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Age of Information (AoI) has been proposed to quantify the freshness of information for emerging real-time applications such as remote monitoring and control in wireless networked control systems (WNCSs). Minimization of the average AoI and…

Information Theory · Computer Science 2024-01-03 Jie Cao , Xu Zhu , Sumei Sun , Ernest Kurniawan , Amnart Boonkajay

Age of information (AoI) is a recently proposed metric that measures the time elapsed since the generation of the last received information update. We consider the problem of AoI minimization for a network under general interference…

Networking and Internet Architecture · Computer Science 2018-05-18 Rajat Talak , Igor Kadota , Sertac Karaman , Eytan Modiano

Low Earth Orbit (LEO) satellite constellations are bringing the Internet of Things (IoT) to the space arena, also known as non-terrestrial networks. Several IoT satellite applications for tracking ships and cargo can be seen as exemplary…

Networking and Internet Architecture · Computer Science 2020-07-13 Federico Chiariotti , Olga Vikhrova , Beatriz Soret , Petar Popovski

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

Characterizing Age of Information (AoI) in status updating systems with general arrival and service processes has great significance considering that the interarrival and service time of updates can possibly be arbitrary in a real world.…

Systems and Control · Electrical Eng. & Systems 2026-01-15 Jixiang Zhang , Han Xu , Daming Cao , Yinfei Xu , Minghao Chen , Chengyu Lin

This paper considers a multi-source real-time updating system in which an energy harvesting (EH)-powered transmitter node has multiple sources generating status updates about several physical processes. The status updates are then sent to a…

Information Theory · Computer Science 2022-01-28 Mohamed A. Abd-Elmagid , Harpreet S. Dhillon

We consider a scenario that utilizes road side units (RSUs) as distributed caches in connected vehicular networks. The goal of the use of caches in our scenario is for rapidly providing contents to connected vehicles under various traffic…

Distributed, Parallel, and Cluster Computing · Computer Science 2022-05-02 Soohyun Park , Soyi Jung , Minseok Choi , Joongheon Kim

The proliferation of smart mobile devices has spurred an explosive growth of mobile crowd-learning services, where service providers rely on the user community to voluntarily collect, report, and share real-time information for a collection…

Social and Information Networks · Computer Science 2019-02-19 Bin Li , Jia Liu

The age of information (AoI) has been extensively studied in recent years. However, few works have focused on the analysis of AoI in large wireless networks. In this work, we analyze this metric to characterize timeliness in a Poisson…

Information Theory · Computer Science 2018-09-11 Yuming Hu , Yi Zhong , Wenyi Zhang

Beyond fifth generation wireless communication networks (B5G) are applied in many use-cases, such as industrial control systems, smart public transport, and power grids. Those applications require innovative techniques for timely…

Information Theory · Computer Science 2024-10-28 Robert-Jeron Reifert , Stefan Roth , Aydin Sezgin

Mobile edge caching (MEC) is a promising technique to improve the quality of service (QoS) for mobile users (MU) by bringing data to the network edge. However, optimizing the crucial QoS aspects of message freshness and service promptness,…

Systems and Control · Electrical Eng. & Systems 2023-08-22 Ran Li , Chuan Huang , Xiaoqi Qin , Lei Yang

Stringent demands for timely information delivery, driven by the widespread adoption of real-time applications and the Internet of Things, have established the age of information (AoI) as a critical metric for quantifying data freshness.…

Networking and Internet Architecture · Computer Science 2025-07-22 Muthukrishnan Senthilkumar , Aresh Dadlani , Hina Tabassum

This paper is motivated by emerging edge computing systems which consist of sensor nodes that acquire and process information and then transmit status updates to an edge receiver for possible further processing. As power is a scarce…

Information Theory · Computer Science 2020-03-31 Parisa Rafiee , Peng Zou , Omur Ozel , Suresh Subramaniam

While age of Information (AoI) has gained importance as a metric characterizing the fresh-ness of information in information-update systems and time-critical applications, most previous studies on AoI have been theoretical. In this chapter,…

Networking and Internet Architecture · Computer Science 2021-06-07 Elif Uysal , Onur Kaya , Sajjad Baghaee , Hasan Burhan Beytur

In this work, we adopt the emerging technology of mobile edge computing (MEC) in the Unmanned aerial vehicles (UAVs) for communication-computing systems, to optimize the age of information (AoI) in the network. We assume that tasks are…

Signal Processing · Electrical Eng. & Systems 2022-06-22 Marjan Tajik , Mohammadreza Maleki , Nader Mokari , Mohammad Reza Javan , Hamid Saeedi , Bile Peng , Eduard A. Jorswieck

Age of Information (AoI) has proven to be a useful metric in networked systems where timely information updates are of importance. In the literature, minimizing "average age" has received considerable attention. However, various…

Information Theory · Computer Science 2020-10-06 Jaya Prakash Champati , Hussein Al-Zubaidy , James Gross

Timely status updates are crucial to enabling applications in massive Internet of Things (IoT). This paper measures the data-freshness performance of a status update system with an energy harvesting transmitter, considering the randomness…

Information Theory · Computer Science 2019-06-04 Xi Zheng , Sheng Zhou , Zhiyuan Jiang , Zhisheng Niu

In the Internet of Vehicles (IoV), Age of Information (AoI) has become a vital performance metric for evaluating the freshness of information in communication systems. Although many studies aim to minimize the average AoI of the system…

Information Theory · Computer Science 2025-06-23 Cui Zhang , Maoxin Ji , Qiong Wu , Pingyi Fan , Qiang Fan

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

The Age-of-Information is an important metric for investigating the timeliness performance in information-update systems. In this paper, we study the AoI minimization problem under a new Pull model with replication schemes, where a user…

Networking and Internet Architecture · Computer Science 2022-05-30 Fengjiao Li , Yu Sang , Zhongdong Liu , Bin Li , Huasen Wu , Bo Ji