Priority based Energy Efficient Dynamic Power Scaling

As part of the energy efficient system modeling, which is of interest amongst all areas of research in industry and academia, this paper proposes a design of energy efficient Ethernet access system. The model estimates the feasibility of operating the network interface component under power saving modes, without compromising on the quality of service. In order to prevent degradation of the service quality, the constraint ensures that the estimated duration of sleep time does not go beyond a certain threshold parameter, or maximum allowable delay limit per packet processed, within a given flow. The allowable limit or threshold value of the delay is fixed across each flow and corresponds to its priority tag, where a higher priority means, lower allowable delay. Simulations have been carried out for the algorithm and graphs plotted, to validate the feasibility of the proposed model.