- Title
- A proportional integral estimator-based clock synchronization protocol for wireless sensor networks
- Creator
- Yang, Wenlun; Fu, Minyue
- Relation
- ISA Transactions Vol. 71, Issue 1, p. 148-160
- Publisher Link
- http://dx.doi.org/10.1016/j.isatra.2017.03.025
- Publisher
- Elsevier
- Resource Type
- journal article
- Date
- 2017
- Description
- Clock synchronization is an issue of vital importance in applications of WSNs. This paper proposes a proportional integral estimator-based protocol (EBP) to achieve clock synchronization for wireless sensor networks. As each local clock skew gradually drifts, synchronization accuracy will decline over time. Compared with existing consensus-based approaches, the proposed synchronization protocol improves synchronization accuracy under time-varying clock skews. Moreover, by restricting synchronization error of clock skew into a relative small quantity, it could reduce periodic re-synchronization frequencies. At last, a pseudo-synchronous implementation for skew compensation is introduced as synchronous protocol is unrealistic in practice. Numerical simulations are shown to illustrate the performance of the proposed protocol.
- Subject
- wireless sensornetworks; clock synchronization; proportional–integralestimator
- Identifier
- http://hdl.handle.net/1959.13/1352433
- Identifier
- uon:30885
- Identifier
- ISSN:0019-0578
- Language
- eng
- Reviewed
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