A Dynamic and Self-Adaptive TCP-Friendly Congestion Control Mechanism in Next-Generation Networks

TCP-friendly congestion control is the key technique in next-generation-networks. An effective congestion control which uses the predominance of dynamic thresholds self- adaptive TCP-friendly congestion control (DATFCC) is proposed. The size of the receiver buffer butter was dynamically adjusted according to the state of the networks, the dropping probability was determined by the type and the size of the flows. It can keep multimedia flows available share bandwidth fairly with TCP flow. Network simulator (NS) simulation results show that the proposed DATFCC algorithm outperforms TCP-friendly rate control protocol and the TCP NewReno in terms of rate smoothness and fairness to TCP flows. It really improves routers´ ability on network congestion control in IP network.