关键词: TCP TCP Vegas 性能模型 吞吐量

Abstract:

The previous theory and experiments show that the delay-based algorithm outperforms other congestion control algorithms with loss-based events. Unfort unately, these models always neglect the impact of traffic in the reverse path. To address this problem, we develop a simple analytical model, and study the relations between the equilibrium window size and the round trip time （RTT）. Results show that the delay in the reverse path has the same importaance as the forward data path in determining the equilibrium window size and the throughput of the delay-based algorithm in congestion control.

Key words: TCP, TCP Vegas, performance model, throughput