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http://dx.doi.org/10.3745/KIPSTC.2003.10C.6.711

An Internet Time Synchronization Model using Dynamic Linear Model  

Yu, Dong-Hui (부산가톨릭대학교 컴퓨터정보공학부)
Hwang, So-Young (부산대학교 대학원 전자계산학과)
Kim, Yong-Ho (한국기계연구원)
Publication Information
The KIPS Transactions:PartC / v.10C, no.6, 2003 , pp. 711-716 More about this Journal
Abstract
We propose a new Interet time synchronization model using danamic linear model and introduce the characteristics of internet transmission delays. SNTP(Simple Network Time Protocol) has been widely used as a time synchronization method on the Internet. While SNTP provides a very simple usage, SNTP may not provide the stable services, since SNTP does not consider the several essential error factors. In order to overcome the instabitily of SNTP, we analyze the process of time estimation of SNTP and find the difference between forward transmission delay and backward transmission delay operates the main error on the estimation of an time offset.
Keywords
SNTP; NTP; Internet Time Synchronization; Internet Security; Time Offset; Estimation; Dynamic Linear Model; Kalman Filter; Transmission Delay;
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