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Using environmental sensory data can enhance communications beam training and reduce its overhead compared to conventional methods. However, the availability of fresh sensory data during inference may be limited due to sensing constraints…

Signal Processing · Electrical Eng. & Systems 2025-11-04 Abolfazl Zakeri , Nhan Thanh Nguyen , Ahmed Alkhateeb , Markku Juntti

Vehicles on the road exchange data with base station (BS) frequently through vehicle to infrastructure (V2I) communications to ensure the normal use of vehicular applications, where the IEEE 802.11 distributed coordination function (DCF) is…

Networking and Internet Architecture · Computer Science 2023-03-06 Qiong Wu , Shuai Shi , Ziyang Wan , Qiang Fan , Pingyi Fan , Cui Zhang

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

Age-of-Information (AoI) is a recently introduced metric for network operation with sensor applications which quantifies the freshness of data. In the context of networked control systems (NCSs), we compare the worth of the AoI metric with…

Information Theory · Computer Science 2019-03-14 Onur Ayan , Mikhail Vilgelm , Markus Klügel , Sandra Hirche , Wolfgang Kellerer

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

With the rapid development of intelligent vehicles and Intelligent Transport Systems (ITS), the sensors such as cameras and LiDAR installed on intelligent vehicles provides higher capacity of executing computation-intensive and…

Machine Learning · Computer Science 2024-07-03 Wenhua Wang , Qiong Wu , Pingyi Fan , Nan Cheng , Wen Chen , Jiangzhou Wang , Khaled B. Letaief

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

Age of Information (AoI) has become an important concept in communications, as it allows system designers to measure the freshness of the information available to remote monitoring or control processes. However, its definition tacitly…

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

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

Age of Information (AoI) is a newly appeared concept and metric to characterize the freshness of data. In this work, we study the delay and AoI in a multiple access channel (MAC) with two source nodes transmitting different types of data to…

Information Theory · Computer Science 2019-03-13 Zheng Chen , Nikolaos Pappas , Emil Björnson , Erik G. Larsson

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

The freshness of information in real-time monitoring systems has received increasing attention, with Age of Information (AoI) emerging as a novel metric for measuring information freshness. In many applications, update packets need to be…

Information Theory · Computer Science 2024-04-04 Jianhang Zhu , Jie Gong

In this paper, we address the problem of fair access and Age of Information (AoI) optimization in 5G New Radio (NR) Vehicle to Everything (V2X) Mode 2. Specifically, vehicles need to exchange information with the road side unit (RSU).…

Networking and Internet Architecture · Computer Science 2025-12-02 Xiao Xu , Qiong Wu , Pingyi Fan , Kezhi Wang , Nan Cheng , Wen Chen , Khaled B. Letaief

Many emerging Internet of Things (IoT) applications rely on information collected by sensor nodes where the freshness of information is an important criterion. \textit{Age of Information} (AoI) is a metric that quantifies information…

In communication and computation cooperative networks (3CNs), timely computation is crucial but not always guaranteed. There is a strong demand for a computational task to be completed within a given deadline. The time taken involves both…

Systems and Control · Electrical Eng. & Systems 2025-06-24 Xingran Chen , Yi Zhuang , Kun Yang

Heterogeneous information fusion is one of the most critical issues for realizing vehicular cyber-physical systems (VCPSs). This work makes the first attempt at quantitatively measuring the quality of heterogeneous information fusion in…

Networking and Internet Architecture · Computer Science 2022-11-07 Xincao Xu , Kai Liu , Qisen Zhang , Hao Jiang , Ke Xiao , Jiangtao Luo

Age of Information (AoI) has become an important concept in communications, as it allows system designers to measure the freshness of the information available to remote monitoring or control processes. However, its definition tacitly…

Networking and Internet Architecture · Computer Science 2022-02-02 Federico Chiariotti , Josefine Holm , Anders E. Kalør , Beatriz Soret , Søren K. Jensen , Torben B. Pedersen , Petar Popovski

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

Freshness of status update packets is essential for enabling services where a destination needs the most recent measurements of various sensors. In this paper, we study the information freshness of single-server multi-source queueing models…

Information Theory · Computer Science 2020-04-02 Mohammad Moltafet , Markus Leinonen , Marian Codreanu