{"id":"https://openalex.org/W2090428366","doi":"https://doi.org/10.1145/2639108.2641755","title":"Demo","display_name":"Demo","publication_year":2014,"publication_date":"2014-09-05","ids":{"openalex":"https://openalex.org/W2090428366","doi":"https://doi.org/10.1145/2639108.2641755","mag":"2090428366"},"language":"en","primary_location":{"id":"doi:10.1145/2639108.2641755","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2639108.2641755","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 20th annual international conference on Mobile computing and networking","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/A5004847400","display_name":"Andrew T. Irish","orcid":null},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":true,"raw_author_name":"Andrew Irish","raw_affiliation_strings":["University of California, Santa Barbara, Santa Barbara, CA, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Santa Barbara, Santa Barbara, CA, USA","institution_ids":["https://openalex.org/I154570441"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5064731578","display_name":"Jason T. Isaacs","orcid":null},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jason Isaacs","raw_affiliation_strings":["University of California, Santa Barbara, Santa Barbara, CA, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Santa Barbara, Santa Barbara, CA, USA","institution_ids":["https://openalex.org/I154570441"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5011379708","display_name":"Daniel Iland","orcid":null},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Daniel Iland","raw_affiliation_strings":["University of California, Santa Barbara, Santa Barbara, CA, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Santa Barbara, Santa Barbara, CA, USA","institution_ids":["https://openalex.org/I154570441"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5065218317","display_name":"Jo\u00e3o P. Hespanha","orcid":"https://orcid.org/0000-0003-2809-4718"},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Jo\u00e3o Hespanha","raw_affiliation_strings":["University of California, Santa Barbara, Santa Barbara, CA, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Santa Barbara, Santa Barbara, CA, USA","institution_ids":["https://openalex.org/I154570441"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5041600302","display_name":"Elizabeth Belding","orcid":"https://orcid.org/0000-0002-2155-6740"},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Elizabeth Belding","raw_affiliation_strings":["University of California, Santa Barbara, Santa Barbara, CA, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Santa Barbara, Santa Barbara, CA, USA","institution_ids":["https://openalex.org/I154570441"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5089061562","display_name":"Upamanyu Madhow","orcid":"https://orcid.org/0000-0002-7800-4138"},"institutions":[{"id":"https://openalex.org/I154570441","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463","country_code":"US","type":"education","lineage":["https://openalex.org/I154570441"]}],"countries":["US"],"is_corresponding":false,"raw_author_name":"Upamanyu Madhow","raw_affiliation_strings":["University of California, Santa Barbara, Santa Barbara, CA, USA"],"affiliations":[{"raw_affiliation_string":"University of California, Santa Barbara, Santa Barbara, CA, USA","institution_ids":["https://openalex.org/I154570441"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":6,"corresponding_author_ids":["https://openalex.org/A5004847400"],"corresponding_institution_ids":["https://openalex.org/I154570441"],"apc_list":null,"apc_paid":null,"fwci":0.4187,"has_fulltext":false,"cited_by_count":4,"citation_normalized_percentile":{"value":0.69069085,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":96},"biblio":{"volume":null,"issue":null,"first_page":"283","last_page":"286"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9994999766349792,"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":0.9994999766349792,"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":0.9932000041007996,"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/T12042","display_name":"Satellite Communication Systems","score":0.989300012588501,"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/gnss-applications","display_name":"GNSS applications","score":0.8430376052856445},{"id":"https://openalex.org/keywords/handset","display_name":"Handset","score":0.7979614734649658},{"id":"https://openalex.org/keywords/non-line-of-sight-propagation","display_name":"Non-line-of-sight propagation","score":0.7555471658706665},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7393766641616821},{"id":"https://openalex.org/keywords/global-positioning-system","display_name":"Global Positioning System","score":0.688340961933136},{"id":"https://openalex.org/keywords/satellite-system","display_name":"Satellite system","score":0.522369921207428},{"id":"https://openalex.org/keywords/satellite-navigation","display_name":"Satellite navigation","score":0.49449703097343445},{"id":"https://openalex.org/keywords/real-time-computing","display_name":"Real-time computing","score":0.46359413862228394},{"id":"https://openalex.org/keywords/geolocation","display_name":"Geolocation","score":0.4361857771873474},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.43429797887802124},{"id":"https://openalex.org/keywords/radio-navigation","display_name":"Radio navigation","score":0.41564545035362244},{"id":"https://openalex.org/keywords/cellular-network","display_name":"Cellular network","score":0.41473448276519775},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.12289512157440186}],"concepts":[{"id":"https://openalex.org/C14279187","wikidata":"https://www.wikidata.org/wiki/Q5514012","display_name":"GNSS applications","level":3,"score":0.8430376052856445},{"id":"https://openalex.org/C2779971919","wikidata":"https://www.wikidata.org/wiki/Q1378949","display_name":"Handset","level":2,"score":0.7979614734649658},{"id":"https://openalex.org/C154910267","wikidata":"https://www.wikidata.org/wiki/Q1740982","display_name":"Non-line-of-sight propagation","level":3,"score":0.7555471658706665},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7393766641616821},{"id":"https://openalex.org/C60229501","wikidata":"https://www.wikidata.org/wiki/Q18822","display_name":"Global Positioning System","level":2,"score":0.688340961933136},{"id":"https://openalex.org/C2778027091","wikidata":"https://www.wikidata.org/wiki/Q25346003","display_name":"Satellite system","level":4,"score":0.522369921207428},{"id":"https://openalex.org/C36301306","wikidata":"https://www.wikidata.org/wiki/Q179435","display_name":"Satellite navigation","level":3,"score":0.49449703097343445},{"id":"https://openalex.org/C79403827","wikidata":"https://www.wikidata.org/wiki/Q3988","display_name":"Real-time computing","level":1,"score":0.46359413862228394},{"id":"https://openalex.org/C22041718","wikidata":"https://www.wikidata.org/wiki/Q638949","display_name":"Geolocation","level":2,"score":0.4361857771873474},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.43429797887802124},{"id":"https://openalex.org/C530343408","wikidata":"https://www.wikidata.org/wiki/Q1413038","display_name":"Radio navigation","level":3,"score":0.41564545035362244},{"id":"https://openalex.org/C153646914","wikidata":"https://www.wikidata.org/wiki/Q535695","display_name":"Cellular network","level":2,"score":0.41473448276519775},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.12289512157440186},{"id":"https://openalex.org/C136764020","wikidata":"https://www.wikidata.org/wiki/Q466","display_name":"World Wide Web","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2639108.2641755","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2639108.2641755","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 20th annual international conference on Mobile computing and networking","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[{"score":0.8299999833106995,"display_name":"Sustainable cities and communities","id":"https://metadata.un.org/sdg/11"}],"awards":[{"id":"https://openalex.org/G768855555","display_name":null,"funder_award_id":"W911NF-09-0001","funder_id":"https://openalex.org/F4320332500","funder_display_name":"University of California, Santa Barbara"}],"funders":[{"id":"https://openalex.org/F4320332500","display_name":"University of California, Santa Barbara","ror":"https://ror.org/02t274463"}],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W1970466451","https://openalex.org/W1984814084","https://openalex.org/W1999471323","https://openalex.org/W2085299592"],"related_works":["https://openalex.org/W4250237313","https://openalex.org/W1994048345","https://openalex.org/W2125440076","https://openalex.org/W2539771124","https://openalex.org/W2059816400","https://openalex.org/W2028707555","https://openalex.org/W1999726882","https://openalex.org/W2068422469","https://openalex.org/W311844660","https://openalex.org/W2365327061"],"abstract_inverted_index":{"Due":[0],"to":[1,96,108],"frequent":[2],"non-line-of-sight":[3],"(NLOS)":[4],"signal":[5],"reception,":[6],"geopositioning":[7],"using":[8],"Global":[9],"Navigation":[10],"Satellite":[11],"Systems":[12],"(GNSS),":[13],"such":[14,45],"as":[15,46,61],"GPS,":[16],"is":[17],"unreliable":[18],"in":[19,59,102,114],"urban":[20,43,86,104],"environments,":[21],"with":[22,106],"errors":[23],"on":[24],"the":[25,80],"order":[26,110],"of":[27,29,69,84,111],"tens":[28],"meters.":[30],"This":[31],"poses":[32],"a":[33,99],"major":[34],"problem":[35],"for":[36],"mobile":[37,100],"services":[38],"that":[39],"benefit":[40],"from":[41],"accurate":[42],"localization,":[44,60],"navigation,":[47],"geofencing,":[48],"and":[49],"hyperlocal":[50],"advertising":[51],"applications.":[52],"Mobile":[53],"network":[54],"operators":[55],"also":[56],"seek":[57],"improvements":[58],"government":[62],"regulators":[63],"increase":[64],"handset":[65],"location":[66,87],"accuracy":[67],"requirements":[68],"enhanced":[70],"991":[71],"service":[72],"(e911).":[73],"In":[74],"our":[75,85],"demonstration,":[76],"we":[77],"will":[78,93],"present":[79],"most":[81],"recent":[82],"prototype":[83],"improvement":[88],"technology,":[89],"called":[90],"ShadowMaps,":[91],"which":[92],"be":[94],"shown":[95],"accurately":[97],"track":[98],"device":[101],"an":[103,109],"environment,":[105],"up":[107],"magnitude":[112],"reduction":[113],"GNSS":[115],"positioning":[116],"error.":[117]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2017,"cited_by_count":2}],"updated_date":"2025-11-06T03:46:38.306776","created_date":"2016-06-24T00:00:00"}