Summary
International Symposium on Nonlinear Theory and Its Applications
2015
Session Number:C3L-A
Session:
Number:C3L-A-2
Quartic Double-Well Bistable SR-Based Multilateration Positioning Method Used in WSN
Di He,
pp.887-890
Publication Date:2015/12/1
Online ISSN:2188-5079
Summary:
In this paper, a novel wireless positioning approach combining the traditional multilateration method and the dynamic stochastic resonance (SR) system is proposed, which can be used in the wireless sensor networks (WSN) node positioning. According to the fact that the wireless signal will attenuate through the wireless channel, which will lead to the degradation of received signal-to-noise ratio (SNR), the traditional quartic double-well bistable SR is analyzed. And by choosing the appropriate SR noise and corresponding driving parameters, the SNR gain of the received signal can be obtained, then the positioning accuracy will be enhanced. Computer simulation results show the advantages over the traditional multilateration poisoning method especially under low SNR circumstances.