A new adaptive clock synchronization method based on timestamp and jitter buffer for TDMoIP systems

Abstract

More than two decades, circuit switched systems have been replaced by packet switched systems in telecommunication infrastructure. However, there are considerable amount of circuit switched equipment in telecommunication networks. Therefore, interconnection of existing circuit switched networks with packet switched networks is needed. For this reason, new methods are still being developed to transport circuit switched services over packet switched networks. The aim of this paper is to propose a new method for clock synchronization with fast response, high accuracy and suitable for the implementation on real-time systems. The proposed method is tested on a network with the standard TDM interfaces of 2.048 Mbps, 8.448 Mbps, 34.368 Mbps and the packet interface of 1 Gbps Ethernet. The results show that the proposed method accomplishes high performance.