Advanced self-correcting time synchronization in wireless sensor networks

Authors:
Bin Liu;Fengyuan Ren;Junyang Shen;Hongyang Chen
Affiliations:
Computer Science Department, University of Southern, California;Department of Computer Science and Technology, Tsinghua University, Beijing;Electrical Engineering Department, University of Southern California;Institute of Industrial Science, University of Tokyo
Venue:
IEEE Communications Letters
Year:
2010

Citing 3
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Abstract

To improve the two deficiencies of the Self-Correcting Time Synchronization (SCTS) mechanism, we propose a Kalman filter based Advanced SCTS (ASCTS) mechanism in this letter. We prove and explain the close relationship between the basic phase locked loop (PLL) employed by SCTS and the Kalman filter employed by ASCTS. An experimental platform with eight GAINS-3 nodes is used to evaluate the performance.