Enhanced congestion control algorithm for high-speed TCP

Abstract

Current TCP congestion control can be inefficient and unstable in high-speed wide area networks due to its slow response with a large congestion window. Several congestion control proposals have already been suggested to solve these problems. In this paper, we propose a new variant of TCP for a high-speed network, which combines delay-based congestion control with loss-based congestion control. Our simulation results show that the proposed scheme performs better than the existing high-speed TCP protocols in terms of fairness, stability, and scalability, while providing TCP friendliness at the same time. © IFIP International Federation for Information Processing 2005.