychology)","level":2,"score":0.3412775993347168},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0},{"id":"https://openalex.org/C151730666","wikidata":"https://www.wikidata.org/wiki/Q7205","display_name":"Paleontology","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcnc55385.2023.10118666","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc55385.2023.10118666","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2023 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W2064081294","https://openalex.org/W2546450966","https://openalex.org/W2901996608","https://openalex.org/W2967554443","https://openalex.org/W3092619364","https://openalex.org/W3115562132","https://openalex.org/W3127000115","https://openalex.org/W3127786468","https://openalex.org/W3131461523","https://openalex.org/W3132192568","https://openalex.org/W3134998638","https://openalex.org/W3165012668","https://openalex.org/W3179595057","https://openalex.org/W3202011897","https://openalex.org/W4205469029","https://openalex.org/W4214813322","https://openalex.org/W4285263552","https://openalex.org/W6795421160"],"related_works":["https://openalex.org/W2530685530","https://openalex.org/W4375868962","https://openalex.org/W2011227383","https://openalex.org/W2088854863","https://openalex.org/W4402568167","https://openalex.org/W3179495260","https://openalex.org/W1976719989","https://openalex.org/W3127543252","https://openalex.org/W2897924318","https://openalex.org/W2138997758"],"abstract_inverted_index":{"Recently,":[0],"the":[1,33,77,86,92,97,102,105,126],"studies":[2],"of":[3,16,64,104,128],"wireless":[4],"device-free":[5],"human":[6],"sensing":[7],"technology":[8],"have":[9],"dramatically":[10],"advanced":[11],"with":[12],"enabling":[13],"a":[14],"variety":[15],"applications,":[17],"from":[18],"activity":[19],"recognition":[20,55,122],"to":[21,39,84],"vital":[22],"sign":[23],"monitoring.":[24],"In":[25],"this":[26],"paper,":[27],"we":[28],"propose":[29],"Wi-Nod":[30,129],"which":[31],"leverages":[32],"Wi-Fi":[34],"Channel":[35],"State":[36],"Information":[37],"(CSI)":[38],"detect":[40],"head":[41,87],"nodding":[42],"gestures":[43],"for":[44,53,131],"each":[45],"Morse":[46],"code":[47],"symbol":[48],"based":[49,75,90],"on":[50,76,91,107],"time-frequency":[51],"features":[52],"accurate":[54],"accuracy":[56,123],"in":[57,113],"multi-human":[58],"context":[59],"environment.":[60],"The":[61,80],"system":[62,106,118,130],"consists":[63],"three":[65],"basic":[66],"modules:":[67],"data":[68,70,110],"collection,":[69],"preprocessing,":[71],"and":[72],"learning":[73],"part":[74],"inception":[78],"model.":[79],"model":[81],"was":[82],"trained":[83],"perform":[85],"movement":[88],"detection":[89],"CSI":[93],"spectrogram":[94],"collected":[95,112],"by":[96],"ESP32":[98],"nodes.":[99],"We":[100],"evaluated":[101],"performance":[103],"four":[108],"different":[109,115],"sets":[111],"two":[114],"sessions.":[116],"Our":[117],"achieves":[119],"over":[120],"95%":[121],"that":[124],"reveals":[125],"feasibility":[127],"real-life":[132],"deployment.":[133]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":1},{"year":2023,"cited_by_count":5}],"updated_date":"2026-07-27T08:26:11.824852","created_date":"2025-10-10T00:00:00"}
