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Nail Akar

3 papers indexed

arxivcs.ITcs.NIcs.PF2026-07-21

Squeezing the Most Out of Preemption for AoI Minimization: Single-source Case

Nail Akar, Mohammad Moltafet, Sennur Ulukus, Marian Codreanu, Roy D. Yates

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 generally distributed. In our proposed setting, a preemption policy refers to one where a new update pree…

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arxivcs.ITcs.NIeess.SPeess.SY2026-06-30

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 particular, we assume an information source that observes a discrete-time finite-state Markov chain (DTMC…

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arxivcs.ITcs.NIeess.SP2026-06-29

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 given time slot, the monitor has the option of staying idle or sending a pull request to one of the…

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