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Telecommunication Systems

, Volume 11, Issue 1–2, pp 3–16 | Cite as

Clock synchronization of MPEG-2 services over packet networks

  • Raffaele Noro
  • Jean-Pierre Hubaux
Article

Abstract

We address the problem of time-base synchronization for MPEG services in the presence of network jitter. The conventional methods to obtain a stable clock indication are based on Phase Locked Loops (PLLs). They have the disadvantage of a long startup phase and thus are unsuitable for services that require simultaneous accuracy and rapidity. We develop a new time-base synchronization technique based on a Least-square Linear Regression algorithm (LLR). We show that LLR is able to perform time-base synchronization with the same accuracy as of a PLL and with a substantial gain of rapidity. Finally, we discuss the implementation of the LLR technique as an intermediate time-base synchronization level between the network and a generic multimedia application.

Keywords

Artificial Intelligence Stochastic Process Conventional Method Probability Theory Multimedia Application 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • Raffaele Noro
    • 1
  • Jean-Pierre Hubaux
    • 1
  1. 1.Institute for computer Communications and ApplicationsSwiss Federal Institute of TechnologyLausanneSwitzerland

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