{"id":"https://openalex.org/W3163581237","doi":"https://doi.org/10.1109/wcnc49053.2021.9417483","title":"Decimeter Level Indoor Localisation with a Single WiFi Router using CSI Fingerprinting","display_name":"Decimeter Level Indoor Localisation with a Single WiFi Router using CSI Fingerprinting","publication_year":2021,"publication_date":"2021-03-29","ids":{"openalex":"https://openalex.org/W3163581237","doi":"https://doi.org/10.1109/wcnc49053.2021.9417483","mag":"3163581237"},"language":"en","primary_location":{"id":"doi:10.1109/wcnc49053.2021.9417483","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc49053.2021.9417483","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-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/A5030698551","display_name":"Aravind Reddy Voggu","orcid":"https://orcid.org/0000-0002-6242-1164"},"institutions":[{"id":"https://openalex.org/I181514455","display_name":"International Institute of Information Technology Bangalore","ror":"https://ror.org/05h9eqy10","country_code":"IN","type":"education","lineage":["https://openalex.org/I181514455"]}],"countries":["IN"],"is_corresponding":true,"raw_author_name":"Aravind Reddy Voggu","raw_affiliation_strings":["Surgical and Assistive Robotics Lab, IIIT-Bangalore, India"],"affiliations":[{"raw_affiliation_string":"Surgical and Assistive Robotics Lab, IIIT-Bangalore, India","institution_ids":["https://openalex.org/I181514455"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5037499819","display_name":"Vikas Vazhayil","orcid":"https://orcid.org/0000-0002-8833-6814"},"institutions":[{"id":"https://openalex.org/I699696","display_name":"National Institute of Mental Health and Neurosciences","ror":"https://ror.org/0405n5e57","country_code":"IN","type":"healthcare","lineage":["https://openalex.org/I699696"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Vikas Vazhayil","raw_affiliation_strings":["NIMHANS, India"],"affiliations":[{"raw_affiliation_string":"NIMHANS, India","institution_ids":["https://openalex.org/I699696"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5061397479","display_name":"Madhav Rao","orcid":"https://orcid.org/0000-0003-2278-9148"},"institutions":[{"id":"https://openalex.org/I181514455","display_name":"International Institute of Information Technology Bangalore","ror":"https://ror.org/05h9eqy10","country_code":"IN","type":"education","lineage":["https://openalex.org/I181514455"]}],"countries":["IN"],"is_corresponding":false,"raw_author_name":"Madhav Rao","raw_affiliation_strings":["Surgical and Assistive Robotics Lab, IIIT-Bangalore, India"],"affiliations":[{"raw_affiliation_string":"Surgical and Assistive Robotics Lab, IIIT-Bangalore, India","institution_ids":["https://openalex.org/I181514455"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":3,"corresponding_author_ids":["https://openalex.org/A5030698551"],"corresponding_institution_ids":["https://openalex.org/I181514455"],"apc_list":null,"apc_paid":null,"fwci":0.7019,"has_fulltext":false,"cited_by_count":10,"citation_normalized_percentile":{"value":0.68900116,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":94,"max":97},"biblio":{"volume":null,"issue":null,"first_page":"1","last_page":"5"},"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/T11192","display_name":"Underwater Vehicles and Communication Systems","score":0.9965000152587891,"subfield":{"id":"https://openalex.org/subfields/2212","display_name":"Ocean 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":0.9868000149726868,"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/non-line-of-sight-propagation","display_name":"Non-line-of-sight propagation","score":0.9445633888244629},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.8173457980155945},{"id":"https://openalex.org/keywords/multipath-propagation","display_name":"Multipath propagation","score":0.708762526512146},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.5514765381813049},{"id":"https://openalex.org/keywords/random-forest","display_name":"Random forest","score":0.44051581621170044},{"id":"https://openalex.org/keywords/classifier","display_name":"Classifier (UML)","score":0.42264729738235474},{"id":"https://openalex.org/keywords/artificial-intelligence","display_name":"Artificial intelligence","score":0.33281147480010986},{"id":"https://openalex.org/keywords/channel","display_name":"Channel (broadcasting)","score":0.30357110500335693},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.2783454954624176},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.2407897710800171},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.19178727269172668}],"concepts":[{"id":"https://openalex.org/C154910267","wikidata":"https://www.wikidata.org/wiki/Q1740982","display_name":"Non-line-of-sight propagation","level":3,"score":0.9445633888244629},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.8173457980155945},{"id":"https://openalex.org/C161218011","wikidata":"https://www.wikidata.org/wiki/Q11827794","display_name":"Multipath propagation","level":3,"score":0.708762526512146},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.5514765381813049},{"id":"https://openalex.org/C169258074","wikidata":"https://www.wikidata.org/wiki/Q245748","display_name":"Random forest","level":2,"score":0.44051581621170044},{"id":"https://openalex.org/C95623464","wikidata":"https://www.wikidata.org/wiki/Q1096149","display_name":"Classifier (UML)","level":2,"score":0.42264729738235474},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.33281147480010986},{"id":"https://openalex.org/C127162648","wikidata":"https://www.wikidata.org/wiki/Q16858953","display_name":"Channel (broadcasting)","level":2,"score":0.30357110500335693},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.2783454954624176},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.2407897710800171},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.19178727269172668}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1109/wcnc49053.2021.9417483","is_oa":false,"landing_page_url":"https://doi.org/10.1109/wcnc49053.2021.9417483","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"2021 IEEE Wireless Communications and Networking Conference (WCNC)","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.6299999952316284}],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":22,"referenced_works":["https://openalex.org/W1627570574","https://openalex.org/W2005059864","https://openalex.org/W2032306167","https://openalex.org/W2044846595","https://openalex.org/W2111986491","https://openalex.org/W2143228105","https://openalex.org/W2345276999","https://openalex.org/W2554864015","https://openalex.org/W2774472083","https://openalex.org/W2783747512","https://openalex.org/W2888967269","https://openalex.org/W2889178137","https://openalex.org/W2934830435","https://openalex.org/W2937031311","https://openalex.org/W2980021985","https://openalex.org/W2991186030","https://openalex.org/W3011466106","https://openalex.org/W3037093268","https://openalex.org/W3048568051","https://openalex.org/W3049038995","https://openalex.org/W6753751715","https://openalex.org/W6754081196"],"related_works":["https://openalex.org/W2172272784","https://openalex.org/W2003817535","https://openalex.org/W2258106632","https://openalex.org/W2900608567","https://openalex.org/W2786742173","https://openalex.org/W1977989201","https://openalex.org/W2770110807","https://openalex.org/W2954228414","https://openalex.org/W4384927734","https://openalex.org/W2889302474"],"abstract_inverted_index":{"The":[0,13,76,99,134,171,241],"accurate":[1],"localisation":[2,72,84,118,167,217,254,268],"of":[3,16,22,24,36,88,219,231,259],"multiple":[4,266],"objects":[5,39],"and":[6,38,45,94,115,127,147,156,181,197,221,225,243,264],"people":[7,37],"in":[8,19,56,61,67,112,255,269],"indoor":[9,71,83],"environments":[10],"is":[11,15,32,109,122,161,174,235],"challenging.":[12],"problem":[14],"immense":[17],"importance":[18],"the":[20,68,113,159,238],"context":[21],"Internet":[23],"Things":[25],"(IoT)":[26],"applications.":[27],"In":[28],"many":[29],"scenarios,":[30],"there":[31],"a":[33,79,86,229],"high":[34],"density":[35],"which":[40,234],"need":[41,74],"to":[42,125,131,203,249],"be":[43,246],"spatially":[44],"temporally":[46],"tracked.":[47],"As":[48],"IoT":[49],"applications":[50,58,251],"find":[51],"increasing":[52],"use":[53],"not":[54],"only":[55],"industrial":[57,271],"but":[59],"also":[60],"novel":[62,80],"areas":[63],"such":[64],"as":[65],"healthcare":[66],"hospital":[69],"settings,":[70],"challenges":[73],"redress.":[75],"paper":[77],"addresses":[78],"technique":[81,244],"for":[82,85,91,165,185,194,223,228,237],"resolution":[87,230],"10":[89,191,232],"cm":[90,192],"Line-of-sight":[92],"(LoS),":[93],"Non-Line-of":[95],"sight":[96],"(NLoS)":[97],"setup.":[98],"received":[100],"signal":[101,108,139,160],"strength":[102],"indication":[103],"(RSSI)":[104],"based":[105],"on":[106,176],"WiFi":[107,142,275],"thoroughly":[110],"studied":[111],"past":[114],"has":[116],"offered":[117],"solutions,":[119],"yet":[120],"it":[121],"highly":[123,163],"sensitive":[124],"temporal":[126],"spatial":[128],"variance":[129],"due":[130],"multipath":[132,154],"effect.":[133],"Channel":[135],"state":[136],"information":[137],"(CSI)":[138],"transmitted":[140],"from":[141],"hardware":[143],"offers":[144],"both":[145],"space":[146],"time":[148],"information,":[149],"remains":[150],"relatively":[151],"stable":[152],"with":[153,169],"propagation":[155],"interference,":[157],"thereby":[158],"considered":[162],"suitable":[164],"designing":[166],"techniques":[168],"precision.":[170],"proposed":[172],"solution":[173],"designed":[175],"an":[177,270],"open":[178],"source":[179],"hardware,":[180],"CSI":[182],"fingerprinting":[183],"database":[184],"100":[186],"locations":[187],"that":[188],"are":[189,201],"spaced":[190],"apart":[193],"line-of-sight":[195],"(LOS)":[196],"Non-line-of-sight":[198],"(NLOS)":[199],"configurations":[200],"acquired":[202],"generate":[204],"classifier":[205,214],"models":[206],"using":[207,273],"different":[208],"Machine":[209],"Learning":[210],"algorithms.":[211],"Random":[212],"forest":[213],"model":[215],"showed":[216],"results":[218],"93.15%":[220],"98.01%":[222],"LOS":[224],"NLOS":[226],"respectively,":[227],"cm,":[233],"reported":[236],"first":[239],"time.":[240],"design":[242],"can":[245],"further":[247],"extended":[248],"various":[250],"including":[252],"patients":[253],"dense":[256],"waiting":[257],"room":[258],"hospitals,":[260],"home":[261],"medical":[262],"care,":[263],"other":[265],"tools":[267],"environment":[272],"existing":[274],"router":[276],"infrastructure.":[277]},"counts_by_year":[{"year":2025,"cited_by_count":3},{"year":2024,"cited_by_count":2},{"year":2023,"cited_by_count":3},{"year":2022,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2025-10-10T00:00:00"}