An energy-efficient periodic resource model for cyber-physical systems By Suzanne Elashri
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Cyber-Physical Systems (CPS), especially real-time systems, are subject to time constraints that should be met for the applications to run properly. The schedulability of workloads can be analyzed by determining the supply and demand bound functions (sbf & dbf) when the minimum resource availability (sbf) can satisfy the maximum possible resource demand (dbf) of the workload under a specific scheduling algorithm during a given time interval. Typical real-time systems are insufficient resource reservation by over-provisioning resources when resource supply is always higher than the workload demand. Energy efficiency considerations are required for resource reservations in real-time systems when calculating the optimum processor speed to ensure that the supply of resources is no less than the workload demand during any time intervals. Therefore, we explore an energy-efficient Dynamic Speed Scaling technique for CPS to efficiently estimate resource reservation and efficiently reduce energy consumption.