Self-adaptive clock synchronisation based on clock precision difference
Zhao, Ying, Zhou, Wanlei, Lanham, Elicia, Yu, Shui and Lan, Mingjun 2003, Self-adaptive clock synchronisation based on clock precision difference, in Computer science 2003 : proceedings of the twenty-sixth Australasian Computer Science Conference, Australian Computer Society, Sydney, N.S.W., pp. 181-187.
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This paper presents an innovative strategy to synchronize all virtual clocks in asynchronous Internet environments. Our model is based on the architecture of one reference clock and many slave clocks communicating with each other over the Internet. The paper makes three major contributions to this research area. Firstly, one-way information transmission is applied to reduce traffic overhead on the Internet for the purpose of clock synchronization. Secondly, the slave nodes use local virtual time and the arrival timestamp, from the reference node, to create linear mathematical trend models and to retrieve the clock precision differences between reference clock and slave clocks. Finally, a fault-tolerant and self-adaptive model executed by each slave node based on the above linear trend model is created in order to ensure that the virtual clock is running normally, even when the link between the reference node and this slave node has crashed. We also present detailed simulations of this strategy and mathematical analysis on real Internet environments.
Field of Research
080699 Information Systems not elsewhere classified
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