Title :
A practical path loss model for indoor WiFi positioning enhancement
Author :
Bose, Atreyi ; Chuan Heng Foh
Author_Institution :
Nanyang Technol. Univ., Singapore
Abstract :
Positioning within a local area refers to technology whereby each node is self-aware of its position. Based on empirical study, this paper proposes an enhancement to the path loss model in the indoor environment for improved accuracy in the relationship between distance and received signal strength. We further demonstrate the potential of our model for the WiFi positioning system, where the mean errors in the distance estimation are 2.3 m and 2.9 m for line of sight and non line of sight environments, respectively.
Keywords :
indoor radio; time-of-arrival estimation; wireless LAN; indoor WiFi positioning enhancement; path loss model; Antenna measurements; Computer vision; Databases; Global Positioning System; Indoor environments; Radio transmitters; Synchronization; Time difference of arrival; Time measurement; Wireless LAN;
Conference_Titel :
Information, Communications & Signal Processing, 2007 6th International Conference on
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-0982-2
Electronic_ISBN :
978-1-4244-0983-9
DOI :
10.1109/ICICS.2007.4449717
