{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T15:00:19Z","timestamp":1753887619929,"version":"3.41.2"},"reference-count":40,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,8,26]],"date-time":"2021-08-26T00:00:00Z","timestamp":1629936000000},"content-version":"vor","delay-in-days":237,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100004763","name":"Natural Science Foundation of Inner Mongolia Autonomous Region","doi-asserted-by":"publisher","award":["2019MS06030"],"award-info":[{"award-number":["2019MS06030"]}],"id":[{"id":"10.13039\/501100004763","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["41761086"],"award-info":[{"award-number":["41761086"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Wireless Communications and Mobile Computing"],"published-print":{"date-parts":[[2021,1]]},"abstract":"<jats:p>With the convenience brought by Location\u2010based service (LBS), users\u2019 requirements for indoor positioning accuracy are getting higher than ever. However, many traditional indoor WiFi positioning methods may result in limited positioning accuracy because of the limited information of Received Signal Strength (RSS) of WiFi signal. This paper proposed a context\u2010aware assisted WiFi positioning method (CAA\u2010PM), which uses context information (i.e., light and sound) to assist WiFi\u2010RSS for indoor positioning and uses an improved variable weight dynamic KNN fingerprint identification algorithm (VWD\u2010KNN). Finally, experiments are carried out by using the dataset collected in both a closed laboratory and an open long corridor, and it is shown that the proposed algorithm substantially improves the localization accuracy comparing with other three classical algorithms.<\/jats:p>","DOI":"10.1155\/2021\/6683456","type":"journal-article","created":{"date-parts":[[2021,8,27]],"date-time":"2021-08-27T03:48:37Z","timestamp":1630036117000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["A Context\u2010Aware Assisted WiFi Positioning Method"],"prefix":"10.1155","volume":"2021","author":[{"given":"Qi","family":"Feng","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3294-6303","authenticated-orcid":false,"given":"Bing","family":"Jia","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xi","family":"Luo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sha","family":"Li","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2021,8,26]]},"reference":[{"key":"e_1_2_9_1_2","first-page":"27","article-title":"Satellite positioning based on coordinate search grid assisted by WiFi","volume":"45","author":"Jingchao X.","year":"2020","journal-title":"Geographic Information of Surveying and Mapping"},{"key":"e_1_2_9_2_2","first-page":"190","article-title":"A new location algorithm for indoor robots based on WIFI","volume":"19","author":"Guihua Y.","year":"2019","journal-title":"Science Technology and Engineering"},{"key":"e_1_2_9_3_2","first-page":"249","article-title":"Design of indoor positioning system based on WiFi technology","volume":"15","author":"Zhao Y.","year":"2019","journal-title":"Computer Knowledge and Technology"},{"key":"e_1_2_9_4_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.enbuild.2019.109754"},{"key":"e_1_2_9_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.measurement.2020.107534"},{"key":"e_1_2_9_6_2","doi-asserted-by":"publisher","DOI":"10.1002\/btpr.2945"},{"key":"e_1_2_9_7_2","first-page":"40","article-title":"Classification of traditional Chinese medicine patients with stomachache based on KNN","volume":"27","author":"Jingwen W.","year":"2019","journal-title":"Computer and Information Technology"},{"key":"e_1_2_9_8_2","first-page":"172","article-title":"Research on network bad information filtering system based on K nearest neighbor algorithm","volume":"38","author":"Lieh T.","year":"2019","journal-title":"Computer Technology and Automation"},{"key":"e_1_2_9_9_2","article-title":"Observation of gravitational waves from a binary black hole merger","volume":"116","author":"Abbott B. 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