Advanced self-correcting time synchronization in wireless sensor networks

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...

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Veröffentlicht in:	IEEE communications letters 2010-04, Vol.14 (4), p.309-311
Hauptverfasser:	Liu, Bin, Ren, Fengyuan, Shen, Junyang, Chen, Hongyang
Format:	Artikel
Sprache:	eng
Schlagworte:	Applied sciences Broadcasting Clocks Computer science Detection, estimation, filtering, equalization, prediction Exact sciences and technology Hardware Information, signal and communications theory Kalman filter Kalman filters Networks Performance evaluation Phase locked loops Platforms Protocols Self correction Sensors Services and terminals of telecommunications Signal and communications theory Signal, noise Steady-state Synchronization Systems, networks and services of telecommunications Telecommunications Telecommunications and information theory Telemetry. Remote supervision. Telewarning. Remote control Time synchronization Wireless sensor networks Wires
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Beschreibung
Zusammenfassung:	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.
ISSN:	1089-7798 1558-2558
DOI:	10.1109/LCOMM.2010.04.092364