5 papers · 1 filter
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…
AoI in M/G/1/1 Queues with Probabilistic Preemption
Mohammad Moltafet, Hamid R. Sadjadpour, Zouheir Rezki +2
We consider a status update system consisting of one source, one server, and one sink. The source generates packets according to a Poisson process and the packets are served accord…