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Abstract The Precise Time Protocol defined in the I The Precise Time Protocol defined in the IEEE 1588 standard is widely used to synchronize clocks, with a high degree of precision. The current needs of time synchronization in Smart Grids are satisfied with multiple GPS based clocks located around the network. This solution, however, is not cost efficient and if any of these GPS clocks is successfully attacked, a part of the network can be rendered unusable. This paper investigates a way of adding fault tolerance capabilities to the PTP protocol to address attacks aiming to interfere with the GPS based clock service. It is shown that the solution manages to detect anomalous clock behaviors and recover from them. Furthermore, the solution is able to deal with multiple GPS clock failures, as long as some correct time source is still available. me correct time source is still available.
Address Covilhã, Portugal  +
Author Radu Onica + , Nuno Ferreira Neves + , António Casimiro +
Booktitle Proceedings of the 7th Simpósio de Informática (INFORUM)  +
Document Document for Publication-Onica15PTP.pdf +
Key Onica15PTP  +
Month sep  +
NumPubDate 2,015.09  +
Project Project:SEGRID +
ResearchLine Fault and Intrusion Tolerance in Open Distributed Systems (FIT) +
Title Fault-Tolerant Precision Time Protocol for Smart Grids  +
Type inproceedings  +
Year 2015  +
Has improper value forThis property is a special property in this wiki. Url  +
Categories Publication  +
Modification dateThis property is a special property in this wiki. 9 August 2015 08:09:09  +
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