Proceedings ArticleDOI
Power-Efficient Clock Synchronization using Two-Way Timing Message Exchanges in Wireless Sensor Networks
Kyoung-Lae Noh,Qasim M. Chaudhari,Erchin Serpedin,Bruce W. Suter +3 more
- pp 1143-1149
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TLDR
Novel clock skew estimators for the protocols based on two-way timing message exchanges to achieve long term reliability of synchronization by significantly increasing the re-synchronization period are proposed.Abstract:
A number of time synchronization protocols for wireless sensor networks (WSNs) have been recently proposed aiming at maximizing the accuracy and minimizing the power efficiency. This paper proposes novel clock skew estimators for the protocols based on two-way timing message exchanges to achieve long term reliability of synchronization. The proposed clock synchronization mechanism is far more power efficient than the conventional ones by significantly increasing the re-synchronization period. Moreover, it can be applied to the conventional protocols without any additional overhead. In fact, the proposed estimators assume simple steps and low complexity, a feature which is strongly demanding for WSNs consisting of cheap and small nodesread more
Citations
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Journal ArticleDOI
A combined hardware-software approach for acoustic sensor network synchronization
TL;DR: An approach for synchronizing a wireless acoustic sensor network using a two-stage procedure employing a Kalman filter with a dedicated observation error model and a gossiping algorithm which estimates the average clock frequency and phase of the sensor nodes.
Proceedings ArticleDOI
An energy-efficient clock synchronization protocol for Wireless Sensor Networks
TL;DR: In this article, a combined synchronization protocol based on the IEEE 1588 standard for wired networks and the PBS (Pairwise Broadcast Synchronization) protocol for sensor networks is proposed.
Dissertation
Étude et développement d'une plateforme de communication pour les réseaux de capteurs acoustiques sans fil : application au contrôle-santé des rails par corrélation du bruit ambiant
TL;DR: In this paper, a prototype-plateforme de communication without fil base on ZigBee/IEEE 802.15.4 is presented, and a solution for synchronisation des capteurs lors du prelevement du signal basee sur la norme IEEE 802.14.4 a ete proposee and validee par une campagne de mesures.
Proceedings ArticleDOI
Multi-hop time synchronization for Underwater Acoustic Networks
TL;DR: This paper proposes a multi-hop time synchronization scheme for Underwater Acoustic Networks (MSUAN), and uses OPNET to simulate MSUAN, and the simulation result under pyramid topology shows that even the hop accumulates to 8, for MS UAN, the average offset error is maintained at about 58us and the average skew error is below 2ppm.
Journal ArticleDOI
Least Squares-Based Estimation of Relative Clock Offset and Frequency in Sensor Networks with High Latency
TL;DR: This work proposes, study, and demonstrates the effectiveness of several alternative least squares-based estimators for Time Synchronization for High Latency (TSHL), and seeks to improve the accuracy of TSHL.
References
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Proceedings ArticleDOI
The flooding time synchronization protocol
TL;DR: The FTSP achieves its robustness by utilizing periodic flooding of synchronization messages, and implicit dynamic topology update and comprehensive error compensation including clock skew estimation, which is markedly better than that of the existing RBS and TPSN algorithms.
Proceedings ArticleDOI
Timing-sync protocol for sensor networks
TL;DR: It is argued that TPSN roughly gives a 2x better performance as compared to Reference Broadcast Synchronization (RBS) and verify this by implementing RBS on motes and use simulations to verify its accuracy over large-scale networks.
Book
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TL;DR: In this article, the authors present an axiomatic approach to a theory of probability, based on the axiomatization of probability models, for the analysis and design of wireless networks.