Designing of Method for Improving Synchronization Accuracy in Packet Networks

Abstract: This article deals with the possibilities of improving the synchronization accuracy over packet networks. The first part is focused on the analysis and measurements of synchronization accuracy in the real packet network. Measurements were performed using the precision time protocol. The transmission parameters of a network were changed using a network emulator and the resulting accuracy was measured again. The second part deals with methods for improving the accuracy of synchronization. Additional source of a local clock is used at the client’s side to improve the synchronization accuracy. Proposed methods were simulated under the same conditions as the previous measurements. The resulting synchronization accuracy was better during the simulation than during the real measurements of a network.