10 papers
Dual-Regime Absorbing Markov Chain Theory in Remote Estimation: Age-Minimizing Push Policies
Ismail Cosandal, Sennur Ulukus, Nail Akar
For a remote estimation system, we study the optimization of age of incorrect information (AoII), which is a recently proposed semantic-aware information freshness metric. In parti…
When and Which Sensor to Observe? Timely Tracking of a Joint Markov Source
Ismail Cosandal, Sennur Ulukus, Nail Akar
We investigate the problem of remote estimation (at a monitor) of a discrete-time joint Markov process with individual components which can be observed with dedicated sensors. At a…
How Far Back in Time a Digital Twin Reflects the State of the Physical Object: Age of Staleness
Ismail Cosandal, Sennur Ulukus
The groundbreaking metric age of information (AoI) has been introduced to measure information freshness in communication networks. As transformational as it is, AoI metric falls sh…
Age of Information with Age-Dependent Server Selection
Nail Akar, Ismail Cosandal, Sennur Ulukus
In this paper, we consider a single-source multi-server generate-at-will discrete-time non-preemptive status update system where update packets are transmitted using {\em only one}…
Semi-Markov Decision Process Framework for Age of Incorrect Information Minimization
Ismail Cosandal, Sennur Ulukus, Nail Akar
For a remote estimation system, we study age of incorrect information (AoII), which is a recently proposed semantic-aware freshness metric. In particular, we assume an information…
Optimal Source Coding of Markov Chains for Real-Time Remote Estimation
Ismail Cosandal, Sennur Ulukus
We revisit the source coding problem for a Markov chain under the assumption that the transmission times and how fast the Markov chain transitions its state happen at the same time…