8 papers
Age Dispersion and Higher-Order AoI in Status Update Systems
Mohammad Moltafet, Roy D. Yates, Marian Codreanu +1
We introduce and characterize \emph{age dispersion} as a measure of temporal consistency in status update systems. Age dispersion is defined as the difference between the ages of t…
Squeezing the Most Out of Preemption for AoI Minimization: Single-source Case
Nail Akar, Mohammad Moltafet, Sennur Ulukus +2
In this work, we study a single-source single-server continuous-time status update system where the updates arrive according to a Poisson process and update service times are gener…
Status Updating in Two-Way Delay Systems with Preemption
Jinxin Yang, Mohammad Moltafet, Hamid R. Sadjadpour
We consider a status update system consisting of a sampler, a sink, and a controller located at the sink. The controller sends requests to the sampler to generate and transmit stat…
Multi-Source M/G/1/1 Queues with Probabilistic Preemption
Mohammad Moltafet, Hamid R. Sadjadpour, Zouheir Rezki +2
We consider a multi-source status update system consisting of multiple independent sources, a single server, and a single sink. Each source generates packets according to a Poisson…
Goal-Oriented Remote Tracking Through Correlated Observations in Pull-based Communications
Abolfazl Zakeri, Mohammad Moltafet, Marian Codreanu
We address the real-time remote tracking problem in a status update system comprising two sensors, two independent information sources, and a remote monitor. The status updating fo…
An Unconditionally Secure Encryption Scheme for IoBT Networks
Mohammad Moltafet, Hamid R. Sadjadpour, Zouheir Rezki
We consider an Internet of Battlefield Things (IoBT) system consisting of multiple devices that want to securely communicate with each other during a mission in the presence of an…