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Age-of-information (AoI) is a novel metric that measures the freshness of information in status update scenarios. It is essential for real-time applications to transmit status update packets to the destination node as timely as possible.…

Distributed, Parallel, and Cluster Computing · Computer Science 2019-01-15 Qiaobin Kuang , Jie Gong , Xiang Chen , Xiao Ma

Age of Information (AoI) is emerging as a novel metric for measuring information freshness in real-time monitoring systems. For computation-intensive status data, the information is not revealed until being processed. We consider a status…

Information Theory · Computer Science 2025-08-21 Jianhang Zhu , Jie Gong

In status update scenarios, the freshness of information is measured in terms of age-of-information (AoI), which essentially reflects the timeliness for real-time applications to transmit status update messages to a remote controller. For…

Information Theory · Computer Science 2020-02-19 Qiaobin Kuang , Jie Gong , Xiang Chen , Xiao Ma

In this paper, we analyze the average age of information (AoI) and the average peak AoI (PAoI) of a multiuser mobile edge computing (MEC) system where a base station (BS) generates and transmits computation-intensive packets to user…

Information Theory · Computer Science 2022-11-03 Zhifeng Tang , Zhuo Sun , Nan Yang , Xiangyun Zhou

Age of Information (AoI), defined as the time elapsed since the generation of the latest received update, is a promising performance metric to measure data freshness for real-time status monitoring. In many applications, status information…

Information Theory · Computer Science 2020-02-25 Jie Gong , Qiaobin Kuang , Xiang Chen

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

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

Edge computing applications typically require generated data to be preprocessed at the source and then transmitted to an edge server. In such cases, transmission time and preprocessing time are coupled, yielding a tradeoff between them to…

Information Theory · Computer Science 2019-12-06 Peng Zou , Omur Ozel , Suresh Subramaniam

Age of Information (AoI) is a critical metric for several Internet of Things (IoT) applications, where sensors keep track of the environment by sending updates that need to be as fresh as possible. The development of edge computing…

Networking and Internet Architecture · Computer Science 2021-01-20 Federico Chiariotti , Olga Vikhrova , Beatriz Soret , Petar Popovski

Mobile Edge Computing (MEC) is expected to play a significant role in the development of 6G networks, as new applications such as cooperative driving and eXtended Reality (XR) require both communication and computational resources from the…

Networking and Internet Architecture · Computer Science 2023-07-06 Federico Chiariotti

Age of information (AoI), a notion that measures the information freshness, is an essential performance measure for time-critical applications in Internet of Things (IoT). With the surge of computing resources at the IoT devices, it is…

Information Theory · Computer Science 2021-08-10 Xijun Wang , Minghao Fang , Chao Xu , Howard H. Yang , Xinghua Sun , Xiang Chen , Tony Q. S. Quek

The study of optimal preemption policies for status update systems has been a recurring topic in the age of information (AoI) literature, where threshold-based structures have been shown to be optimal under a generate-at-will update…

Information Theory · Computer Science 2026-05-18 Sahan Liyanaarachchi , Sennur Ulukus , Nail Akar

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

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

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

The age of information (AoI) performance analysis is essential for evaluating the information freshness in the large-scale mobile edge computing (MEC) networks. This work proposes the earliest analysis of the mean AoI (MAoI) performance of…

Systems and Control · Electrical Eng. & Systems 2024-09-25 Ying Dong , Hang Xiao , Haonan Hu , Jiliang Zhang , Qianbin Chen , Jie Zhang

Exploiting the computational heterogeneity of mobile devices and edge nodes, mobile edge computation (MEC) provides an efficient approach to achieving real-time applications that are sensitive to information freshness, by offloading tasks…

Artificial Intelligence · Computer Science 2023-07-06 Shuo Chen , Ning Yang , Meng Zhang , Jun Wang

Mobile Edge Computing (MEC) leverages computational heterogeneity between mobile devices and edge nodes to enable real-time applications requiring high information freshness. The Age-of-Information (AoI) metric serves as a crucial evaluator…

Systems and Control · Electrical Eng. & Systems 2025-08-29 Ning Yang , Yibo Liu , Shuo Chen , Meng Zhang , Haijun Zhang

The freshness of status updates is imperative in mission-critical Internet of things (IoT) applications. Recently, Age of Information (AoI) has been proposed to measure the freshness of updates at the receiver. However, AoI only…

Information Theory · Computer Science 2020-03-03 Wenrui Lin , Xijun Wang , Chao Xu , Xinghua Sun , Xiang Chen

In this paper, we consider a point-to-point wireless communication system. The source monitors a physical process and generates status update packets according to a Poisson process. The packets are transmitted to the destination by using…

Signal Processing · Electrical Eng. & Systems 2019-08-20 Rui Wang , Yifan Gu , He Chen , Yonghui Li , Branka Vucetic
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