A hybrid localization method in wireless sensor networks

Author

Liu, Lichuan ; Jiang, Zaihan

Author_Institution

Dept. of Electr. Eng., Northern Illinois Univ., DeKalb, IL, USA

fYear

2011

Firstpage

1

Lastpage

5

Abstract

In wireless sensor networks (WSN), location information acquisition is critical to guarantee their performance. This paper presents a hybrid positioning method in WSN with high precision. Reference nodes transmit linear frequency modulation continuous wave (FMCW), general nodes estimate the range difference to reference nodes based on the received signals´ frequency difference. The location information can be obtained by combining the Fang´s analytical algorithm and Taylor iteration method. The simulation results prove that the new method enjoys high precision and moderate computational complexity.

Keywords

computational complexity; frequency modulation; iterative methods; sensor placement; time-of-arrival estimation; wireless sensor networks; FMCW technique; Fang analytical algorithm; TFDA positioning method; Taylor iteration method; WSN; computational complexity; frequency modulation continuous wave technique; hybrid localization method; location information acquisition; time frequency difference of arrival positioning method; wireless sensor networks; Computational complexity; Equations; Global Positioning System; Iterative methods; Mathematical model; Wireless sensor networks; Wireless sensor networks; hybrid method; location; time frequency difference arrival;

fLanguage

English

Publisher

ieee

Conference_Titel

Networking, Sensing and Control (ICNSC), 2011 IEEE International Conference on

Conference_Location

Delft

Print_ISBN

978-1-4244-9570-2

Type

conf

DOI

10.1109/ICNSC.2011.5874956

Filename

5874956