Random early detection gateways for congestion avoidance
IEEE/ACM Transactions on Networking (TON)
Dynamics of random early detection
SIGCOMM '97 Proceedings of the ACM SIGCOMM '97 conference on Applications, technologies, architectures, and protocols for computer communication
Promoting the use of end-to-end congestion control in the Internet
IEEE/ACM Transactions on Networking (TON)
Fluid-based analysis of a network of AQM routers supporting TCP flows with an application to RED
Proceedings of the conference on Applications, Technologies, Architectures, and Protocols for Computer Communication
End-to-end congestion control for the internet: delays and stability
IEEE/ACM Transactions on Networking (TON)
General AIMD Congestion Control
General AIMD Congestion Control
Bounds on the throughput of congestion controllers in the presence of feedback delay
IEEE/ACM Transactions on Networking (TON)
Global stability of internet congestion controllers with heterogeneous delays
IEEE/ACM Transactions on Networking (TON)
Stability and TCP-friendliness of AIMD/RED systems with feedback delays
Computer Networks: The International Journal of Computer and Telecommunications Networking
Stability analysis of multiple-bottleneck networks
Computer Networks: The International Journal of Computer and Telecommunications Networking
Performance analysis of TCP-friendly AIMD algorithms for multimedia applications
IEEE Transactions on Multimedia
Computer Networks: The International Journal of Computer and Telecommunications Networking
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The Additive Increase and Multiplicative Decrease (AIMD) congestion control algorithm of TCP deployed in the end systems and the Random Early Detection (RED) queue management scheme deployed in the intermediate systems contribute to Internet stability and integrity. Previous research based on the fluid-flow model analysis indicated that, with feedback delays, the TCP/RED system may not be asymptotically stable when the time delays or the bottleneck link capacity becomes large [3]. However, as long as the system operates near its desired equilibrium, small oscillations around the equilibrium are acceptable, and the network performance (in terms of efficiency, loss rate, and delay) is still satisfactory. In this paper, we study the practical stability of AIMD/RED system with feedback delays and with both homogeneous and heterogeneous flows. We obtain theoretical bounds of the flow window size and the RED queue length, as functions of the number of flows, link capacity, RED queue parameters, and AIMD parameters. Numerical results with Matlab and simulation results with NS-2 are given to validate the correctness and demonstrate the tightness of the derived bounds. The analytical and simulation results provide important insights on which system parameters contribute to higher system oscillations and how to set parameters (such as buffer size and queue management parameters) to ensure system efficiency with bounded delay and loss. Our results can also help to predict and control the system performance for Internet with higher data rate links multiplexed with heterogeneous flows with different parameters.