6 papers
When Fresh Information Is Not Enough: Age-of-Actuation-Optimal Scheduling for Energy-Harvesting Actuators
Ali Nikkhah, Anthony Ephremides, Nikolaos Pappas
We study transmission scheduling in an energy-harvesting actuation system where an actuation requires both a received update and available energy. While age of information (AoI) me…
Semantics in Actuation Systems: From Age of Actuation to Age of Actuated Information
Ali Nikkhah, Anthony Ephremides, Nikolaos Pappas
In this paper, we study the timeliness of actions in communication systems where actuation is constrained by control permissions or energy availability. Building on the Age of Actu…
Age of Actuated Information and Age of Actuation in a Data-Caching Energy Harvesting Actuator
Ali Nikkhah, Anthony Ephremides, Nikolaos Pappas
In this paper, we introduce two metrics, namely, age of actuation (AoA) and age of actuated information (AoAI), within a discrete-time system model that integrates data caching and…
Secrecy Coding for the Binary Symmetric Wiretap Channel via Linear Programming
Ali Nikkhah, Morteza Shoushtari, Bahareh Akhbari +1
In this paper, we use a linear programming (LP) optimization approach to evaluate the equivocation for a wiretap channel where the main channel is noiseless, and the wiretap channe…
Age of Actuation and Timeliness: Semantics in a Wireless Power Transfer System
Ali Nikkhah, Anthony Ephremides, Nikolaos Pappas
In this paper, we investigate a model relevant to semantics-aware goal-oriented communications, and we propose a new metric that incorporates the utilization of information in addi…
Age of Actuation in a Wireless Power Transfer System
Ali Nikkhah, Anthony Ephremides, Nikolaos Pappas
In this paper, we study a model relevant to semantics-aware goal-oriented communications. More specifically, observations from an external process are transmitted through status up…