A Byzantine Fault-tolerant Clock Synchronization Scheme in Wireless Sensor Networks
Hyung-Geun Lim, Young-Jin Nam, Jang-Woon Baek, Seok‐Young Ko, Dae-Wha Seo · 2008
This paper proposes the Byzantine fault tolerant clock synchronization scheme for wireless sensor networks to cope with the clock synchronization disturbance attack of malicious nodes. In the proposed scheme, a node which is requiring clock synchronization receives 3m+1 clock synchronization messages not only from its parent nodes but also from its sibling nodes in order to tolerate malicious attacks even if up to m malicious nodes exist among them. The results show that the proposed scheme is 7 times more resilient to the clock synchronization disturbance attack of malicious nodes than existing schemes in terms of synchronization accuracy.