Playback Control and its Performance Analysis of Voice Traffic over Packet-Switch Network
分组交换网络语音回放控制及性能分析

Playback control is the key guarantee scheme of voice srnoothing. In this paper, the problems of voice playback control and its performance analysis are studied. Based on the summary of the cbaracteristic of voice communication and its end-toend components, a simple and effective voice playback control model is proposed, which exploiting double token buckets as voice traffic shaper. Based on the novel network calculus theory, the formulations of playback delay, desired rate and buffer size are derived, given the end-to-end delay, the voice arrival curve and the network service curve Finally, the validity and effectiveness of the analytic results of the paper is verified with an application example.