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Compared with traditional techniques, the newly-proposed positioning scheme takes user\u2019s context into consideration, using Radio Frequency Fingerprint Vector (RFFV) as the signal feature to identify and detect the location of the user in the hospital. Besides, space and time factors are considered as the constraints to reduce the positioning errors. Experiment result in hospital environment proves the performance of the scheme is better than those traditional schemes without error correction thus can successfully judge patient\u2019s activity and prevent some accidents.<\/jats:p>","DOI":"10.3233\/rft-18109","type":"journal-article","created":{"date-parts":[[2018,11,13]],"date-time":"2018-11-13T15:54:29Z","timestamp":1542124469000},"page":"75-87","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":1,"title":["A context-awareness positioning scheme in hospital WLAN environment"],"prefix":"10.1177","volume":"9","author":[{"given":"Yang","family":"Zhou","sequence":"first","affiliation":[{"name":"Department of Information Management, School of Economics and Management, Beijing Jiaotong University, Beijing, China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Runtong","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of 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