Title :
An indoor location scheme based on wireless local area networks
Author :
Wang, Chin-Liang ; Chiou, Yih-Shyh ; Yeh, Sheng-Cheng
Author_Institution :
Dept. of Electr. Eng., Nat. Tsing Hua Univ., Hsinchu, Taiwan
Abstract :
This paper presents an indoor location scheme based on wireless local area networks, where the position of a mobile terminal is estimated according to the measured signal-to-noise ratio (SNR) information from multiple access points. With the antenna pattern-measurement method for measuring the SNRs, pretty good location estimates can be obtained. Our experimental results show that more than 85 percent of the estimated locations have error distances less than two meters.
Keywords :
antenna radiation patterns; indoor communication; radio direction-finding; wireless LAN; SNR information; antenna pattern-measurement method; indoor location scheme; mobile terminal; multiple access points; signal-to-noise ratio; wireless local area networks; Antenna measurements; Databases; Floors; Global Positioning System; Land mobile radio cellular systems; Mobile communication; Phase estimation; Phase measurement; Signal to noise ratio; Wireless LAN;
Conference_Titel :
Consumer Communications and Networking Conference, 2005. CCNC. 2005 Second IEEE
Print_ISBN :
0-7803-8784-8
DOI :
10.1109/CCNC.2005.1405248
