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DiStiNCT: Synchronizing nodes with imprecise timers in distributed wireless sensor networks

Boyle, James, Reeve, Jeffrey and Weddell, Alexander (2017) DiStiNCT: Synchronizing nodes with imprecise timers in distributed wireless sensor networks IEEE Transaction on Industrial Informatics (doi:10.1109/TII.2017.2689330).

Record type: Article


An effective and robust time synchronization scheme is essential for many wireless sensor network (WSN) applications. Conventional synchronization methods assume the use of highly accurate crystal oscillators (10--100 ppm) for synchronization, only correcting for small errors. This paper suggests a novel method for time synchronization in a multi-hop, fully-distributed WSN using imprecise CMOS oscillators (up to 15,000 ppm). The DiStiNCT technique is power-efficient, computationally simple, and robust to packet loss and complex topologies. Effectiveness has been demonstrated in simulations of fully connected, grid and uni-directional ring topologies. The method has been validated in hardware on a grid of nine sensor nodes, synchronizing to within a mean error of 6.6 ms after 40 iterations.

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Accepted/In Press date: 8 February 2017
e-pub ahead of print date: 29 March 2017
Keywords: wireless sensor networks, distributed algorithms, synchronization
Organisations: EEE


Local EPrints ID: 407610
ISSN: 1551-3203
PURE UUID: 3c8e2202-bfc9-45e6-8981-74ee0f4d1b7b
ORCID for Alexander Weddell: ORCID iD

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Date deposited: 16 Apr 2017 17:00
Last modified: 17 Jul 2017 13:53

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Author: James Boyle
Author: Jeffrey Reeve
Author: Alexander Weddell ORCID iD

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