PTN时分复用业务的时延抖动分析模型

doi:10.3969/j.issn.1001-2400.2017.06.016

摘要/Abstract

摘要：

针对分组传送网承载电力通信时分复用业务存在时延抖动问题，提出了随机封装和固定封装两种分组封装模式，建立了两种模式的单节点和串联路径端到端时延抖动数学模型．根据创建的两种模型，仿真研究了背景流量、网络节点数量、节点吞吐量和封装模式等参数对时延抖动的影响．结果表明，合理配置这几个参数可以优化网络性能，为去抖动缓存的设置提供依据；而且固定封装模式具有较强的抗抖动能力．

关键词: 分组传送网, 时分复用, 时延抖动, 封装

Abstract:

According to the jitter of the time division multiplexing services of the packet transport network, a random packaging mode and a fixed packaging mode are presented. Two math models for single node and the end-to-end serial path are established. The influence of network parameters, such as background traffic, path node number, node throughput and packaging model is studied. Present results indicates that the delay jitter could be reduced by optimizing these parameters which could provide the basis for configuration of the jitter buffer. The model of fixed packaging has a stronger ability to resist jitter than the model of random packaging.

Key words: packet transport network, time division multiplexing, jitter, packaging

高会生;方子希. PTN时分复用业务的时延抖动分析模型[J]. 西安电子科技大学学报, 2017, 44(6): 85-91+143.

GAO Huisheng;FANG Zixi. Analysis model of jitter over PTN with time division multiplexing services[J]. Journal of Xidian University, 2017, 44(6): 85-91+143.

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