Joint Asynchronous Time and Localization of an Unknown Node in Wireless Sensor Networks

Zhao, Junhui1,2; Li, Lei2; Gong, Yi3

10.1007/978-3-319-72998-5_1

2018

1867-8211

WIRELESS INTERNET (WICON 2016)

214

3-9

Haikou, China

233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES

SPRINGER

This paper considers the location of an unknown source node with asynchronous anchor nodes in Wireless Sensor Networks (WSN). In this paper, a joint synchronization and localization framework is considered and examined. Firstly, the proposed algorithm obtains algebraic solutions of the source location and the clock skew by improved Taylor series based on regularization theory. Then the clock offset is estimated. The Cramer-Rao lower bound is derived for the considered problem. Simulations show that the proposed algorithm is robust to the inaccurate initial value and better accuracy than the closed-form methods. This proposed algorithm can be widely applied in practice.

Localization Clock offset Clock skew WSN

其他

英语

CPCI-S ; EI

Guangdong Science and Technology Program[2016A010101003]

Computer Science ; Telecommunications

Computer Science, Information Systems ; Telecommunications

WOS:000452832900001

20175304595742

Cramer-Rao bounds ; Electric clocks

Electric Equipment:704.2 ; Computer Systems and Equipment:722 ; Mathematical Statistics:922.2

Web of Science

1.East China Jiaotong Univ, Nanchang 330013, Jiangxi, Peoples R China
2.Beijing Jiaotong Univ, Beijing 100044, Peoples R China
3.South Univ Sci & Technol China, Shenzhen 518055, Peoples R China

Zhao, Junhui,Li, Lei,Gong, Yi. Joint Asynchronous Time and Localization of an Unknown Node in Wireless Sensor Networks[C]. 233 SPRING STREET, NEW YORK, NY 10013, UNITED STATES:SPRINGER,2018:3-9.