TSMU: A Time Synchronization Scheme for Mobile Underwater Sensor Networks

Author

Liu, Jun ; Wang, Zhaohui ; Peng, Zheng ; Zuba, Michael ; Cui, Jun-Hong ; Zhou, Shengli

Author_Institution

Underwater Sensor Network Lab., Univ. of Connecticut, Storrs, CT, USA

fYear

2011

fDate

5-9 Dec. 2011

Firstpage

1

Lastpage

6

Abstract

Time synchronization plays a critical role in distributed network systems. In this paper, we investigate the time synchronization problem in the context of underwater sensor networks (UWSNs). We propose a pairwise, cross-layer, time synchronization scheme for mobile underwater sensor networks, called TSMU. Facilitated by the Kalman Filter, the proposed method greatly improves the dynamic propagation delay estimation by exploring the Doppler effect. Simulation results show that TSMU outperforms existing synchronization schemes in both accuracy and energy efficiency.

Keywords

Doppler effect; Kalman filters; energy conservation; marine communication; mobile radio; synchronisation; wireless sensor networks; Doppler effect; Kalman filter; cross-layer synchronization scheme; distributed network system; dynamic propagation delay estimation; energy efficiency; mobile underwater sensor network; pairwise synchronization scheme; time synchronization scheme; Accuracy; Calibration; Doppler effect; Estimation; Peer to peer computing; Propagation delay; Synchronization;

fLanguage

English

Publisher

ieee

Conference_Titel

Global Telecommunications Conference (GLOBECOM 2011), 2011 IEEE

Conference_Location

Houston, TX, USA

ISSN

1930-529X

Print_ISBN

978-1-4244-9266-4

Electronic_ISBN

1930-529X

Type

conf

DOI

10.1109/GLOCOM.2011.6134447

Filename

6134447