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The age of information (AoI) has become a central measure of data freshness in modern wireless systems, yet existing surveys either focus on classical AoI formulations or provide broad discussions of reinforcement learning (RL) in wireless…

Machine Learning · Computer Science 2025-12-29 Alimu Alibotaiken , Suyang Wang , Oluwaseun T. Ajayi , Yu Cheng

Timely sampling and fresh information delivery are important in 6G communications. This is achieved by encoding samples into short packets/codewords for transmission, with potential decoding errors. We consider a broadcasting base station…

Information Theory · Computer Science 2023-09-13 Sumanth S Raikar , Rajshekhar V Bhat

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

Mobile edge computing (MEC) is a promising paradigm for real-time applications with intensive computational needs (e.g., autonomous driving), as it can reduce the processing delay. In this work, we focus on the timeliness of…

Machine Learning · Computer Science 2023-12-20 Lyudong Jin , Ming Tang , Meng Zhang , Hao Wang

In the realm of emerging real-time networked applications such as cyber-physical systems (CPS), the Age of Information (AoI) has emerged as a pivotal metric for evaluating timeliness. To meet the high computational demands, such as those in…

Machine Learning · Computer Science 2026-01-05 Lyudong Jin , Ming Tang , Jiayu Pan , Meng Zhang , Hao Wang

This paper investigates the problem of minimizing the age-of-information (AoI) and transmit power consumption in a vehicular network, where a roadside unit (RSU) provides timely updates about a set of physical processes to vehicles. Each…

Networking and Internet Architecture · Computer Science 2022-09-28 Ahmed Al-Habob , Hina Tabassum , Omer Waqar

While the notion of age of information (AoI) has recently emerged as an important concept for analyzing ultra-reliable low-latency communications (URLLC), the majority of the existing works have focused on the average AoI measure. However,…

Networking and Internet Architecture · Computer Science 2019-11-28 Mohamed K. Abdel-Aziz , Chen-Feng Liu , Sumudu Samarakoon , Mehdi Bennis , Walid Saad

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

In most Internet of Things (IoT) networks, edge nodes are commonly used as to relays to cache sensing data generated by IoT sensors as well as provide communication services for data consumers. However, a critical issue of IoT sensing is…

Information Theory · Computer Science 2020-10-26 Xiongwei Wu , Xiuhua Li , Jun Li , P. C. Ching , H. Vincent Poor

Internet of Things (IoT) with its growing number of deployed devices and applications raises significant challenges for network maintenance procedures. In this work, we formulate a problem of autonomous maintenance in IoT networks as a…

Networking and Internet Architecture · Computer Science 2021-01-01 George Stamatakis , Nikolaos Pappas , Alexandros Fragkiadakis , Apostolos Traganitis

Age of Information (AoI) has gained importance as a Key Performance Indicator (KPI) for characterizing the freshness of information in information-update systems and time-critical applications. Recent theoretical research on the topic has…

Networking and Internet Architecture · Computer Science 2019-08-29 Hasan Burhan Beytur , Sajjad Baghaee , Elif Uysal

Age of Information (AoI) is a metric and KPI that has been developed for measuring and controlling data freshness. Optimization of AoI in a real-life network requires adapting the rate and timing of transmissions to varying network…

Networking and Internet Architecture · Computer Science 2025-04-14 Sajjad Baghaee , Elif Uysal

As augmented and virtual reality evolve, achieving seamless synchronization between physical and digital realms remains a critical challenge, especially for real-time applications where delays affect the user experience. This paper presents…

Networking and Internet Architecture · Computer Science 2025-10-30 Elif Ebru Ohri , Qi Liao , Anastasios Giovanidis , Francesca Fossati , Nour-El-Houda Yellas

Age-of-information (AoI) is a newly proposed performance metric of information freshness. It differs from the traditional delay metric, because it is destination centric and measures the time that elapsed since the last received fresh…

Networking and Internet Architecture · Computer Science 2019-01-15 Rajat Talak , Sertac Karaman , Eytan Modiano

In real-time status update services for the Internet of Things (IoT), the timely dissemination of information requiring timely updates is crucial to maintaining its relevance. Failing to keep up with these updates results in outdated…

Networking and Internet Architecture · Computer Science 2024-10-03 Seifu Birhanu Tadele , Binayak Kar , Frezer Guteta Wakgra , Asif Uddin Khan

A large body of applications that involve monitoring, decision making, and forecasting require timely status updates for their efficient operation. Age of Information (AoI) is a newly proposed metric that effectively captures this…

Information Theory · Computer Science 2018-10-09 George Stamatakis , Nikolaos Pappas , Apostolos Traganitis

Age of information (AoI) is an effective performance metric measuring the freshness of information and is popular for applications involving status update. Most of the existing works have adopted average AoI as the metric, which cannot…

Information Theory · Computer Science 2022-06-10 Guan-Yu Lin , Yu-Chih Huang , Yu-Pin Hsu

The emergence of massive ultra-reliable and low latency communications (mURLLC) as a category of time/reliability-sensitive service over 6G networks has received considerable research attention, which has presented unprecedented challenges.…

Systems and Control · Electrical Eng. & Systems 2024-06-10 Jingqing Wang , Wenchi Cheng , Wei Zhang , Hui Liang

With the surge in IoT devices ranging from wearables to smart homes, prompt transmission is crucial. The Age of Information (AoI) emerges as a critical metric in this context, representing the freshness of the information transmitted across…

Computers and Society · Computer Science 2025-05-06 Aymen Hamrouni , Sofie Pollin , Hazem Sallouha

We propose and evaluate age of information (AoI)-aware multiple access mechanisms for the Internet of Things (IoT) in multi-relay two-hop networks. The network considered comprises end devices (EDs) communicating with a set of relays in…

Signal Processing · Electrical Eng. & Systems 2025-03-21 Gabriel Martins de Jesus , Felippe Moraes Pereira , João Luiz Rebelatto , Richard Demo Souza , Onel Alcaraz López