AIMD拥塞控制算法分析

Analysis of the AIMD Congestion Control Algorithms

目前在Internet上主要的传输层协议大都以AIMD拥塞控制算法为基础,该文分析了其在保持数据流稳定性上的缺点,这和当前迅速发展的媒流体文件传输不相适应。提出了一种新的算法-PMIMD(比例乘性增加乘性减少)。仿真表明,该算法能减少控制的超调量,从而降低传输率的波动。

In this paper,we analyses the AIMD algorithms which has been us ed in many congestion control protocols in the Internet.We point out that th e AIMD algorithms do not fit transfers of real-time streaming file because th e AIMD algorithms can not keep the flow steady.We design a new algorithms-PM IMD(proportion multiplicative increase and multiplicative decrease).We confi rm experimentally that the new algorithms is effective in keeping the flow stea dy.