{"id":"https://openalex.org/W4408812572","doi":"https://doi.org/10.1145/3725850","title":"Exploiting Dispersion Effect of Signals for Accurate Indoor WiFi Localization","display_name":"Exploiting Dispersion Effect of Signals for Accurate Indoor WiFi Localization","publication_year":2025,"publication_date":"2025-03-25","ids":{"openalex":"https://openalex.org/W4408812572","doi":"https://doi.org/10.1145/3725850"},"language":"en","primary_location":{"id":"doi:10.1145/3725850","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3725850","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3725850","source":{"id":"https://openalex.org/S170502224","display_name":"ACM Transactions on Sensor Networks","issn_l":"1550-4859","issn":["1550-4859","1550-4867"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Sensor Networks","raw_type":"journal-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"hybrid","oa_url":"https://dl.acm.org/doi/pdf/10.1145/3725850","any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102810939","display_name":"Y. Z. Sun","orcid":"https://orcid.org/0000-0001-9384-5915"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yimiao Sun","raw_affiliation_strings":["School of Software and BNRist, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0001-9384-5915","affiliations":[{"raw_affiliation_string":"School of Software and BNRist, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5060129988","display_name":"Yuan He","orcid":"https://orcid.org/0000-0002-6676-4009"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yuan He","raw_affiliation_strings":["School of Software and BNRist, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-6676-4009","affiliations":[{"raw_affiliation_string":"School of Software and BNRist, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5010637475","display_name":"Jiacheng Zhang","orcid":"https://orcid.org/0000-0001-8034-6420"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Jiacheng Zhang","raw_affiliation_strings":["School of Software and BNRist, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0001-8034-6420","affiliations":[{"raw_affiliation_string":"School of Software and BNRist, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5102870211","display_name":"Xin Na","orcid":"https://orcid.org/0000-0002-0986-5209"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xin Na","raw_affiliation_strings":["School of Software and BNRist, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-0986-5209","affiliations":[{"raw_affiliation_string":"School of Software and BNRist, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5044701932","display_name":"Yande Chen","orcid":"https://orcid.org/0009-0000-3518-0927"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Yande Chen","raw_affiliation_strings":["School of Software and BNRist, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0009-0000-3518-0927","affiliations":[{"raw_affiliation_string":"School of Software and BNRist, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5026671302","display_name":"Weiguo Wang","orcid":"https://orcid.org/0000-0002-6207-2347"},"institutions":[{"id":"https://openalex.org/I99065089","display_name":"Tsinghua University","ror":"https://ror.org/03cve4549","country_code":"CN","type":"education","lineage":["https://openalex.org/I99065089"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Weiguo Wang","raw_affiliation_strings":["School of Software and BNRist, Tsinghua University, Beijing, China"],"raw_orcid":"https://orcid.org/0000-0002-6207-2347","affiliations":[{"raw_affiliation_string":"School of Software and BNRist, Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101563432","display_name":"Xiuzhen Guo","orcid":"https://orcid.org/0000-0002-8655-8130"},"institutions":[{"id":"https://openalex.org/I76130692","display_name":"Zhejiang University","ror":"https://ror.org/00a2xv884","country_code":"CN","type":"education","lineage":["https://openalex.org/I76130692"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Xiuzhen Guo","raw_affiliation_strings":["College of Control Science and Engineering, Zhejiang University, Hangzhou, China"],"raw_orcid":"https://orcid.org/0000-0002-8655-8130","affiliations":[{"raw_affiliation_string":"College of Control Science and Engineering, Zhejiang University, Hangzhou, China","institution_ids":["https://openalex.org/I76130692"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.4626,"has_fulltext":false,"cited_by_count":1,"citation_normalized_percentile":{"value":0.61022147,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":91,"max":95},"biblio":{"volume":"21","issue":"3","first_page":"1","last_page":"21"},"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":0.9961000084877014,"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/T13121","display_name":"Radio Wave Propagation Studies","score":0.9958999752998352,"subfield":{"id":"https://openalex.org/subfields/2202","display_name":"Aerospace 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":0.7156767249107361},{"id":"https://openalex.org/keywords/dispersion","display_name":"Dispersion (optics)","score":0.5739963054656982},{"id":"https://openalex.org/keywords/wireless-sensor-network","display_name":"Wireless sensor network","score":0.5450546741485596},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.34323787689208984},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.32636433839797974},{"id":"https://openalex.org/keywords/computer-network","display_name":"Computer network","score":0.31133341789245605},{"id":"https://openalex.org/keywords/physics","display_name":"Physics","score":0.12269213795661926},{"id":"https://openalex.org/keywords/optics","display_name":"Optics","score":0.1200760006904602}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7156767249107361},{"id":"https://openalex.org/C177562468","wikidata":"https://www.wikidata.org/wiki/Q182893","display_name":"Dispersion (optics)","level":2,"score":0.5739963054656982},{"id":"https://openalex.org/C24590314","wikidata":"https://www.wikidata.org/wiki/Q336038","display_name":"Wireless sensor network","level":2,"score":0.5450546741485596},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.34323787689208984},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.32636433839797974},{"id":"https://openalex.org/C31258907","wikidata":"https://www.wikidata.org/wiki/Q1301371","display_name":"Computer network","level":1,"score":0.31133341789245605},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.12269213795661926},{"id":"https://openalex.org/C120665830","wikidata":"https://www.wikidata.org/wiki/Q14620","display_name":"Optics","level":1,"score":0.1200760006904602}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3725850","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3725850","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3725850","source":{"id":"https://openalex.org/S170502224","display_name":"ACM Transactions on Sensor Networks","issn_l":"1550-4859","issn":["1550-4859","1550-4867"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Sensor Networks","raw_type":"journal-article"}],"best_oa_location":{"id":"doi:10.1145/3725850","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3725850","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3725850","source":{"id":"https://openalex.org/S170502224","display_name":"ACM Transactions on Sensor Networks","issn_l":"1550-4859","issn":["1550-4859","1550-4867"],"is_oa":false,"is_in_doaj":false,"is_core":true,"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"journal"},"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"ACM Transactions on Sensor Networks","raw_type":"journal-article"},"sustainable_development_goals":[],"awards":[{"id":"https://openalex.org/G6306523624","display_name":null,"funder_award_id":"No.\u00a062425207, No.\u00a0U21B2007 and No.\u00a062472379","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"}],"funders":[{"id":"https://openalex.org/F4320321001","display_name":"National Natural Science Foundation of China","ror":"https://ror.org/01h0zpd94"}],"has_content":{"pdf":true,"grobid_xml":false},"content_urls":{"pdf":"https://content.openalex.org/works/W4408812572.pdf"},"referenced_works_count":27,"referenced_works":["https://openalex.org/W1785951510","https://openalex.org/W1983301216","https://openalex.org/W2084575792","https://openalex.org/W2147628505","https://openalex.org/W2526606216","https://openalex.org/W2904555174","https://openalex.org/W2944778709","https://openalex.org/W2964988056","https://openalex.org/W2983426205","https://openalex.org/W3083137266","https://openalex.org/W3093900912","https://openalex.org/W3110074321","https://openalex.org/W3156425623","https://openalex.org/W3186815770","https://openalex.org/W3194370845","https://openalex.org/W3210294081","https://openalex.org/W4300519537","https://openalex.org/W4306179646","https://openalex.org/W4312886776","https://openalex.org/W4389105322","https://openalex.org/W4395668293","https://openalex.org/W4397026605","https://openalex.org/W4401508462","https://openalex.org/W4402557432","https://openalex.org/W4404035361","https://openalex.org/W4408343473","https://openalex.org/W6782924428"],"related_works":["https://openalex.org/W1975451135","https://openalex.org/W3148968234","https://openalex.org/W2890570089","https://openalex.org/W2989915292","https://openalex.org/W2295628284","https://openalex.org/W145760256","https://openalex.org/W2028086369","https://openalex.org/W2123841989","https://openalex.org/W2129477171","https://openalex.org/W2110892966"],"abstract_inverted_index":{"WiFi-based":[0],"device":[1],"localization":[2,166,192],"is":[3,54,126,138,170],"a":[4,39,67,134,148],"key":[5],"technology":[6],"for":[7,31,99],"smart":[8],"applications,":[9],"while":[10],"most":[11],"of":[12,52,71,89,144,157,168,177],"which":[13],"rely":[14],"on":[15],"LoS":[16,27,62],"signals":[17,28,58,88],"to":[18,43,55,59,92,115,128,140,151,183],"work.":[19],"However,":[20],"in":[21,124,185],"real-world":[22],"indoor":[23],"environments,":[24],"very":[25],"few":[26],"are":[29],"usable":[30],"accurate":[32],"localization.":[33],"This":[34],"article":[35],"presents":[36],"Bifrost":[37,53,145,169,182],",":[38],"novel":[40],"hardware-software":[41],"co-design":[42],"cope":[44],"with":[45,181],"this":[46],"practical":[47],"problem.":[48],"The":[49,159],"core":[50],"idea":[51],"reinvent":[56],"WiFi":[57],"provide":[60],"sufficient":[61],"signals.":[63],"Specifically,":[64],"we":[65],"present":[66],"low-cost":[68],"plug-in":[69],"design":[70],"leaky":[72],"wave":[73],"antenna":[74,112],"(LWA)":[75],"that":[76,163,176],"can":[77,189],"generate":[78],"orthogonal":[79],"polarized":[80],"signals:":[81],"On":[82,103],"the":[83,100,104,107,111,142,153,164,191],"one":[84],"hand,":[85,106],"LWA":[86],"disperses":[87],"different":[90,93,119],"frequencies":[91],"angles,":[94],"thus":[95],"providing":[96],"AoA":[97],"information":[98,123],"localized":[101],"target.":[102],"other":[105],"target":[108],"further":[109],"leverages":[110],"polarization":[113],"mismatch":[114],"distinguish":[116],"AoAs":[117],"from":[118],"LWAs.":[120],"Besides,":[121,133],"fine-grained":[122],"CSI":[125],"exploited":[127],"mitigate":[129],"multipath":[130],"and":[131,146,155],"noise.":[132],"dedicated":[135],"Kalman":[136],"filter":[137],"proposed":[139],"facilitate":[141],"cooperation":[143],"SpotFi,":[147],"state-of-the-art":[149],"approach,":[150],"enhance":[152],"availability":[154],"accuracy":[156],"SpotFi.":[158,178],"evaluation":[160],"results":[161],"show":[162],"median":[165],"error":[167,193],"0.81":[171],"m,":[172],"52.35%":[173],"less":[174],"than":[175],"When":[179],"combined":[180],"work":[184],"realistic":[186],"settings,":[187],"SpotFi":[188],"reduce":[190],"by":[194],"33.54%.":[195]},"counts_by_year":[{"year":2025,"cited_by_count":1}],"updated_date":"2026-05-21T06:26:12.895304","created_date":"2025-10-10T00:00:00"}
