A Phase-Divided Improvement Mechanism of the Congestion Control Slow Start Based on Bandwidth Measurement
XI Sheng-feng · Computer Engineering and Science · 2009
Research on the TCP congestion control slow start algorithm improves the end-to-end bandwidth measurement on real-time line.The TCP congestion control slow start has a problem that the send-velocity change is great and the capability of the network is low.This paper analyses the limitation about the improved slow start algorithm and end-to-end delayed bandwidth model,then advances the end-to-end available bandwidth measurement methods and realizes an improved algorithm of phase-divided smooth slow start based on the bandwidth measurement,and gets a flexible slow-start parameter model,realizes the auto-adaptation parameter setting.The simulation results show that the lost probability of the multi-packet in the congestion windows has great decrease and the capability of the network transfer has been greatly improved.