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Precision Time Synchronization using IEEE 1588 for Wireless Sensor Networks
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- Authors
- Hyun Tae Cho, Jeon Su Jung, Bong Rae Cho, Young Woo Jin, Seung Woo Lee, Yun Ju Baek
- Issue Date
- 2009-08
- Citation
- International Conference on Computational Science and Engineering (CSE) 2009, pp.579-586
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Project Code
- 09MR8400, Development of Scalable Micro Flow Processing Technology, Lee Bhum Cheol
- Abstract
- Wireless sensor networks are evolving from relatively undemanding applications to applications which have stronger requirements. The coordination of distributed entities and events requires time synchronization. Although a number of methods have been studied for WSNs, some applications require high precision time synchronization. Precision time synchronization enables a variety of extensions of applications. The IEEE 1588 precision time protocol (PTP) provides a standard method to synchronize devices in a network with sub-microsecond precision. This paper deals with precision time synchronization using IEEE 1588 over wireless sensor networks. Precision time synchronization using IEEE 1588 provides compatibility between heterogeneous systems in WSNs. This paper also presents experiments and performance evaluation of precision time synchronization in WSNs. Our result established a method for nodes in a network to maintain their clocks to within a 200 nanosecond offset from the reference clock of a master node. © 2009 IEEE.
- KSP Keywords
- IEEE 1588 Precision Time Protocol, Master Node, Performance evaluation, Precision time synchronization, Reference clock, Static wireless sensor networks(WSNs), heterogeneous systems, high-precision