{"id":"https://openalex.org/W4399323856","doi":"https://doi.org/10.1145/3643832.3661853","title":"Willow: Practical WiFi Backscatter Localization with Parallel Tags","display_name":"Willow: Practical WiFi Backscatter Localization with Parallel Tags","publication_year":2024,"publication_date":"2024-06-03","ids":{"openalex":"https://openalex.org/W4399323856","doi":"https://doi.org/10.1145/3643832.3661853"},"language":"en","primary_location":{"id":"doi:10.1145/3643832.3661853","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3643832.3661853","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3643832.3661853","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 22nd Annual International Conference on Mobile Systems, Applications and Services","raw_type":"proceedings-article"},"type":"article","indexed_in":["crossref"],"open_access":{"is_oa":true,"oa_status":"gold","oa_url":"https://dl.acm.org/doi/pdf/10.1145/3643832.3661853","any_repository_has_fulltext":null},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5102916326","display_name":"Jinyan Jiang","orcid":"https://orcid.org/0009-0008-0694-3815"},"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":true,"raw_author_name":"Jinyan Jiang","raw_affiliation_strings":["Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101446678","display_name":"Jiliang Wang","orcid":"https://orcid.org/0000-0003-1464-3245"},"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":"Jiliang Wang","raw_affiliation_strings":["Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5101982346","display_name":"Yijie Chen","orcid":"https://orcid.org/0009-0009-7455-5002"},"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":"Yijie Chen","raw_affiliation_strings":["Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5018657781","display_name":"Shuai Tong","orcid":"https://orcid.org/0000-0002-5039-5229"},"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":"Shuai Tong","raw_affiliation_strings":["Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5087010173","display_name":"Pengjin Xie","orcid":"https://orcid.org/0000-0002-8106-9952"},"institutions":[{"id":"https://openalex.org/I139759216","display_name":"Beijing University of Posts and Telecommunications","ror":"https://ror.org/04w9fbh59","country_code":"CN","type":"education","lineage":["https://openalex.org/I139759216"]}],"countries":["CN"],"is_corresponding":false,"raw_author_name":"Pengjin Xie","raw_affiliation_strings":["Beijing University of Posts and Telecommunications, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Beijing University of Posts and Telecommunications, Beijing, China","institution_ids":["https://openalex.org/I139759216"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5002075267","display_name":"Yihao Liu","orcid":"https://orcid.org/0009-0000-6912-3613"},"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":"Yihao Liu","raw_affiliation_strings":["Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5101877973","display_name":"Yunhao Liu","orcid":"https://orcid.org/0000-0001-8052-9200"},"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":"Yunhao Liu","raw_affiliation_strings":["Tsinghua University, Beijing, China"],"affiliations":[{"raw_affiliation_string":"Tsinghua University, Beijing, China","institution_ids":["https://openalex.org/I99065089"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":7,"corresponding_author_ids":["https://openalex.org/A5102916326"],"corresponding_institution_ids":["https://openalex.org/I99065089"],"apc_list":null,"apc_paid":null,"fwci":1.5256,"has_fulltext":false,"cited_by_count":7,"citation_normalized_percentile":{"value":0.82471055,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":90,"max":99},"biblio":{"volume":null,"issue":null,"first_page":"265","last_page":"277"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10326","display_name":"Indoor and Outdoor Localization Technologies","score":0.9997000098228455,"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":0.9997000098228455,"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/T11392","display_name":"Energy Harvesting in Wireless Networks","score":0.9950000047683716,"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":0.9941999912261963,"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/willow","display_name":"Willow","score":0.858448326587677},{"id":"https://openalex.org/keywords/backscatter","display_name":"Backscatter (email)","score":0.7725398540496826},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.571512758731842},{"id":"https://openalex.org/keywords/remote-sensing","display_name":"Remote sensing","score":0.4670984148979187},{"id":"https://openalex.org/keywords/telecommunications","display_name":"Telecommunications","score":0.24739906191825867},{"id":"https://openalex.org/keywords/wireless","display_name":"Wireless","score":0.1940689980983734},{"id":"https://openalex.org/keywords/geology","display_name":"Geology","score":0.17025724053382874},{"id":"https://openalex.org/keywords/botany","display_name":"Botany","score":0.07287496328353882}],"concepts":[{"id":"https://openalex.org/C2780844648","wikidata":"https://www.wikidata.org/wiki/Q36050","display_name":"Willow","level":2,"score":0.858448326587677},{"id":"https://openalex.org/C30354325","wikidata":"https://www.wikidata.org/wiki/Q204667","display_name":"Backscatter (email)","level":3,"score":0.7725398540496826},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.571512758731842},{"id":"https://openalex.org/C62649853","wikidata":"https://www.wikidata.org/wiki/Q199687","display_name":"Remote sensing","level":1,"score":0.4670984148979187},{"id":"https://openalex.org/C76155785","wikidata":"https://www.wikidata.org/wiki/Q418","display_name":"Telecommunications","level":1,"score":0.24739906191825867},{"id":"https://openalex.org/C555944384","wikidata":"https://www.wikidata.org/wiki/Q249","display_name":"Wireless","level":2,"score":0.1940689980983734},{"id":"https://openalex.org/C127313418","wikidata":"https://www.wikidata.org/wiki/Q1069","display_name":"Geology","level":0,"score":0.17025724053382874},{"id":"https://openalex.org/C59822182","wikidata":"https://www.wikidata.org/wiki/Q441","display_name":"Botany","level":1,"score":0.07287496328353882},{"id":"https://openalex.org/C86803240","wikidata":"https://www.wikidata.org/wiki/Q420","display_name":"Biology","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/3643832.3661853","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3643832.3661853","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3643832.3661853","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 22nd Annual International Conference on Mobile Systems, Applications and Services","raw_type":"proceedings-article"}],"best_oa_location":{"id":"doi:10.1145/3643832.3661853","is_oa":true,"landing_page_url":"https://doi.org/10.1145/3643832.3661853","pdf_url":"https://dl.acm.org/doi/pdf/10.1145/3643832.3661853","source":null,"license":"cc-by","license_id":"https://openalex.org/licenses/cc-by","version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 22nd Annual International Conference on Mobile Systems, Applications and Services","raw_type":"proceedings-article"},"sustainable_development_goals":[{"display_name":"Industry, innovation and infrastructure","id":"https://metadata.un.org/sdg/9","score":0.4699999988079071}],"awards":[{"id":"https://openalex.org/G6293625599","display_name":null,"funder_award_id":"62172250","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G6776778946","display_name":null,"funder_award_id":"U22A2031","funder_id":"https://openalex.org/F4320321001","funder_display_name":"National Natural Science Foundation of China"},{"id":"https://openalex.org/G8431760780","display_name":null,"funder_award_id":"61932013","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/W4399323856.pdf"},"referenced_works_count":44,"referenced_works":["https://openalex.org/W1656031401","https://openalex.org/W1983301216","https://openalex.org/W2069973845","https://openalex.org/W2102159398","https://openalex.org/W2103054609","https://openalex.org/W2129940694","https://openalex.org/W2307851164","https://openalex.org/W2495264776","https://openalex.org/W2547263323","https://openalex.org/W2761238645","https://openalex.org/W2763275681","https://openalex.org/W2770145176","https://openalex.org/W2873588347","https://openalex.org/W2885479472","https://openalex.org/W2898500478","https://openalex.org/W2929544480","https://openalex.org/W2949050565","https://openalex.org/W2964634644","https://openalex.org/W2982614876","https://openalex.org/W3004350858","https://openalex.org/W3033228838","https://openalex.org/W3033954745","https://openalex.org/W3046603724","https://openalex.org/W3083137266","https://openalex.org/W3100653015","https://openalex.org/W3148976827","https://openalex.org/W3152520837","https://openalex.org/W3191902679","https://openalex.org/W3194370845","https://openalex.org/W3208435040","https://openalex.org/W3211196822","https://openalex.org/W4214605592","https://openalex.org/W4283023968","https://openalex.org/W4306179687","https://openalex.org/W4317927957","https://openalex.org/W4376955605","https://openalex.org/W4380926330","https://openalex.org/W4380926540","https://openalex.org/W4380926844","https://openalex.org/W4380927032","https://openalex.org/W4386260536","https://openalex.org/W6635170509","https://openalex.org/W6759430831","https://openalex.org/W7052799716"],"related_works":["https://openalex.org/W4391375266","https://openalex.org/W2748952813","https://openalex.org/W4230552771","https://openalex.org/W2172273791","https://openalex.org/W4231848579","https://openalex.org/W1573227559","https://openalex.org/W2482383099","https://openalex.org/W2376326429","https://openalex.org/W1987250259","https://openalex.org/W2371279371"],"abstract_inverted_index":{"WiFi":[0,25,40,81,141],"backscatter":[1,36,47,54,59,66,94],"localization":[2,33,154],"is":[3,165],"a":[4,44,108,152],"promising":[5],"technology":[6],"for":[7,18,34],"the":[8,91,119,171],"Internet":[9],"of":[10,93,121,156],"Things.":[11],"However,":[12],"existing":[13],"works":[14],"cannot":[15],"work":[16,78],"well":[17],"large-scale":[19],"and":[20,56,107,135,159,167],"low-cost":[21,133],"tags":[22,37,131],"with":[23,38,60],"commodity":[24,39,140],"devices.":[26,41],"We":[27,42,63,116,128],"present":[28],"Willow,":[29],"which":[30,164],"provides":[31],"accurate":[32],"parallel":[35,97,126,162],"design":[43],"packet-level":[45],"orthogonal":[46,53],"modulation":[48,88],"method":[49,106,111,123],"to":[50,89,112],"generate":[51],"multiple":[52],"signals":[55,67],"support":[57],"in-band":[58,75],"ambient":[61],"WiFi.":[62],"show":[64,148],"that":[65,149],"can":[68],"be":[69],"effectively":[70],"extracted":[71],"even":[72],"under":[73],"strong":[74],"interference.":[76],"To":[77],"in":[79,124],"real":[80],"traffic,":[82],"we":[83,99,147],"propose":[84,100],"adaptive":[85],"packet":[86],"selection-based":[87],"guarantee":[90],"orthogonality":[92],"signals.":[95],"For":[96],"localization,":[98],"an":[101],"iterative":[102],"inter-tag":[103],"interference":[104],"cancellation":[105],"location":[109,114],"filtering":[110],"remove":[113],"ambiguity.":[115],"theoretically":[117],"analyze":[118],"effectiveness":[120],"our":[122],"supporting":[125],"tags.":[127],"prototype":[129],"Willow":[130,137,150],"using":[132],"hardware":[134],"implement":[136],"AP":[138],"on":[139],"NIC":[142],"AX200.":[143],"Through":[144],"extensive":[145],"experiments,":[146],"achieves":[151],"median":[153],"error":[155],"27":[157],"cm":[158],"supports":[160],"51":[161],"tags,":[163],"2\u00d7":[166],"17\u00d7":[168],"better":[169],"than":[170],"state-of-the-art":[172],"method.":[173]},"counts_by_year":[{"year":2026,"cited_by_count":1},{"year":2025,"cited_by_count":5},{"year":2024,"cited_by_count":1}],"updated_date":"2026-03-12T08:34:05.389933","created_date":"2025-10-10T00:00:00"}