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Energy-Efficient Fault-Tolerant Scheduling Approach for Embedded Real Time Systems

Chafik Arar, Hamoudi Kalla, Salim Kalla, and Sonia Sabrina Bendib
Department of Computer Science, University of Banta, Algeria
Abstract—In this paper, we propose a fault-tolerant scheduling heuristic that achieves low energy consumption and high reliability efficiency. Our scheduling algorithm is dedicated to multi-bus heterogeneous architectures, which take as input a given system description and a given fault hypothesis. It is based on active redundancy to mask a fixed number k of failures supported in the system, so that there is no need for detecting and handling such failures. In order to maximize the system’s reliability, the replicas of each operation are scheduled on different reliable processors. Finally, we show with an example that our approach can maximize reliability and reduce energy consumption when using active redundancy.

Index Terms—embedded systems, real time systems, scheduling, energy consumption, reliability, active redundancy, multi-bus

Cite: Chafik Arar, Hamoudi Kalla, Salim Kalla, and Sonia Sabrina Bendib, "Energy-Efficient Fault-Tolerant Scheduling Approach for Embedded Real Time Systems," International Journal of Electrical Energy, Vol. 1, No. 4, pp. 274-278, December 2013. doi: 10.12720/ijoee.1.4.274-278
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