Abstract
Wireless LAN (WLAN) positioning has received much attention recently
and location fingerprinting has been widely accepted as an effect method. In
WLAN positioning, the mobile user's (MU) orientation has a significant
impact on the received signal strength from an access point. Many
researchers have noticed this impact and considered it when the
fingerprint database is generated. In this paper, directional information
is used not only to increase the positioning accuracy, but also estimate
the MU's orientation. A direction-based positioning fingerprinting
technique is proposed. An experiment was carried out to verify the
new approach. The results show the direction based approach can
successfully localize the MU and estimate the MU's direction.