Affiliations: [a] Department of Information Management, School of Economics and Management, Beijing Jiaotong University, Beijing, China
| [b] Wee Kim Wee School of Communication and Information, Nanyang Technological University, Singapore
Corresponding author: Xiaopu Shang, Department of Information Management, School of Economics and Management, Beijing Jiaotong University, Beijing, China. E-mail: [email protected].
Abstract: Positioning technologies can be generally divided into indoor and outdoor application scenarios. This paper focuses on an indoor positioning system which is able to be used in the Wireless Local Area Network environment in the hospitals. Compared with traditional techniques, the newly-proposed positioning scheme takes user’s 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’s activity and prevent some accidents.
Keywords: Positioning, in-door, radio frequency fingerprint vector, WLAN, hospital