Abstract
With the demands of power-constrained mobile ap-plications and devices, it becomes a crucial and chal-lenging issue to reduce the power consumptions of em-bedded systems. In this paper, we focus on the issue of scheduling problems with variable voltage processor core to optimize power consumption in real-time sys-tems. We model the problem with real-time and on-line problems, and our solution is to incorporate the reservation list scheme for variable voltage schedulings. Our decision algorithm consists of a variety of selection criteria including the best effort, average computation time, average power consumption, average energy con-sumption, pre-defined threshold value, and weighted hy-brid schemes for scheduling task. We think our scheme gives a comprehensive study for the problem of schedul-ing real-time tasks to reduce energy consumptions. 1. Introduction and Related