Online Mode Switch Algorithms for Maintaining Data Freshness in Dynamic Cyber Physical Systems

Online Mode Switch Algorithms for Maintaining Data Freshness in Dynamic Cyber Physical Systems Abstract Maintaining the freshness of real-time data is one of the crucial design issues in cyber-physicalsystems (CPS). Past studies have focused on designing update algorithms to minimize the workload imposed by a fixed set of update tasks while ensuring the temporal validity of data. In this paper, we revisit this problem in dynamic cyber-physical systems (DCPS) […]


Multiplier less Unity-Gain SDF FFTs

Multiplier less Unity-Gain SDF FFTs Abstract: In this brief, we propose a novel approach to implement multiplierless unity-gain single-delay feedback fast Fourier transforms (FFTs). Previous methods achieve unity-gain FFTs by using either complex multipliers or nonunity-gain rotators with additional scaling compensation. Conversely, this brief proposes unity-gain FFTs without compensation circuits, even when using nonunity-gain rotators. […]