Title :
Advanced self-correcting time synchronization in wireless sensor networks
Author :
Liu, Bin ; Ren, Fengyuan ; Shen, Junyang ; Chen, Hongyang
Author_Institution :
Comput. Sci. Dept., Univ. of Southern California, Los Angeles, CA, USA
fDate :
4/1/2010 12:00:00 AM
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.
Keywords :
Kalman filters; phase locked loops; synchronisation; wireless sensor networks; Kalman filter; phase locked loop; self-correcting time synchronization; wireless sensor networks; Broadcasting; Clocks; Computer science; Hardware; Phase locked loops; Protocols; Steady-state; Synchronization; Wireless sensor networks; Wires; Self correction, time synchronization, Kalman filter;
Journal_Title :
Communications Letters, IEEE
DOI :
10.1109/LCOMM.2010.04.092364
