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2003
IEEE

Combined Dynamic Voltage Scaling and Adaptive Body Biasing for Heterogeneous Distributed Real-time Embedded Systems

9 years 7 months ago
Combined Dynamic Voltage Scaling and Adaptive Body Biasing for Heterogeneous Distributed Real-time Embedded Systems
Abstract— Dynamic voltage scaling (DVS) is a powerful technique for reducing dynamic power consumption in a computing system. However, as technology feature size continues to scale, leakage power is increasing and will limit power savings obtained by DVS alone. Previous system-level real-time scheduling approaches use DVS alone to optimize power consumption without considering leakage power. To overcome this limitation, we propose a new scheduling algorithm that combines DVS and adaptive body biasing (ABB) to simultaneously optimize both dynamic power consumption and leakage power consumption for real-time distributed embedded systems. First, we derive an analytical expression to determine the optimal supply voltage and body bias voltage under a given clock frequency. Based on this expression, we compute the optimal energy consumption at a given clock frequency and analyze the tradeoff between energy consumption and execution time for a set of tasks with precedence relationships and ...
Le Yan, Jiong Luo, Niraj K. Jha
Added 16 Mar 2010
Updated 16 Mar 2010
Type Conference
Year 2003
Where ICCAD
Authors Le Yan, Jiong Luo, Niraj K. Jha
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