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More and more emerging Internet of Things (IoT) applications involve status updates, where various IoT devices monitor certain physical processes and report their latest statuses to the relevant information fusion nodes. A new performance…

Networking and Internet Architecture · Computer Science 2020-04-01 Zixiao Han , Jiaxin Liang , Yifan Gu , He Chen

This paper considers an Industrial Internet of Thing (IIoT) system with a source monitoring a dynamic process with randomly generated status updates. The status updates are sent to an designated destination in a real-time manner over an…

Information Theory · Computer Science 2019-12-17 Qian Wang , He Chen , Yonghui Li , Zhibo Pang , Branka Vucetic

Age of information (AoI) and reliability are two critical metrics to support real-time applications in Industrial Internet of Things (IIoT). These metrics reflect different concepts of timely delivery of sensor information. Monitoring…

Networking and Internet Architecture · Computer Science 2023-11-23 Hossam Farag , Syed Muhammad Ali , Cedomir Stefanovic

We consider a wireless uplink network consisting of multiple end devices and an access point (AP). Each device monitors a physical process with stochastic arrival of status updates and sends these updates to the AP over a shared channel.…

Performance · Computer Science 2022-06-28 Jingwei Liu , Rui Zhang , Aoyu Gong , He Chen

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

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

In a typical Internet of Things (IoT) application where a central controller collects status updates from multiple terminals, e.g., sensors and monitors, through a wireless multiaccess uplink, an important problem is how to attain timely…

Information Theory · Computer Science 2018-01-15 Zhiyuan Jiang , Bhaskar Krishnamachari , Xi Zheng , Sheng Zhou , Zhisheng Niu

The freshness or timeliness of data at server is a significant key performance indicator of sensor networks, especially in tolerance critical applications such as factory automation. As an effective and intuitive measurement to data…

Signal Processing · Electrical Eng. & Systems 2021-11-30 Bin Han , Yao Zhu , Zhiyuan Jiang , Yulin hu , Hans D. Schotten

Unmanned aerial vehicles (UAVs) are expected to be a key component of the next-generation wireless systems. Due to their deployment flexibility, UAVs are being considered as an efficient solution for collecting information data from ground…

Information Theory · Computer Science 2019-08-20 Mohamed A. Abd-Elmagid , Aidin Ferdowsi , Harpreet S. Dhillon , Walid Saad

Timeliness is an emerging requirement for many Internet of Things (IoT) applications. In IoT networks, where a large-number of nodes are distributed, severe interference may incur during the transmission phase which causes age of…

Information Theory · Computer Science 2021-02-24 Xinghua Sun , Fangming Zhao , Howard H. Yang , Wen Zhan , Xijun Wang , Tony Q. S. Quek

The integration of unmanned aerial vehicles (UAVs) with Internet of Things (IoT) networks offers promising solutions for efficient data collection. However, the limited energy capacity of UAVs remains a significant challenge. In this case,…

Networking and Internet Architecture · Computer Science 2025-07-14 Geng Sun , Likun Zhang , Jiahui Li , Jing Wu , Jiacheng Wang , Zemin Sun , Changyuan Zhao , Victor C. M. Leung

As the most well-known application of the Internet of Things (IoT), remote monitoring is now pervasive. In these monitoring applications, information usually has a higher value when it is fresher. A new metric, termed the age of information…

Information Theory · Computer Science 2020-02-25 He Chen , Yifan Gu , Soung-Chang Liew

A new timeliness metric, called Age-of-Information (AoI), has recently attracted a lot of research interests for real-time applications with information updates. It has been extensively studied for various queueing models based on the…

Information Theory · Computer Science 2023-02-17 Zhongdong Liu , Yu Sang , Bin Li , Bo Ji

Age-of-information (AoI) and transmission power are crucial performance metrics in low energy wireless networks, where information freshness is of paramount importance. This study examines a power-limited internet of things (IoT) network…

In delay-sensitive industrial internet of things (IIoT) applications, the age of information (AoI) is employed to characterize the freshness of information. Meanwhile, the emerging network function virtualization provides flexibility and…

Signal Processing · Electrical Eng. & Systems 2021-05-11 Mohammad Akbari , Mohammad Reza Abedi , Roghayeh Joda , Mohsen Pourghasemian , Nader Mokari , Melike Erol-Kantarci

In this paper, we focus on a wireless-powered sensor network coordinated by a multi-antenna access point (AP). Each node can generate sensing information and report the latest information to the AP using the energy harvested from the AP's…

Systems and Control · Electrical Eng. & Systems 2022-12-29 Shimin Gong , Leiyang Cui , Bo Gu , Bin Lyu , Dinh Thai Hoang , Dusit Niyato

This paper considers a cognitive radio-based IoT monitoring system, consisting of an IoT device that aims to update its measurement to a destination using cognitive radio technique. Specifically, the IoT device as a secondary user (SIoT),…

Information Theory · Computer Science 2020-01-09 Qian Wang , He Chen , Yifan Gu , Yonghui Li , Branka Vucetic

The age of information (AoI) is used to measure the freshness of the data. In IoT networks, the traditional resource management schemes rely on a message exchange between the devices and the base station (BS) before communication which…

Machine Learning · Computer Science 2024-01-26 Eslam Eldeeb , Mohammad Shehab , Hirley Alves

Age of Information (AoI) is a key metric to understand data freshness in Internet of Things (IoT) devices. In this paper we analyse an intermittently-powered IoT sensor - with mixed-memory (volatile and non-volatile) architecture - that…

Information Theory · Computer Science 2021-02-03 James Scott Broadhead , Przemysław Pawełczak

Motivated by the need to ensure timely delivery of information (e.g., status updates) in the Internet-of-things (IoT) paradigm, this paper investigates the role of an Unmanned aerial vehicle (UAV) as a mobile relay to minimize the average…

Information Theory · Computer Science 2018-12-24 Mohamed A. Abd-Elmagid , Harpreet S. Dhillon