A new self-localization method for wireless sensor networks
- Author:
Yong HUANG
;
Fulong ZHANG
;
Yun Lü
;
Yifan XIE
- Publication Type:Journal Article
- Keywords:
wireless sensor network;
node localization;
time-difference of arrival
- From:
Journal of Pharmaceutical Analysis
2008;20(3):172-177
- CountryChina
- Language:Chinese
-
Abstract:
Many applications of wireless sensor networks can benefit from fine-grained localization. In this paper, we proposed an accurate, distributed localization method based on the time difference between radio signal and sound wave. In a trilateration, each node adaptively chooses a neighborhood of sensors and updates its position estimate with trilateration, and then passes this update to neighboring sensors. Application examples demonstrate that the proposed method is more robust and accurate in localizing node than the previous proposals and it can achieve comparable results using much fewer anchor nodes than the previous methods.
