一种新的ATM网业务模型

A Novel Traffic Source Model io ATM Networks

提出一种新的ＡＴＭ网业务模型，它去除了ＭＭＰＰ等信源业务模型中的泊松到达假设，更符合ＡＴＭ中业务的性质。它可以用于描述数据、语音、视频，甚至它们的复合业务流。给出了对这种模型进行排队分析的流体流分析法。最后以视频与话音业务的复合为例给出分析结果，并与仿真实验进行了对比，结果是令人满意的。

A novel traffic source model , the Markov modulated deterministic process (hfMDP ) mod- el, is proposed. The Poisson arrival assumption made in the MMDP model can be deleted so the new model will better conform to the reality of traffic in ATM networks. lt can be used to simulate data , voice and video as well as their composition. A fluid-flow analysis method is given to study the quene- ing analysis for such a kind of traffice sources. Some analysis results of a composition of traffic voice and video are given and the results are satisfactory . when compared with those by simulation experi- ments.