基于带宽测量的TCP拥塞控制慢启动改进  

Improvement of the TCP Congestion Control Slow Start Based on the Bandwidth Measurement

作　　者：何建新[1] 祝青 

机构地区：[1]湖南城市学院计算机科学系,益阳413000

出　　处：《计算机与数字工程》2008年第6期61-63,98,共4页Computer & Digital Engineering

摘　　要：TCP拥塞控制慢启动存在发送速率变化幅度大,网络性能低下的问题。分析相关慢启动改进算法及其局限,通过端到端时延带宽模型分析,提出基于带宽测量分阶段平滑慢启动改进算法,得出灵活慢启动参数模型并实现了自适应参数设置。仿真结果表明拥塞窗口中多个分组丢弃概率大大降低,网络传输性能得到明显改善。The TCP congestion control slow start has a problem that the send - velocity changes great and the capability of the network is low. This paper analyzes the limitation about the improved slow start algorithm and end - to - end delayed bandwidth model, and realized improved algorithm of phase - divided smooth slow start based on the bandwidth measurement, and got a flexible slow - start parameter model, realized the auto - adaptation parameter setting. The simulation results show that the lost probability of multi - packet in the congestion windows have great decrease and the capability of the network transfer have great improving.

关 键 词：拥塞控制 带宽 测量 MP-start 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]