ATM网络中基于极点配置的ABR业务拥塞控制器设计(英文)  

ABR CONGESTION CONTROLLER BASED ON POLE ASSIGNMENT IN ATM NETWORKS

作　　者：王春茹[1] 吴捷[1] 郭红霞[1] 

机构地区：[1]华南理工大学电力学院

出　　处：《陕西科技大学学报（自然科学版）》2007年第5期16-20,共5页Journal of Shaanxi University of Science & Technology

摘　　要：ATM网络中ABR业务采用基于速率反馈的拥塞控制机制,通过调节发送源发送速率以适应CBR/VBR等高优先级业务剩余的带宽.控制理论为ATM网络的拥塞控制提供了理论指导.作者分析了ATM网络中单拥塞节点的模型,应用极点配置方法设计了拥塞控制器,保证了瓶颈节点的网络缓冲区队列水平的稳定性及带宽的公平分配,从而有效避免了拥塞的发生.仿真结果验证了算法的有效性.ABR service has been specified to use a rate-based feedback control mechanism for congestion control and to provide control signal to throttled sources in order to regulate the rates of ABR service to adapt to varying link capacities. Thus it is possible for control theory to become an effective tool for congestion control. In this paper, we analyze the model of ATM network with a single congested node and design a congestion controller based on pole assignment. The algorithm guarantees the stability of network queues, along with the fair share of available bandwidth. Simulation studies show the validity of the algorithm.

关 键 词：AMT网络 ABR业务 极点配置 拥塞控制器 

分 类 号：TP3[自动化与计算机技术—计算机科学与技术]