Nonlinear stability analysis for active queue management

Active queue management (AQM) has been proposed to solve the end-to-end TCP network congestion problem recently. At present, a large number of AQM schemes have been shown, which have focused on stability around an operating point and have not usually examined the nonlinear stability in the face of random traffic. Nonlinear stability analysis often relies on some heuristics and network traffic controllers that appear to be highly correlated with the multiple bottleneck network state. In this paper, we are motivated by the distributed fashion of TCP flows control across the network and analyze the nonlinear performance of multiple bottleneck AQM scheme. Moreover, we give simulation results for the nonlinear stability performance when network congestion links is 2 and 3.