6 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…
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…
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…
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…
Wireless communications with user equipment mounted Reconfigurable Intelligent Surfaces
I. Zakir Ahmed, Hamid Sadjadpour
In traditional Reconfigurable Intelligent Surfaces (RIS) systems, the RIS is mounted on stationary structures like buildings, walls, or posts. They have shown promising results in…