Title :
An innovative positioning method based on linear frequency modulation for wireless sensor networks
Author :
Liu, Lichuan ; Kuo, Sen M. ; Wang, Zhigang
Author_Institution :
Dept. of Electr. Eng., Northern Illinois Univ., DeKalb, IL, USA
Abstract :
In wireless sensor networks (WSN), location information is one of the critical issues for both performance and efficiency. This paper presents a new positioning method in WSN with reasonable implementation cost and excellent performance. Given a few reference nodes with known locations and node range estimates based on linear frequency modulation continuous wave (FMCW) technique, all nodes´ location information can be derived by solving a set of circle equations. This technique is cost efficient, scalable and easy to be implemented. The simulation results show that the new method is fast convergent and precise.
Keywords :
frequency modulation; radio direction-finding; wireless sensor networks; linear frequency modulation continuous wave technique; location information; positioning method; wireless sensor networks; Chirp modulation; Continuous time systems; Convergence; Distributed computing; Educational institutions; Multiagent systems; Network topology; Protocols; Sufficient conditions; Wireless sensor networks; Location; hit frequency; linear frequency modulation continuous wave; positioning; wireless sensor networks;
Conference_Titel :
Service Operations, Logistics and Informatics, 2009. SOLI '09. IEEE/INFORMS International Conference on
Conference_Location :
Chicago, IL
Print_ISBN :
978-1-4244-3540-1
Electronic_ISBN :
978-1-4244-3541-8
DOI :
10.1109/SOLI.2009.5203927
