基于Simulink的TCP/PI模型仿真研究  

Study on Simulation of TCP/PI Model Based on Simulink

作　　者：张天魁[1] 郭彩丽[1] 曾志民[1] 冯春燕[1] 

机构地区：[1]北京邮电大学通信网络综合技术研究所,北京100876

出　　处：《系统仿真学报》2006年第12期3554-3556,共3页Journal of System Simulation

基　　金：博士点基金资助项目(2003001312)

摘　　要：利用Simulink构建了TCP拥塞控制模块和PI(ProportionalIntegral)控制器模块,并在此基础上构建了多个TCP连接竞争一条瓶颈链路的仿真场景。通过与网络仿真工具ns-2的对比仿真实验表明,Simulink仿真模型能够模拟TCP/PI系统的瞬态特性,而且在仿真时间上具有绝对的优势,可以用于大规模网络的参数和性能研究。Based on Simulink, TCP congestion control model and PI controller model were built. Based on these models, a simulation scene with multiple TCP connections competing for a single bottleneck link was built. Compared with networks simulation tool ns-2, the simulation results show that this model can simulate the transient characteristic of TCP/PIand have overwhelming performance on simulating time. So the model can be used on the research of parameters and performances of large scale networks.

关 键 词：SIMULINK NS-2 TCP PI控制器 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]