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SAEP: Secure and Accurate and Energy-efficient Time Synchronization in Wireless Sensor Networks
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- Authors
- Kyeong Tae Kim, Myung Hee Son
- Issue Date
- 2009-06
- Citation
- International Symposium on Parallel and Distributed Computing (ISPDC) 2009, pp.117-120
- Language
- English
- Type
- Conference Paper
- Project Code
- 09MC2100, Development of Situation Awareness Technology based on Virtual Sensor for Proactive Idling Stop, Myunghee Son
- Abstract
- We have developed a secure, accurate and energy-efficient time synchronization protocol (SAEP). First, SAEP achieves accurate time synchronization service with significantly reducing the number of message exchanges. Second, SAEP safeguards Byzantine failure, in which nodes drop, modify, or delay time information in an attempt to disrupt the time synchronization service in multi-hop networks. SAEP takes a distributed approach where each sensor independently makes decisions based only on the information collected from multiple adjacent nodes, thus achieving a high level of resistance to various attacks at a minimizing energy cost. In our experiment SAEP outperforms the existing time synchronization protocol in accuracy, energy consumption, and it is even resilient to multiple capture attacks. © 2009 IEEE.
- KSP Keywords
- Capture attacks, Delay Time, Distributed approach, Energy-efficient time synchronization, Static wireless sensor networks(WSNs), Synchronization Protocol, Time information, byzantine failure, energy consumption, energy cost, multi-hop network