Self-adaptive clock recovery methods for time periodic traffic across packet switched networks

Abstract

Real-time periodic transmission across packet switched networks that experience stochastic-delays requires clock recovery at the destination. In this paper, improved self-adaptive clock recovery methods are proposed. Since these methods fully consider network characteristic's influence to clock recovery, they have the ability to filter out buffer level fluctuation efficiently and remove the negative contribution of delay jitter in clock recovery. As compared to the existing ones, new methods enable the destination clock to be synchronized with the source faster and with more accuracy.