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Leakage-aware battery lifetime analysis using the calculus of variations
, Article IEEE Transactions on Circuits and Systems I: Regular Papers ; Volume 67, Issue 12 , June , 2020 , Pages 4829-4841 ; Safaei, B ; Ejlali, A ; Chen, J.-J ; Sharif University of Technology
Institute of Electrical and Electronics Engineers Inc
2020
Abstract
Due to non-linear factors such as the rate capacity and the recovery effect, the shape of the battery discharge curve plays a significant role in the overall lifetime of the batteries. Accordingly, this paper proposes a simple heuristic battery-aware speed scheduling policy for periodic and non-periodic real-time tasks in Dynamic Voltage Scaling (DVS) systems with non-negligible leakage/static power. A set of comprehensive analysis has been conducted to compare the battery efficiency of the proposed policies with an optimal solution, which could be derived via the Calculus of Variations (CoV). These evaluations have taken into account both periodic and non-periodic tasks in DVS-based...