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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

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

We consider the scenario where a sender periodically sends a batch of data to a receiver over a multi-hop network, possibly using multiple paths. Our objective is to minimize peak/average Age-of-Information (AoI) subject to throughput…

Networking and Internet Architecture · Computer Science 2019-05-20 Qingyu Liu , Haibo Zeng , Minghua Chen

Connected and autonomous vehicles (CAVs) rely heavily upon time-sensitive information update services to ensure the safety of people and assets, and satisfactory entertainment applications. Therefore, the freshness of information is a…

Systems and Control · Electrical Eng. & Systems 2024-03-15 Anik Mallik , Dawei Chen , Kyungtae Han , Jiang Xie , Zhu Han

In this paper, a lifelong learning problem is studied for an Internet of Things (IoT) system. In the considered model, each IoT device aims to balance its information freshness and energy consumption tradeoff by controlling its…

Networking and Internet Architecture · Computer Science 2021-03-30 Zhenzhen Gong , Qimei Cui , Christina Chaccour , Bo Zhou , Mingzhe Chen , Walid Saad

In this paper, the problem of minimizing the weighted sum of age of information (AoI) and total energy consumption of Internet of Things (IoT) devices is studied. In the considered model, each IoT device monitors a physical process that…

Information Theory · Computer Science 2021-09-09 Sihua Wang , Mingzhe Chen , Zhaohui Yang , Changchuan Yin , Walid Saad , Shuguang Cui , H. Vincent Poor

The Age of Incorrect Information (AoII) is a metric that can combine the freshness of the information available to a gateway in an Internet of Things (IoT) network with the accuracy of that information. As such, minimizing the AoII can…

Information Theory · Computer Science 2023-01-27 Anupam Nayak , Anders E. Kalør , Federico Chiariotti , Petar Popovski

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

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

We consider multiple unmanned aerial vehicles (UAVs) at a common altitude serving as data collectors to a network of IoT devices. First, using a probabilistic line of sight channel model, the optimal assignment of IoT devices to the UAVs is…

Signal Processing · Electrical Eng. & Systems 2020-04-21 Maryam Shabanighazikelayeh , Erdem Koyuncu

Data collection in massive Internet of Things networks requires novel and flexible methods. Unmanned aerial vehicles (UAVs) are foreseen as a means to collect data rapidly even in remote areas without static telecommunication…

Despite the widespread deployment of terrestrial networks, providing reliable communication services to remote areas and maintaining connectivity during emergencies remains challenging. Low Earth orbit (LEO) satellite constellations offer…

Networking and Internet Architecture · Computer Science 2025-09-17 Zifan Lang , Guixia Liu , Geng Sun , Jiahui Li , Jiacheng Wang , Weijie Yuan , Dusit Niyato , Dong In Kim

Age of Information (AoI) measures the freshness of the information at a remote location. AoI reflects the time that is elapsed since the generation of the packet by a transmitter. In this paper, we consider a remote monitoring problem…

Networking and Internet Architecture · Computer Science 2019-05-14 Anis Elgabli , Hamza Khan , Mounssif Krouka , Mehdi Bennis

This work considers a multi-user massive multiple-input multiple-output (MU-mMIMO) Internet-of-Things (IoT) system, where multiple unmanned aerial vehicles (UAVs) operating as decode-and-forward (DF) relays connect the base station (BS) to…

Information Theory · Computer Science 2024-04-05 Mobeen Mahmood , Yicheng Yuan , Tho Le-Ngoc

The Age of Information (AoI) has recently gained recognition as a critical quality-of-service (QoS) metric for quantifying the freshness of status updates, playing a crucial role in supporting massive ultra-reliable and low-latency…

Systems and Control · Electrical Eng. & Systems 2024-10-17 Jingqing Wang , Wenchi Cheng , Wei Zhang

Age-of-Information (AoI) is a performance metric for scheduling systems that measures the freshness of the data available at the intended destination. AoI is formally defined as the time elapsed since the destination received the recent…

Systems and Control · Electrical Eng. & Systems 2021-01-20 Archiki Prasad , Vishal Jain , Sharayu Moharir

Remote tracking systems play a critical role in applications such as IoT, monitoring, surveillance and healthcare. In such systems, maintaining both real-time state awareness (for online decision making) and accurate reconstruction of…

Systems and Control · Electrical Eng. & Systems 2025-05-20 Sunjung Kang , Vishrant Tripathi , Christopher G. Brinton

Fog computing is an emerging distributed computing model for the Internet of Things (IoT). It extends computing and caching functions to the edge of wireless networks. Uncrewed Aerial Vehicles (UAVs) provide adequate support for fog…

Optimization and Control · Mathematics 2022-11-01 Shuaijun Liu , Jiaying Yin , Zishu Zeng , Jingjin Wu

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

Due to the flexibility and low operational cost, dispatching unmanned aerial vehicles (UAVs) to collect information from distributed sensors is expected to be a promising solution in Internet of Things (IoT), especially for time-critical…

Information Theory · Computer Science 2020-03-03 Mengjie Yi , Xijun Wang , Juan Liu , Yan Zhang , Bo Bai