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Performance boosting has been a highly important goal in system designs in the past decades. Not until recently, energy efficiency becomes another critical feature being pursued in a wide variety of products, especially for battery powered devices. Various studies have been conducted for energy efficient systems techniques. The most adopted ones are Dynamic Voltage Scaling (DVS) and Dynamic Power Management (DPM). However, all the previous research have disregarded an important aspect of these devices, namely rechargeability of the batteries. Several studies have explored the problem of scheduling real-time tasks in a monoprocessor rechargeable system. This paper summarizes the state of art research results of uniprocessor real-time systems under energy constraints. Then, we extend our work to deal with the problem of scheduling real-time tasks in a monoprocessor rechargeable systems.
Date of Conference: 15-17 July 2009