Department of Computer Science and Engineering Abstract Low power and energy consumption will always be an essential requirement in many real-time embedded applications.
Voltage scaling is a relative novel approach to reducing energy consumption.
In this talk, we propose two scheduling methods for voltage-clock scaling of two discrete operation modes. Coordinating with fixed priority schedules, the first method statically assigns each task to a suitable operation mode, whereas the second one dynamically determines the necessary instances of changing operation mode. The proofs will be given to show the schedulability of the proposed methods. With several simulation evaluations and the characteristics of existing embedded processors, we demonstrate that the energy consumption can be reduced significantly under the proposed methods. Dr. Yann-Hang Lee received his Ph.D. degree in Computer, Information, and Control Engineering from the University of Michigan, Ann Arbor, MI, in 1984.