TY - GEN
T1 - Energy efficient assisted GPS measurement and path reconstruction for people tracking
AU - Ouyang, Robin Wentao
AU - Wong, Albert Kai Sun
AU - Chiang, Mung
AU - Woo, Kam Tim
AU - Zhang, Victoria Ying
AU - Kim, Hongseok
AU - Xiao, Ming
PY - 2010
Y1 - 2010
N2 - In the use of a wearable GPS and cellular tracker for applications such as elderly tracking, device power consumption is an important consideration. To save power, assisted GPS (AGPS) location fixes should not be performed frequently. On the other hand, we also do not want to lose important information about the user's mobility patterns and routines. To solve this dilemma, in this paper, we present the design of a system that intelligently schedules on-line AGPS location fixes only when necessary based on information extracted from user's historical mobility data, and then reconstruct the user path based on these sparsely taken on-line location fixes. Experimental results show that our on-line algorithm can significantly reduce the number of AGPS fixes needed and the reconstruction method works well without a priori knowledge of a map and streets information.
AB - In the use of a wearable GPS and cellular tracker for applications such as elderly tracking, device power consumption is an important consideration. To save power, assisted GPS (AGPS) location fixes should not be performed frequently. On the other hand, we also do not want to lose important information about the user's mobility patterns and routines. To solve this dilemma, in this paper, we present the design of a system that intelligently schedules on-line AGPS location fixes only when necessary based on information extracted from user's historical mobility data, and then reconstruct the user path based on these sparsely taken on-line location fixes. Experimental results show that our on-line algorithm can significantly reduce the number of AGPS fixes needed and the reconstruction method works well without a priori knowledge of a map and streets information.
KW - Assisted Global Positioning System (AGPS)
KW - Energy efficiency
KW - Intelligent location fix
KW - Path reconstruction
KW - Tracking
UR - http://www.scopus.com/inward/record.url?scp=79551625884&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=79551625884&partnerID=8YFLogxK
U2 - 10.1109/GLOCOM.2010.5684306
DO - 10.1109/GLOCOM.2010.5684306
M3 - Conference contribution
AN - SCOPUS:79551625884
SN - 9781424456383
T3 - GLOBECOM - IEEE Global Telecommunications Conference
BT - 2010 IEEE Global Telecommunications Conference, GLOBECOM 2010
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 53rd IEEE Global Communications Conference, GLOBECOM 2010
Y2 - 6 December 2010 through 10 December 2010
ER -