Title
Event-based Diffusion Kalman Filter Strategy for Clock Synchronization in WSNs
Abstract
As a distributed system, most applications in wireless sensor networks (WSNs) require clock synchronization as support. However, clock crystal oscillators in WSNs are highly susceptible to the environment. The problem of clock synchronization among sensors in WSNs is urgently to be solved. Therefore, in this paper, a state-space model considering the distributed characteristics of WSNs is set up to solve clock synchronization problems. Based on this model, a diffusion Kalman filter is put forward to implement compensation of clock offset and clock skew. Furthermore, an event-based diffusion Kalman filter algorithm is proposed, in which, the eb-DKF will be executed only when some event happens. Through this proposed solution, it can achieve close performances with DKF implement but reduce computational cost significantly, which is particularly adaptive to the low power and low cost properties of WSNs. At last, experiments is shown to support these theoretical algorithm well.
Year
DOI
Venue
2018
10.1109/NANA.2018.8648770
2018 International Conference on Networking and Network Applications (NaNA)
Keywords
Field
DocType
Clocks,Sensors,Synchronization,Wireless sensor networks,Kalman filters,Mathematical model,Protocols
Synchronization,Clock offset,Crystal oscillator,Computer science,Kalman filter,Real-time computing,Clock skew,Clock synchronization,Wireless sensor network,Kalman filter algorithm,Distributed computing
Conference
ISBN
Citations 
PageRank 
978-1-5386-8303-3
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Shujie Yang133.40
Changqiao Xu273071.39
Jianfeng Guan336539.36
Tao Zhang422069.03