基于速度控制的API网络拥塞控制策略  

API network congestion control scheme based on velocity control

作　　者：陆锦军[1] 王执铨[1] 

机构地区：[1]南京理工大学自动化学院

出　　处：《计算机应用》2006年第5期1137-1140,1143,共5页journal of Computer Applications

基　　金：国家自然科学基金资助项目(60374066);江苏省自然科学基金(BK2004132)

摘　　要：针对PI控制器响应速度方面的不足,提出了一种基于速度控制的自适应网络动态变化新的主动队列管理算法———APIV控制器。在PI控制器的基础上,根据瞬时队列长度,增加速度控制;根据实时测量链路的数据包丢失率,获得当前的负载信息,动态调整PI算法中的有关参数。理论分析和仿真表明,APIV控制器相对于PI控制器及其改进算法,不仅具有更快响应速度和收敛速度、更小的队列抖动,而且提高了缓冲区的利用率。An adaptive proportional integral-velocity（API-V） Controller for new active queue management scheme was proposed, which is well suited to dynamic network environments based on velocity control, in order to address the slow response of PI controller. Velocity controller was added based on PI controller when the length of queue is larger. The controller obtains present load information according to present measured dropping probability, then sets up the relevant parameters in PI scheme dynamically. Analysis and simulation results show that API-V controller can not only achieve faster convergence speed, faster response and smaller queue oscillation than PI controller and improved PI controller but also increase the buffer utilization.

关 键 词：速度控制 AQM API API-V 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]