This Article 
   
 Share 
   
 Bibliographic References 
   
 Add to: 
 
Digg
Furl
Spurl
Blink
Simpy
Google
Del.icio.us
Y!MyWeb
 
 Search 
   
2002 Symposium on Applications and the Internet Workshops (SAINT 2002 Workshops)
Estimation of Clock offset from one-way delay measurement on asymmetric paths
Narar City, Nara, Japan
January 28-February 01
ISBN: 0-7695-1450-2
Masato Tsuru, Kitakyushu Research Center of TAO and GENESIS Project, Telecommunications Advancement Organization of Japan
Tetsuya Takine, Kyoto University, Japan
Yuji Oie, Kyushu Institute of Technology, Japan
As the Internet is shifting towards a reliable QoS-aware network, accurately synchronized clocks distributed in the Internet become more significant. Network Time Protocol (NTP) is broadly deployed in the Internet for clock synchronization among distributed hosts, but it is weak in asymmetric paths, i.e., it cannot accurately estimate the clock offset between two hosts when the forward and backward paths between them have different one-way delays.In this paper, we focus on estimating the offset and the skew of a clock from one-way delay measurement between two hosts, and propose an idea for improvement of such estimations, which reduces estimation errors in case that the forward and backward paths have different bandwidths that is one of main factors of the asymmetric delays.
Index Terms:
Measurement and Monitoring, Distributed clock synchronization, One-way delay
Citation:
Masato Tsuru, Tetsuya Takine, Yuji Oie, "Estimation of Clock offset from one-way delay measurement on asymmetric paths," saint-w, pp.126, 2002 Symposium on Applications and the Internet Workshops (SAINT 2002 Workshops), 2002
Usage of this product signifies your acceptance of the Terms of Use.