{"id":"https://openalex.org/W4401749122","doi":"https://doi.org/10.23919/transcom.2024cei0003","title":"Experimental Evaluation of Device-Free Indoor Localization Using Channel State Information in WLAN Systems with Distributed Antennas","display_name":"Experimental Evaluation of Device-Free Indoor Localization Using Channel State Information in WLAN Systems with Distributed Antennas","publication_year":2024,"publication_date":"2024-08-22","ids":{"openalex":"https://openalex.org/W4401749122","doi":"https://doi.org/10.23919/transcom.2024cei0003"},"language":"en","primary_location":{"id":"doi:10.23919/transcom.2024cei0003","is_oa":false,"landing_page_url":"https://doi.org/10.23919/transcom.2024cei0003","pdf_url":null,"source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on 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/A5063434011","display_name":"Osamu Muta","orcid":"https://orcid.org/0000-0001-5100-9855"},"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":"Osamu Muta","raw_affiliation_strings":["Kyushu University,Faculty of Information Science and Electrical Engineering,Fukuoka-shi,Japan,819-0395"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Kyushu University,Faculty of Information Science and Electrical Engineering,Fukuoka-shi,Japan,819-0395","institution_ids":["https://openalex.org/I135598925"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5113110577","display_name":"Junsuke Izumi","orcid":null},"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":"Junsuke Izumi","raw_affiliation_strings":["Graduate School of Information Science and Electrical Engineering, Kyushu University,Fukuoka-shi,Japan,819-0395"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Information Science and Electrical Engineering, Kyushu University,Fukuoka-shi,Japan,819-0395","institution_ids":["https://openalex.org/I135598925"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101752024","display_name":"Shunsuke Shimizu","orcid":null},"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":"Shunsuke Shimizu","raw_affiliation_strings":["Graduate School of Information Science and Electrical Engineering, Kyushu University,Fukuoka-shi,Japan,819-0395"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Graduate School of Information Science and Electrical Engineering, Kyushu University,Fukuoka-shi,Japan,819-0395","institution_ids":["https://openalex.org/I135598925"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5053420223","display_name":"Tomoki Murakami","orcid":"https://orcid.org/0000-0002-5617-155X"},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Tomoki Murakami","raw_affiliation_strings":["NTT Access Network Service Systems Laboratories,Yokosuka-shi,Japan,239-0847"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT Access Network Service Systems Laboratories,Yokosuka-shi,Japan,239-0847","institution_ids":["https://openalex.org/I2251713219"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111720770","display_name":"S. Otsuki","orcid":null},"institutions":[{"id":"https://openalex.org/I2251713219","display_name":"NTT (Japan)","ror":"https://ror.org/00berct97","country_code":"JP","type":"company","lineage":["https://openalex.org/I2251713219"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Shinya Otsuki","raw_affiliation_strings":["NTT Access Network Service Systems Laboratories,Yokosuka-shi,Japan,239-0847"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"NTT Access Network Service Systems Laboratories,Yokosuka-shi,Japan,239-0847","institution_ids":["https://openalex.org/I2251713219"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.6923,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.69345783,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":"E107-B","issue":"12","first_page":"890","last_page":"898"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9998000264167786,"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":0.9998000264167786,"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":0.991599977016449,"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/T12879","display_name":"Distributed Sensor Networks and Detection Algorithms","score":0.9905999898910522,"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":0.8920853137969971},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.6061890721321106},{"id":"https://openalex.org/keywords/channel-state-information","display_name":"Channel state information","score":0.6048209071159363},{"id":"https://openalex.org/keywords/state","display_name":"State (computer science)","score":0.5119155645370483},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.43797093629837036},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.3735195994377136},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.26614731550216675},{"id":"https://openalex.org/keywords/algorithm","display_name":"Algorithm","score":0.07331785559654236}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8920853137969971},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.6061890721321106},{"id":"https://openalex.org/C148063708","wikidata":"https://www.wikidata.org/wiki/Q5072511","display_name":"Channel state information","level":3,"score":0.6048209071159363},{"id":"https://openalex.org/C48103436","wikidata":"https://www.wikidata.org/wiki/Q599031","display_name":"State (computer science)","level":2,"score":0.5119155645370483},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.43797093629837036},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.3735195994377136},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.26614731550216675},{"id":"https://openalex.org/C11413529","wikidata":"https://www.wikidata.org/wiki/Q8366","display_name":"Algorithm","level":1,"score":0.07331785559654236}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.23919/transcom.2024cei0003","is_oa":false,"landing_page_url":"https://doi.org/10.23919/transcom.2024cei0003","pdf_url":null,"source":{"id":"https://openalex.org/S2493627025","display_name":"IEICE Transactions on Communications","issn_l":"0916-8516","issn":["0916-8516","1745-1345"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4320800604","host_organization_name":"Institute of Electronics, Information and Communication Engineers","host_organization_lineage":["https://openalex.org/P4320800604"],"host_organization_lineage_names":["Institute of Electronics, Information and Communication Engineers"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"IEICE Transactions on Communications","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":32,"referenced_works":["https://openalex.org/W2058040842","https://openalex.org/W2172292165","https://openalex.org/W2327645608","https://openalex.org/W2538535315","https://openalex.org/W2591820339","https://openalex.org/W2766400768","https://openalex.org/W2790688089","https://openalex.org/W2803819612","https://openalex.org/W2896655658","https://openalex.org/W2899071208","https://openalex.org/W2939481405","https://openalex.org/W2947693783","https://openalex.org/W2952065976","https://openalex.org/W2952979195","https://openalex.org/W2972998248","https://openalex.org/W3000564166","https://openalex.org/W3092034864","https://openalex.org/W3104120779","https://openalex.org/W3118363405","https://openalex.org/W3120766398","https://openalex.org/W4221152006","https://openalex.org/W4285203226","https://openalex.org/W4294811324","https://openalex.org/W4295308584","https://openalex.org/W4313055888","https://openalex.org/W4313590868","https://openalex.org/W4313886683","https://openalex.org/W4321488241","https://openalex.org/W4389545161","https://openalex.org/W4389545254","https://openalex.org/W4391454495","https://openalex.org/W4392207998"],"related_works":["https://openalex.org/W2519329692","https://openalex.org/W2111375262","https://openalex.org/W2317728013","https://openalex.org/W1991205173","https://openalex.org/W2109048960","https://openalex.org/W4313886786","https://openalex.org/W3172929370","https://openalex.org/W2741481635","https://openalex.org/W2270192484","https://openalex.org/W2338537463"],"abstract_inverted_index":{"Advanced":[0],"wireless":[1,6,97],"communication":[2,23],"systems":[3,126,183],"combined":[4],"with":[5,106],"sensing":[7],"are":[8,25,63,127],"being":[9],"developed":[10,96],"as":[11,36,129],"a":[12],"key":[13],"technology":[14],"toward":[15],"Beyond":[16],"5G":[17],"and":[18,39,68,85,109,177],"6G":[19],"networks.":[20],"Such":[21],"future":[22],"networks":[24],"expected":[26,162],"to":[27,54,80],"offer":[28],"additional":[29],"capabilities":[30],"that":[31,138],"enable":[32],"new":[33],"applications,":[34],"such":[35],"object":[37,48],"detection":[38,49],"localization":[40,104],"using":[41,50],"radio":[42,51,60],"signals.":[43],"The":[44],"basic":[45],"concept":[46],"of":[47,70,180],"signals":[52],"is":[53,78,166],"track":[55],"the":[56,59,66,82,164,175,181],"fluctuations":[57],"in":[58,89,115,124,143,150,184],"channel":[61,74],"which":[62],"influenced":[64],"by":[65],"movements":[67],"presence":[69],"target":[71],"objects,":[72],"e.g.,":[73],"state":[75],"information":[76,131],"(CSI)":[77],"useful":[79],"estimate":[81],"target's":[83],"behavior":[84],"presence.":[86],"As":[87],"described":[88],"this":[90,119],"paper,":[91],"we":[92,173],"present":[93],"our":[94,139],"recently":[95],"local":[98],"area":[99],"network":[100],"(WLAN)-based":[101],"device-free":[102],"indoor":[103,116,151,186],"scheme":[105],"distributed":[107],"antennas":[108],"experimentally":[110],"assess":[111],"its":[112],"achievable":[113],"performance":[114,158],"scenarios.":[117],"For":[118],"approach,":[120],"feedback":[121],"beamforming":[122],"weights":[123],"WLAN":[125],"used":[128],"feature":[130],"for":[132],"machine-learning-based":[133],"algorithms.":[134],"Experiment":[135],"results":[136],"show":[137],"proposed":[140,182],"algorithm,":[141],"implemented":[142],"an":[144,185],"IEEE":[145],"802.11ac-based":[146],"WLAN,":[147],"works":[148],"well":[149],"environments.":[152],"We":[153],"also":[154],"discuss":[155],"how":[156],"much":[157],"improvement":[159],"can":[160],"be":[161],"when":[163],"CSI":[165],"given":[167],"properly.":[168],"Based":[169],"on":[170],"these":[171],"outcomes,":[172],"explore":[174],"applicability":[176],"effective":[178],"range":[179],"environment.":[187]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":3}],"updated_date":"2025-12-22T23:10:17.713674","created_date":"2025-10-10T00:00:00"}