TY - GEN
T1 - A 3D self-positioning method for wireless sensor nodes based on linear FMCW and TFDA
AU - Liu, Lichuan
AU - Manli, E.
AU - Wang, Zhigang
AU - Zhou, Meng Chu
PY - 2009
Y1 - 2009
N2 - In wireless sensor networks (WSN), location information acquisition is critical to guarantee their performance. This paper presents a new positioning method in WSN with high precision at reasonable implementation cost for 3D case. Reference nodes with known locations transmit linear frequency modulation continuous wave (FMCW), while other sensor nodes estimate the range difference to them based on the received signals' frequency difference, called time frequency difference arrival (TFDA). The location information can be obtained by solving a set of hyperbolic equations. Two different positioning methods: Taylor iterative method and Chan's method are inspected and compared in terms of accuracy, constraints and computational complexity. This proposed technique is cost-effective, scalable and easy to implement. The simulation results show that the new method enjoys high precision.
AB - In wireless sensor networks (WSN), location information acquisition is critical to guarantee their performance. This paper presents a new positioning method in WSN with high precision at reasonable implementation cost for 3D case. Reference nodes with known locations transmit linear frequency modulation continuous wave (FMCW), while other sensor nodes estimate the range difference to them based on the received signals' frequency difference, called time frequency difference arrival (TFDA). The location information can be obtained by solving a set of hyperbolic equations. Two different positioning methods: Taylor iterative method and Chan's method are inspected and compared in terms of accuracy, constraints and computational complexity. This proposed technique is cost-effective, scalable and easy to implement. The simulation results show that the new method enjoys high precision.
KW - 3D positioning
KW - Frequency modulation
KW - Location
KW - Wireless sensor networks
UR - http://www.scopus.com/inward/record.url?scp=74949096983&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=74949096983&partnerID=8YFLogxK
U2 - 10.1109/ICSMC.2009.5345923
DO - 10.1109/ICSMC.2009.5345923
M3 - Conference contribution
AN - SCOPUS:74949096983
SN - 9781424427949
T3 - Conference Proceedings - IEEE International Conference on Systems, Man and Cybernetics
SP - 2990
EP - 2995
BT - Proceedings 2009 IEEE International Conference on Systems, Man and Cybernetics, SMC 2009
T2 - 2009 IEEE International Conference on Systems, Man and Cybernetics, SMC 2009
Y2 - 11 October 2009 through 14 October 2009
ER -