A delay-based end-to-end congestion avoidance scheme for multimedia networks

Authors:
Li Yan;Bin Qiu;Lichang Che
Affiliations:
School of Computer Science and Software Engineering, Monash University, Vic, Australia;School of Computer Science and Software Engineering, Monash University, Vic, Australia;School of Computer Science and Software Engineering, Monash University, Vic, Australia
Venue:
PCM'04 Proceedings of the 5th Pacific Rim Conference on Advances in Multimedia Information Processing - Volume Part II
Year:
2004

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Abstract

Multimedia applications are emerging on the current Internet. They have stringent requirements for quality of service (QoS) in terms of loss ratio, delay, delay jitter and throughput. Loss-based congestion control algorithms in the current Internet, however, are not effective for delivering multimedia applications. As a solution, a delay-based end-to-end congestion avoidance (DECA) algorithm is proposed. In this scheme, a proportional controller is designed to control the sending rate. The design principle of the controller is presented in detail in this paper. Simulation results provide evidence that the proposed scheme is capable of improving network utilization and reducing loss ratios, mean delay and delay jitter. Its superiority over other end-to-end congestion control algorithms is also demonstrated.