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Title: A Group Neighborhood Average Clock Synchronization Protocol for Wireless Sensor Networks
Authors: Lin, Lin
Ma, Shiwei
Ma, Maode
Keywords: Wireless sensor networks
Clock synchronization
Consensus clock
Issue Date: 2014
Source: Lin, L., Ma, S., & Ma, M. (2014). A Group Neighborhood Average Clock Synchronization Protocol for Wireless Sensor Networks. Sensors, 14(8), 14744-14764.
Series/Report no.: Sensors
Abstract: Clock synchronization is a very important issue for the applications of wireless sensor networks. The sensors need to keep a strict clock so that users can know exactly what happens in the monitoring area at the same time. This paper proposes a novel internal distributed clock synchronization solution using group neighborhood average. Each sensor node collects the offset and skew rate of the neighbors. Group averaging of offset and skew rate value are calculated instead of conventional point-to-point averaging method. The sensor node then returns compensated value back to the neighbors. The propagation delay is considered and compensated. The analytical analysis of offset and skew compensation is presented. Simulation results validate the effectiveness of the protocol and reveal that the protocol allows sensor networks to quickly establish a consensus clock and maintain a small deviation from the consensus clock.
ISSN: 1424-8220
DOI: 10.3390/s140814744
Rights: © 2014 by the authors; licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution license (
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:EEE Journal Articles

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