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Related papers: Age of Information Minimization in Goal-Oriented C…

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Age of Incorrect Information (AoII) is a newly introduced performance metric that considers communication goals. Therefore, comparing with traditional performance metrics and the recently introduced metric - Age of Information (AoI), AoII…

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

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

Age of information (AoI) is an effective measure to quantify the information freshness in wireless status update systems. It has been further validated that the peak AoI has the potential to capture the core characteristics of the aging…

Systems and Control · Electrical Eng. & Systems 2024-06-05 Yuquan Xiao , Qinghe Du , George K. Karagiannidis

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

Age of information (AoI) is a powerful metric to evaluate the freshness of information, where minimization of average statistics, such as the average AoI and average peak AoI, currently prevails in guiding freshness optimization for related…

Information Theory · Computer Science 2023-11-29 Yuquan Xiao , Qinghe Du

There is a growing interest in analysing the freshness of data in networked systems. Age of Information (AoI) has emerged as a popular metric to quantify this freshness at a given destination. There has been a significant research effort in…

Information Retrieval · Computer Science 2020-01-22 Jaya Prakash Champati , Ramana R. Avula , Tobias J. Oechtering , James Gross

Age of information (AoI) is a recently proposed metric for measuring information freshness. AoI measures the time that elapsed since the last received update was generated. We consider the problem of minimizing average and peak AoI in a…

Information Theory · Computer Science 2019-12-10 Rajat Talak , Sertac Karaman , Eytan Modiano

We study the average Age of Information (AoI) in a system where physical sources produce independent discrete-time updates that are each observed by several sensors. We devise a model that is simple, but still capable to capture the main…

Information Theory · Computer Science 2019-03-20 Anders E. Kalør , Petar Popovski

We develop a simple model for the timely monitoring of correlated sources over a wireless network. Using this model, we study how to optimize weighted-sum average Age of Information (AoI) in the presence of correlation. First, we discuss…

Networking and Internet Architecture · Computer Science 2022-08-04 Vishrant Tripathi , Eytan Modiano

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

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

Age of information (AoI) has been proposed as a more suitable metric for characterizing the freshness of information than traditional metrics like delay and throughput. However, the calculation of AoI requires complex analysis and strict…

Information Theory · Computer Science 2023-03-07 Licheng Chen , Yunquan Dong

In this paper, we study a model relevant to semantics-aware goal-oriented communications. More specifically, observations from an external process are transmitted through status updates to a battery-powered receiver. From these updates, the…

Information Theory · Computer Science 2023-03-02 Ali Nikkhah , Anthony Ephremides , Nikolaos Pappas

Age of information (AoI) measures information freshness at the receiver. AoI may provide insights into quality of service in communication systems. For this reason, it has been used as a cross-layer metric for wireless communication…

Systems and Control · Electrical Eng. & Systems 2020-05-06 Onur Ayan , H. Murat Gürsu , Sandra Hirche , Wolfgang Kellerer

Age-of-information (AoI) is a metric quantifying information freshness at the receiver. Since AoI combines packet generation frequency, packet loss, and delay into a single metric, it has received a lot of research attention as an interface…

Information Theory · Computer Science 2019-11-25 Onur Ayan , Mikhail Vilgelm , Wolfgang Kellerer

The age of information (AoI) performance metric for point-to-point wireless communication systems is analytically studied under Rician-faded channels and when the receiver is equipped with multiple antennas. The general scenario of a…

Information Theory · Computer Science 2022-01-03 Nikolaos I. Miridakis , Theodoros A. Tsiftsis , Guanghua Yang

This paper studies efficient data management and timely information dissemination for real-time monitoring of an $N$-state Markov process, enabling accurate state estimation and reliable actuation decisions. First, we analyze the Age of…

Information Theory · Computer Science 2026-04-02 Mehrdad Salimnejad , Anthony Ephremides , Marios Kountouris , Nikolaos Pappas

Age of Information (AoI), which measures the time elapsed since the generation of the last received packet at the destination, is a new metric for real-time status update tracking applications. In this paper, we consider a status-update…

Information Theory · Computer Science 2022-02-15 Jianhang Zhu , Jie Gong

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

The significance of the freshness of sensor and control data at the receiver side, often referred to as Age of Information (AoI), is fundamentally constrained by contention for limited network resources. Evidently, network congestion is…

Multiagent Systems · Computer Science 2023-12-21 Anam Tahir , Kai Cui , Bastian Alt , Amr Rizk , Heinz Koeppl
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