Improving Location Identification in Wireless Ad Hoc/Sensor Networks Using GDOP Theory

Author

Zhao, Yifan ; Lung, Chung-Horng ; Lambadaris, Ioannis ; Goel, Nishith

Author_Institution

Dept. of Syst. & Comput. Eng., Carleton Univ., Ottawa, ON, Canada

fYear

2009

fDate

18-23 June 2009

Firstpage

223

Lastpage

228

Abstract

This paper presents a practical approach to location identification for ad hoc/sensor networks. The approach adopts the cell-based location identification concept and basic realistic assumptions to most types of ad hoc/sensor networks. Some drawbacks of the TDOA system are resolved. Further, the location estimation accuracy of the proposed system, hybrid TDOA, is improved in different environments compared with the TDOA method based on simulations. The proposed method also performs well in both non-noisy and noisy environments.

Keywords

ad hoc networks; time-of-arrival estimation; wireless sensor networks; GDOP theory; TDOA system; cell based location identification; geometric dilution of precision; location estimation accuracy; time difference of arrival; wireless ad hoc/sensor networks; Application software; Costs; FCC; Global Positioning System; Lungs; Sensor systems and applications; Signal processing; Space technology; Time difference of arrival; Wireless sensor networks; GDOP; Location identification; TDOA;

fLanguage

English

Publisher

ieee

Conference_Titel

Sensor Technologies and Applications, 2009. SENSORCOMM '09. Third International Conference on

Conference_Location

Athens, Glyfada

Print_ISBN

978-0-7695-3669-9

Type

conf

DOI

10.1109/SENSORCOMM.2009.44

Filename

5210933