Younès Chandarli

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The paper addresses the real-time xed-priority scheduling problem for battery-powered embedded systems whose energy storage unit is replenished by an environmental energy source. In this context, a task may meet its deadline only if its cost of energy can be satised early enough. Hence, a scheduling policy for such a system should account for properties of(More)
This paper introduces sufficient schedulability tests for fixed-priority pre-emptive scheduling of a real-time system under energy constraints. In this problem, energy is harvested from the ambient environment and used to replenish a storage unit or battery. The set of real-time tasks is decomposed into two different types of task depending on whether their(More)
—Energy harvesting is the process of generating electrical energy from environmental sources such as solar panels. In recent years, this term has been frequently applied in the context of small autonomous devices such as wireless sensor nodes. The classical scheduling theory is insufficient for this kind of systems and new scheduling problems arise in this(More)
This paper introduces sufficient schedulability tests for fixed-priority pre-emptive scheduling of a real-time system under energy constraints. In this problem, energy is harvested from the ambient environment and used to replenish a storage unit or battery. The set of real-time tasks is decomposed into two different types of task depending on whether their(More)
—This paper investigates schedulability analysis for thermal-aware real-time systems. Thermal constraints are becoming more and more critical in new generation miniaturized embedded systems, e.g. medical implants. As part of this work, we adapt the P F PASAP algorithm proposed in [1] for energy-harvesting systems to thermal-aware ones. We prove its(More)
This paper addresses the real-time xed-priority scheduling problem for battery-powered embedded systems whose energy storage unit is replenished by an environmental energy source. In this context, a scheduling policy should account for incoming energy, capacity of the battery and tasks cost of energy. Thus, classical xed-priority schedulers are no longer(More)
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