Equivalent bandwidth adaptation with energy preservation under delay constraints

The paper investigates the balance between Quality of Service (QoS) and power consumption for a traffic queue. Automatic adaptation to the power of the packet processing engine is sought through a heuristics and an optimal control strategy. The study allows to track the behavior of the system over time, thus avoiding the optimization of the steady state behavior of the system, which is hardly applicable over small time horizons and with high-variable traffics. The algorithms are validated over a very large set of traffic scenarios, buffer size and delay constraints.