计算机应用与软件2017，Vol.34Issue(8)：245-250,6.DOI:10.3969/j.issn.1000-386x.2017.08.044
一种基于正态分布函数的新TCP拥塞控制机制
A NEW TCP CONGESTION CONTROL MECHANISM BASED ON NORMAL DISTRIBUTED FUNCTION
摘要
Abstract
So far the congestion control has become the most important factor to ensure the stability and robustness of the Internet.However, the AIMD algorithm used in TCP congestion control mechanism currently is unstable and insufficient.There exist practical problems in the rationality and stability of the additive increase and the multiplicative reduction.To solve these problems, we provide a new TCP congestion control mechanism, based on normal distributed function, instead of the AIMD algorithm.And the whole congestion avoidance, fast retransmit and recovery phase are divided into three states: light load, overload and congestion, according to the regulation of the difference between the trigger value use different algorithms.Finally, the rationality and feasibility of the new algorithm have been verified by using mathematical analysis.Furthermore, the simulation results from NS3 demonstrate that the new TCP congestion control mechanism can obviously reduce packet losses and the impact of network burst transmission, improve the bandwidth utilization ratio and the network throughput.关键词
加性增加乘性减小/拥塞避免/拥塞窗口/阈值/往返延迟时间/正态分布/NS3仿真Key words
AIMD Congestion avoidance/Congestion window/Threshold/RTT/Normal distribution/NS3 simulation分类
信息技术与安全科学引用本文复制引用
茹新宇,刘渊..一种基于正态分布函数的新TCP拥塞控制机制[J].计算机应用与软件,2017,34(8):245-250,6.基金项目
国家自然科学基金项目(61602213) （61602213）
江苏省自然科学基金项目(BK20151131). （BK20151131）
