Enhanced TCP Vegas Congestion Control Algorithm Based on Congestion Status Differentiation over GEO Satellite Networks
Zhu Meng · 2008
In order to solve the problems existing at the application of TCP Vegas in GEO satellite network,based on TCP Vegas-A algorithm,combining the advantages of TCP New Veno algorithm,an improved algorithm termed TCP Vegas-A+ was proposed.TCP Vegas-A+ adds the monitoring algorithm of the network state for classifying the network state into congestion increase and congestion decrease.When the network state is in congestion decrease,TCP Vegas-A+ increases the congestion window in a more radical way,otherwise increases the congestion window in a less radical way.Simulation results show that the improved algorithm has higher throughput and better bandwidth capacity competition with the Reno than the existing TCP Vegas improved algorithms,and can be well applied to GEO satellite network environment.