Robust control and rate coordination for efficiency and fairness in ABR traffic with explicit rate marking
Le Yi Wang, Loren Schwiebert · 2000
The problem of efficiency and fairness of ABR (available bit rate) traffic with explicit rate-marking is investigated from a control point of view. It is revealed that due to significant uncertainty on time delays in ABR traffic and strong interaction among switches, ABR traffic imposes a great challenge to control strategy development. Focusing on robustness of traffic control and asymptotic fairness, we propose a new control strategy that employs robust control to accommodate delay uncertainty and rate coordination for fairness. Conditions are presented under which robust stability and convergence are guaranteed.