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Conference Paper
Global Time Service in Wireless Sensor Networks
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- Authors
- So Young Hwang, Seong Soon Joo
- Issue Date
- 2009-09
- Citation
- International Symposium on Communications and Information Technology (ISCIT) 2009, pp.382-383
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- Time information and time synchronization are fundamental building blocks in wireless sensor networks since many sensor network applications need time information for object tracking, consistent state updates, duplicate detection and temporal order delivery. Various time synchronization protocols have been proposed for sensor networks because of the characteristics of sensor networks which have limited computing power and resources. However, none of these protocols have been designed with time representation scheme in mind. Global time format such as UTC TOD (Universal Time Coordinated, Time Of Day) is very useful in sensor network applications. In this paper we propose time keeping and synchronization method for global time service in wireless sensor networks. We implemented and evaluated the proposed scheme in real test platform of MicaZ and TinyOS-2.0. ©2009 IEEE.
- KSP Keywords
- Building block, Computing power, Consistent state, Network applications, Test platform, Time information, Time keeping, Time of day, Time representation, Wireless sensor networks(WSNs), duplicate detection