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This paper investigates the Age of Information (AoI) performance of Frame Slotted ALOHA with Reservation and Data slots (FSA-RD). We consider a symmetric multi-access network where each user transmits its randomly generated status updates…

Information Theory · Computer Science 2022-06-03 Qian Wang , He Chen

This paper studies the problem of minimizing the age of information (AoI) in cellular vehicle-to-everything communications. To provide minimal AoI and high reliability for vehicles' safety information, NOMA is exploited. We reformulate a…

Networking and Internet Architecture · Computer Science 2022-10-19 Zoubeir Mlika , Soumaya Cherkaoui

Semantic communication is recognized for its high compression efficiency and robust resistance to noise. However, utilizing a fixed transmission rate in environments with dynamic signal-to-noise ratios (SNR) often results in inefficient use…

Signal Processing · Electrical Eng. & Systems 2025-04-30 Zhiye Sun , Shuai Ma , Shiyin Li

Age of Information (AoI) has recently received much attention due to its relevance in IoT sensing and monitoring applications. In this paper, we consider the problem of minimizing the AoI in a system in which a set of sources are observed…

Information Theory · Computer Science 2022-08-19 Anders E. Kalør , Petar Popovski

The notion of age of information (AoI) has become an important performance metric in network and control systems. Information freshness, represented by AoI, naturally arises in the context of caching. We address optimal scheduling of cache…

Distributed, Parallel, and Cluster Computing · Computer Science 2020-05-04 Ghafour Ahani , Di Yuan

Semantic communication has been increasingly integrated into edge computing systems for reconstruction tasks, owing to its advantages in source compression, robustness to channel noise, and task execution efficiency. However, the black-box…

Signal Processing · Electrical Eng. & Systems 2026-04-14 Huawei Hou , Suzhi Bi , Xian Li , Haixia Zhang , Zhi Quan

Semantic communication transmits the extracted features of information rather than raw data, significantly reducing redundancy, which is crucial for addressing spectrum and energy challenges in 6G networks. In this paper, we introduce…

Machine Learning · Computer Science 2025-05-27 Wenjun Zhang , Qiong Wu , Pingyi Fan , Kezhi Wang , Nan Cheng , Wen Chen , Khaled B. Letaief

Consider a network where a wireless base station (BS) connects multiple source-destination pairs. Packets from each source are generated according to a renewal process and are enqueued in a single-packet queue that stores only the freshest…

Networking and Internet Architecture · Computer Science 2025-01-14 Zhuoyi Zhao , Igor Kadota

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

Age of Information (AoI), namely the time that has elapsed since the most recently delivered packet was generated, is receiving increasing attention with the emergence of many real-time applications that rely on the exchange of…

Information Theory · Computer Science 2024-05-08 Xinlu Dai , Cyril Leung

To support emerging real-time monitoring and control applications, the timeliness of computation results is of critical importance to mobile-edge computing (MEC) systems. We propose a performance metric called age of task (AoT) based on the…

Signal Processing · Electrical Eng. & Systems 2019-05-29 Xianxin Song , Xiaoqi Qin , Yunzheng Tao , Baoling Liu , Ping Zhang

How is the limited capacity of working memory efficiently used to support human linguistic behaviors? In this paper, we propose Strategic Resource Allocation (SRA) as an efficiency principle for memory encoding in sentence processing. The…

Computation and Language · Computer Science 2025-09-01 Weijie Xu , Richard Futrell

The recent interweaving of AI-6G technologies has sparked extensive research interest in further enhancing reliable and timely communications. \emph{Age of Information} (AoI), as a novel and integrated metric implying the intricate…

Information Theory · Computer Science 2023-04-18 Kunpeng Liu , Aimin Li , Shaohua Wu

Since Shannon's pioneering masterpiece which established the prototype of modern information theory, the goal of communications has long been promising accurate message reconstruction at a refined bit-by-bit level, which deliberately…

Information Theory · Computer Science 2025-10-14 Aimin Li , Shaohua Wu , Siqi Meng , Rongxing Lu , Sumei Sun , Qinyu Zhang

The joint design of control and communication scheduling in a Networked Control System (NCS) is known to be a hard problem. Several research works have successfully designed optimal sampling and/or control strategies under simplified…

Systems and Control · Electrical Eng. & Systems 2024-12-20 Jaya Prakash Champati , Mohammad H. Mamduhi , Karl H. Johansson , James Gross

The Age of Information (AoI) is a performance metric that quantifies the freshness of data in systems where timely updates are critical. Most state-of-the-art methods typically assume that packets enter the monitored system with zero age,…

Information Theory · Computer Science 2025-12-01 Fernando Miguelez , Urtzi Ayesta , Josu Doncel , Maria Dolores Ugarte

With its growing number of deployed devices and applications, the Internet of Things (IoT) raises significant challenges for network maintenance procedures. In this work we address a problem of active fault detection in an IoT scenario,…

Networking and Internet Architecture · Computer Science 2022-02-03 George Stamatakis , Nikolaos Pappas , Alexandros Fragkiadakis , Apostolos Traganitis

The paper deals with Age of Information (AoI) in a network of multiple sources and parallel queues with buffering capabilities, preemption in service and losses in served packets. The queues do not communicate between each other and the…

Performance · Computer Science 2020-12-03 Josu Doncel , Mohamad Assaad

Iterative distributed optimization algorithms involve multiple agents that communicate with each other, over time, in order to minimize/maximize a global objective. In the presence of unreliable communication networks, the…

Optimization and Control · Mathematics 2022-01-28 Adrian Redder , Arunselvan Ramaswamy , Holger Karl

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