Authors: Hong-Bin Wang; Li-Ping Feng; Jian-Fang Cao; Chan Liu
Addresses: Department of Computer Science, Xinzhou Teachers University, Xinzhou, China ' Department of Computer Science, Xinzhou Teachers University, Xinzhou, China ' Department of Computer Science, Xinzhou Teachers University, Xinzhou, China ' School of Computer Science and Control Engineering, North University of China, Taiyuan, China
Abstract: To further improve the localisation accuracy based on the energy detection, this paper combined the TMMR-TC algorithm with the MUSIC algorithm, and proposed a two-step TOA estimation algorithm. The peak search of the MUSIC algorithm was done in the search range provided by TMMR-TC algorithm. Through the comparison between the two-step algorithm and several other algorithms, it is found that the two-step method accuracy has been significantly improved, and it has achieved great positioning performance in the whole SNR range.
Keywords: wireless sensor networks; WSNs; energy detection; TOA estimation; time of arrival; location algorithms; localisation accuracy; positioning estimation.
International Journal of Wireless and Mobile Computing, 2016 Vol.10 No.2, pp.159 - 165
Received: 04 Aug 2015
Accepted: 26 Nov 2015
Published online: 27 Apr 2016 *