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IEEE Transactions on Very Large Scale Integration (VLSI) Systems
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RTSS '03 Proceedings of the 24th IEEE International Real-Time Systems Symposium
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Energy consumption has become an increasingly important consideration in designing many real-time embedded systems. Variable voltage processors, if used properly, can dramatically reduce such system energy consumption. In this paper, we present a technique to determine voltage settings for a variable voltage processor that utilizes a fixed priority assignment to schedule jobs. Our approach also produces the minimum constant voltage needed to feasibly schedule the entire job set. Our algorithms lead to significant energy saving compared with previously presented approaches.