TY - GEN
T1 - Exploiting user movement direction and hidden access point for smartphone localization
AU - Kim, Eugene
AU - Yoo, Seungho
AU - Kim, Hwangnam
PY - 2013
Y1 - 2013
N2 - In this paper, we propose a GPS-less localization method, called Hidden Access Point Estimation-based Localization or HAPEL to pinpoint user's current position in an underground or indoor environment, especially where APs are placed scarcely in that two or less Wi-Fi access points are within the scanning range. Conceptually, HAPEL enhances the weighted centroid localization by exploiting hidden access points and estimating the direction of user movement. The movement direction can be estimated with digital compass, accelerometer and gyroscope all of which are usually installed on smartphones, and the estimation result is used to choose which hidden access points participate in the weighted centroid localization. We have conducted a performance evaluation study on HAPEL in an empirical test-bed. The results indicate that HAPEL improves the accuracy of the weighted centroid localization significantly.
AB - In this paper, we propose a GPS-less localization method, called Hidden Access Point Estimation-based Localization or HAPEL to pinpoint user's current position in an underground or indoor environment, especially where APs are placed scarcely in that two or less Wi-Fi access points are within the scanning range. Conceptually, HAPEL enhances the weighted centroid localization by exploiting hidden access points and estimating the direction of user movement. The movement direction can be estimated with digital compass, accelerometer and gyroscope all of which are usually installed on smartphones, and the estimation result is used to choose which hidden access points participate in the weighted centroid localization. We have conducted a performance evaluation study on HAPEL in an empirical test-bed. The results indicate that HAPEL improves the accuracy of the weighted centroid localization significantly.
UR - http://www.scopus.com/inward/record.url?scp=84891586616&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=84891586616&partnerID=8YFLogxK
U2 - 10.1109/ICUFN.2013.6614859
DO - 10.1109/ICUFN.2013.6614859
M3 - Conference contribution
AN - SCOPUS:84891586616
SN - 9781467359900
T3 - International Conference on Ubiquitous and Future Networks, ICUFN
SP - 450
EP - 455
BT - ICUFN 2013 - 5th International Conference on Ubiquitous and Future Networks
T2 - 5th International Conference on Ubiquitous and Future Networks, ICUFN 2013
Y2 - 2 July 2013 through 5 July 2013
ER -