无标度网络拥塞控制方法研究  

Research on Scale-free Network Congestion Control

作　　者：文宏[1,2] 樊晓平[1] 张会福[2] 陈安华[2] 

机构地区：[1]中南大学信息科学与工程学院,长沙410083 [2]湖南科技大学计算机科学与工程学院,湖南湘潭411201

出　　处：《小型微型计算机系统》2013年第11期2482-2486,共5页Journal of Chinese Computer Systems

基　　金：国家自然科学基金项目(51175169)资助

摘　　要：当前的研究表明,许多实际网络如通信网、Internet的路由层、AS层以及城市交通网、航空网等都具有无标度特性,因此无标度网络的拥塞控制是一个值得研究的有实际意义的问题.本文建立了一个典型的无标度网络模型,通过仿真交通流量在网络中的行为特性,结合网络物理特性及路由策略来研究网络拥塞及其控制方法.研究表明网络拓扑的改变对网络性能有较大的影响;动态路由策略较静态路由策略更能避免网络拥塞;在进行带宽分配、节点容量设置及节点处理速度配置时必须考虑节点度才能更好地提高网络性能,避免网络拥塞.本文的研究成果可为网络物理配置及路由机制设计提供基础.Current research shows that many practical networks, such as communication networks, the Internet routing layer, and so the AS layer, as well as urban transportation network, aviation network has a scale-free features. Therefore,the scale-free network congestion control is a problem of practical significance, worthy of timber study. We construct a typical scale-free network model to study the network congestion control method by simulating the behavior of traffic flow in the network, combined with the physical properties and routing strategy. The study shows that change of network topology has a large impact on network performance; dynam- ic routing strategy is better than static routing strategy to avoid network congestion; during bandwidth allocation, node capacity and node processing speed configuration, we must consider the node degrees in order to improve network performance and avoid network congestion. The research results of this paper provide a basis for the physical network configuration and routing mechanism design.

关 键 词：复杂网络 无标度网络 网络拥塞控制 路由策略 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]