基于速率控制的计算机网络拥塞控制研究

Research on Computer Network Congestion Control Based on Rate Control

在对计算机的网络拥塞控制中,传统方法对速率的控制欠缺,导致控制效果不理想。因此,提出基于速率控制的计算机网络拥塞控制研究,运用随机图理论改进网络拓扑结构,保证节点分布均匀;建立PI速率控制器,通过虚拟路由器对节点间的速率进行控制。在保证节点速率有效控制后,通过设置路由因子来优化节点间的排队博弈,使用TPC传输协议进行源端控制,实现网络拥塞控制。实验结果表明:在高带宽延迟下,研究方法仍有较高的吞吐率,证明网络拥塞控制有效。

In the network congestion control of computers,the traditional method lacks control of the rate,resulting in unsatisfactory control effect.Therefore,the research of computer network congestion control based on rate control is proposed,and the random graph theory is used to improve the network topology to ensure the uniform distribution of nodes.Establish a PI rate controller to control the rate between nodes through a virtual router.After ensuring the effective control of the node rate,the routing factor is set to optimize the queuing game between the nodes to ensure the data transmission between the nodes.The TPC transmission protocol is used for source control to achieve network congestion control.The experimental results show that the research method still has a higher throughput rate under high bandwidth delay,which proves that the network congestion control is effective.