Title :
RF-OPT: A Range-Free Online Person Tracking System
Author :
Wang, Jing ; An, Xueli ; Prasad, R. Venkatesha ; Niemegeers, I.G.M.M.
Author_Institution :
Dept. of Electron. Eng. & Med. Comput. Sci., Delft Univ. of Technol.
fDate :
Nov. 29 2006-Dec. 1 2006
Abstract :
In this paper, we present an indoor localization scheme which is built for location-based services for context-aware applications in health-care. We set forth from our earlier work on localization using RSSI which employs range-based estimation algorithm. To circumvent the unreliability of RSSI, we explored a weighted range-free estimation algorithm. The results show that range-free estimation provides an adequate accuracy and at the same time alleviates the laborious offline measurements required by the popular range-based algorithms. We discuss some features, experiences and preliminary measurements here. The ideas presented in this paper are expected to open up the multitude of further work in the field of localization
Keywords :
health care; medical computing; medical information systems; ubiquitous computing; context-aware application; health-care; indoor localization; location-based services; range-free estimation; range-free online person tracking system; Antenna measurements; Context-aware services; Global Positioning System; Hardware; Temperature sensors; Thermal sensors; Time measurement; Ultrasonic imaging; Ultrasonic variables measurement; Wearable sensors; Tmote; health-care; locallzation; range-free;
Conference_Titel :
Pervasive Health Conference and Workshops, 2006
Conference_Location :
Innsbruck
Print_ISBN :
1-4244-1085-1
Electronic_ISBN :
1-4244-1086-X
DOI :
10.1109/PCTHEALTH.2006.361677
