Time Synchronization in Wireless Sensor Networks Using Max and Average Consensus Protocol | Zendy

Zhao Dengchang | Zendy; Zhulin An | Zendy; Yongjun Xu | Zendy

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Time Synchronization in Wireless Sensor Networks Using Max and Average Consensus Protocol

Author(s) -

Zhao Dengchang,

Zhulin An,

Yongjun Xu

Publication year - 2013

Publication title -

international journal of distributed sensor networks

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.324

H-Index - 53

eISSN - 1550-1477

pISSN - 1550-1329

DOI - 10.1155/2013/192128

Subject(s) - computer science , clock synchronization , asynchronous communication , wireless sensor network , clock drift , protocol (science) , network packet , synchronization (alternating current) , distributed computing , computer network , network topology , offset (computer science) , real time computing , channel (broadcasting) , medicine , alternative medicine , pathology , programming language

This paper proposes a novel distributed time synchronization scheme for wireless sensor networks, which uses max consensus to compensate for clock drift and average consensus to compensate for clock offset. The main idea is to achieve a global synchronization just using local information. The proposed protocol has the advantage of being totally distributed, asynchronous, and robust to packet drop and sensor node failure. Finally, the protocol has been implemented in MATLAB. Through several simulations, we can see that this protocol can reduce clock error to ±10 ticks, adapt to dynamic topology, and be suitable to large-scale applications. © 2013 Zhao Dengchang et al.

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