A 3D self-positioning method for wireless sensor nodes based on linear FMCW and TFDA

Document Type

Conference Proceeding

Publication Date

12-1-2009

Abstract

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. ©2009 IEEE.

Identifier

74949096983 (Scopus)

ISBN

[9781424427949]

Publication Title

Conference Proceedings IEEE International Conference on Systems Man and Cybernetics

External Full Text Location

https://doi.org/10.1109/ICSMC.2009.5345923

ISSN

1062922X

First Page

2990

Last Page

2995

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