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학술대회 Precision Time Synchronization using IEEE 1588 for Wireless Sensor Networks
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저자
조현태, 정연수, 조봉래, 진영우, 이승우, 백윤주
발행일
200908
출처
International Conference on Computational Science and Engineering (CSE) 2009, pp.579-586
출판사
IEEE
DOI
https://dx.doi.org/10.1109/CSE.2009.264
협약과제
09MR8400, Scalable 마이크로 플로우 처리기술개발, 이범철
초록
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.
키워드
IEEE 1588, Precision time protocol, Time synchronization, Wireless sensor networks
KSP 제안 키워드
IEEE 1588 Precision Time Protocol, Master Node, Performance evaluation, Precision time synchronization, Reference clock, Wireless sensor networks(WSNs), heterogeneous systems, high-precision