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We consider a transmitter-receiver pair in a slotted-time system. The transmitter observes a dynamic source and sends updates to a remote receiver through an error-free communication channel that suffers a random delay. We consider two…

Information Theory · Computer Science 2025-12-19 Yutao Chen , Anthony Ephremides

The Age of Incorrect Information (AoII) is a recently proposed metric for real-time remote monitoring systems. In particular, AoII measures the time the information at the monitor is incorrect, weighted by the magnitude of this…

Information Theory · Computer Science 2024-12-05 Konstantinos Bountrogiannis , Anthony Ephremides , Panagiotis Tsakalides , George Tzagkarakis

In this paper, we introduce the Age of Incorrect Information (AoII) as an enabler for semantics-empowered communication, a newly advocated communication paradigm centered around data's role and its usefulness to the communication's goal.…

Information Theory · Computer Science 2022-10-12 Ali Maatouk , Mohamad Assaad , Anthony Ephremides

In this paper, we introduce a new performance metric in the framework of status updates that we will refer to as the Age of Incorrect Information (AoII). This new metric deals with the shortcomings of both the Age of Information (AoI) and…

Information Theory · Computer Science 2020-07-10 Ali Maatouk , Saad Kriouile , Mohamad Assaad , Anthony Ephremides

This work introduces a framework for analyzing the Age of Incorrect Information (AoII) in a real-time monitoring system with a generic discrete-time Markov source. We study a noisy communication system employing a hybrid automatic repeat…

Information Theory · Computer Science 2026-03-31 Konstantinos Bountrogiannis , Anthony Ephremides , Panagiotis Tsakalides , George Tzagkarakis

We consider a slotted-time system with a transmitter-receiver pair. In the system, a transmitter observes a dynamic source and sends updates to a remote receiver through a communication channel. We assume that the channel is error-free but…

Information Theory · Computer Science 2023-01-19 Yutao Chen , Anthony Ephremides

This paper investigates the Age of Incorrect Information (AoII) in a communication system whose channel suffers a random delay. We consider a slotted-time system where a transmitter observes a dynamic source and decides when to send updates…

Information Theory · Computer Science 2025-12-19 Yutao Chen , Anthony Ephremides

This paper investigates the problem of minimizing the Age of Incorrect Information (AoII) when the communication channel has a random delay. We consider a slotted-time system where a transmitter observes a dynamic source and decides when to…

Information Theory · Computer Science 2023-01-19 Yutao Chen , Anthony Ephremides

The age of Information (AoI) has been introduced to capture the notion of freshness in real-time monitoring applications. However, this metric falls short in many scenarios, especially when quantifying the mismatch between the current and…

Information Theory · Computer Science 2023-09-06 Saad Kriouile , Mohamad Assaad

The age of Incorrect Information (AoII) has been introduced recently to address the shortcomings of the standard Age of information metric (AoI) in real-time monitoring applications. In this paper, we consider the problem of monitoring the…

Information Theory · Computer Science 2021-02-08 Saad Kriouile , Mohamad Assaad

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 source observing a discrete-time finite-state Markov chain…

Information Theory · Computer Science 2025-12-04 Ismail Cosandal , Sennur Ulukus , Nail Akar

This paper considers an Industrial Internet of Thing (IIoT) system with a source monitoring a dynamic process with randomly generated status updates. The status updates are sent to an designated destination in a real-time manner over an…

Information Theory · Computer Science 2019-12-17 Qian Wang , He Chen , Yonghui Li , Zhibo Pang , Branka Vucetic

This work is motivated by the need of collecting fresh data from power-constrained sensors in the industrial Internet of Things (IIoT) network. A recently proposed metric, the Age of Information (AoI) is adopted to measure data freshness…

Information Theory · Computer Science 2020-03-12 Haoyue Tang , Jintao Wang , Linqi Song , Jian Song

Age of information (AoI), defined as the time elapsed since the last received update was generated, is a newly proposed metric to measure the timeliness of information updates in a network. We consider AoI minimization problem for a network…

Information Theory · Computer Science 2018-03-20 Rajat Talak , Sertac Karaman , Eytan Modiano

We study a goal-oriented communication system in which a source monitors an environment that evolves as a discrete-time, two-state Markov chain. At each time slot, a controller decides whether to sample the environment and if so whether to…

Information Theory · Computer Science 2025-08-12 Rishabh S. Pomaje , Jayanth S. , Rajshekhar V. Bhat , Nikolaos Pappas

The Age of Information (AoI) has emerged as a critical metric for quantifying information freshness; however, its interplay with channel estimation in partially observable wireless systems remains underexplored. This work considers a…

Information Theory · Computer Science 2025-07-08 Onur Ayan , Jiping Luo , Xueli An , Nikolaos Pappas

Age of Information (AoI) has attracted much attention recently due to its capability of characterizing the freshness of information. To improve information freshness over fading channels, efficient scheduling methods are highly desired for…

Information Theory · Computer Science 2020-02-24 Yalei Wang , Wei Chen

The age of incorrect information (AoII) process which keeps track of the time since the source and monitor processes are in sync, has been extensively used in remote estimation problems. In this paper, we consider a push-based remote…

Information Theory · Computer Science 2025-04-15 Ismail Cosandal , Sennur Ulukus , Nail Akar

Age of incorrect information (AoII) is a recently proposed freshness and mismatch metric that penalizes an incorrect estimation along with its duration. Therefore, keeping track of AoII requires the knowledge of both the source and…

Information Theory · Computer Science 2024-11-12 Ismail Cosandal , Sennur Ulukus , Nail Akar

Age of information (AoI) is one of the key performance metrics for Internet of things (IoT) systems. Timely status updates are essential for many IoT applications; however, they are subject to strict constraints related on the available…

Information Theory · Computer Science 2021-08-05 Elvina Gindullina , Leonardo Badia , Deniz Gündüz
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