通信网拥塞的计算机仿真研究

本文建立了一个程控电活交换网的计算机仿真模型,它采用了分级仿真技术,以减少运算时间和计算机内存,使这一大型的仿真成为可行.此外,还引入了反馈功能、模块化结构等,并应用事件驱动的真实过程仿真.最后,用该模型对各种典型的拥塞现象进行了仿真分析,试图揭示拥塞的内部机理.

Simulation Approaches to Congestion in Teletraffic Networks

In this paper a simulation model for teletraffic network with SPC exchanges is developed.Hierarchical principle is used to reduce computer run time and storage. In order to have flexibility and adaptabilily,highly modular construction is adopted here.Some feedback processes are embeded into the model to simulate the conges- tion characteristics of the network.A fully real process event-driven simulation confirms the fidelity of the model.Finally,several overload situations are simulated using this model to show the inner behaviour of congestion.