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In this paper, we consider the fair access problem and the Age of Information (AoI) under 5G New Radio (NR) Vehicle-to-Infrastructure (V2I) Mode 2 in vehicular networks. Specifically, vehicles follow Mode 2 to communicate with Roadside…

Networking and Internet Architecture · Computer Science 2025-07-25 Xiao Xu , Qiong Wu , Pingyi Fan , Kezhi Wang , Nan Cheng , Wen Chen , Khaled B. Letaief

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

Reinforcement learning (RL) has proven highly effective in addressing complex decision-making and control tasks. However, in most traditional RL algorithms, the policy is typically parameterized as a diagonal Gaussian distribution with…

Machine Learning · Computer Science 2024-12-24 Yinuo Wang , Likun Wang , Yuxuan Jiang , Wenjun Zou , Tong Liu , Xujie Song , Wenxuan Wang , Liming Xiao , Jiang Wu , Jingliang Duan , Shengbo Eben Li

Deep reinforcement learning offers a model-free alternative to supervised deep learning and classical optimization for solving the transmit power control problem in wireless networks. The multi-agent deep reinforcement learning approach…

Signal Processing · Electrical Eng. & Systems 2020-09-16 Yasar Sinan Nasir , Dongning Guo

Age of Incorrect Information (AoII) is a newly introduced performance metric that considers communication goals. Therefore, comparing with traditional performance metrics and the recently introduced metric - Age of Information (AoI), AoII…

Information Theory · Computer Science 2025-12-19 Yutao Chen , Anthony Ephremides

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

Deep reinforcement learning (DRL) has long been a promising solution for sequential resource management in wireless networks. However, conventional DRL methods are fundamentally limited by their reliance on unimodal policy distributions,…

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

Using multiple sensors to update the status process of interest is promising in improving the information freshness. The unordered arrival of status updates at the monitor end poses a significant challenge in analyzing the timeliness…

Information Theory · Computer Science 2024-12-12 Zhengchuan Chen , Yi Qu , Nikolaos Pappas , Chaowei Tang , Min Wang , Tony Q. S. Quek

The timeliness of status message delivery in communications networks is subjective to time-varying wireless channel transmissions. In this paper, we investigate the age of information (AoI) of each source in a multi-source M/G/1 queueing…

Networking and Internet Architecture · Computer Science 2022-11-02 Muthukrishnan Senthil Kumar , Aresh Dadlani , Masoumeh Moradian , Ahmad Khonsari , Theodoros A. Tsiftsis

Modern sensing and monitoring applications typically consist of sources transmitting updates of different sizes, ranging from a few bytes (position, temperature, etc.) to multiple megabytes (images, video frames, LIDAR point scans, etc.).…

Systems and Control · Electrical Eng. & Systems 2025-12-09 Zhuoyi Zhao , Vishrant Tripathi , Igor Kadota

We analytically decide whether the broadcast transmission scheme or the unicast transmission scheme achieves the optimal age of information (AoI) performance of a multiuser system where a base station (BS) generates and transmits status…

Information Theory · Computer Science 2023-07-11 Zhifeng Tang , Nan Yang , Parastoo Sadeghi , Xiangyun Zhou

This work introduces a framework for analyzing the Age of Incorrect Information (AoII) in a real-time monitoring system with a generic discrete-time Markov source. We study a noisy communication system employing a hybrid automatic repeat…

Information Theory · Computer Science 2026-03-31 Konstantinos Bountrogiannis , Anthony Ephremides , Panagiotis Tsakalides , George Tzagkarakis

We consider the multicast transmission of a real-time Internet of Things (IoT) system, where a server transmits time-stamped status updates to multiple IoT devices. We apply a recently proposed metric, named age of information (AoI), to…

Information Theory · Computer Science 2020-02-07 Jie Li , Yong Zhou , He Chen

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 rapid advancement of Artificial Intelligence (AI) has introduced Deep Neural Network (DNN)-based tasks to the ecosystem of vehicular networks. These tasks are often computation-intensive, requiring substantial computation resources,…

Machine Learning · Computer Science 2024-06-12 Zhang Liu , Hongyang Du , Junzhe Lin , Zhibin Gao , Lianfen Huang , Seyyedali Hosseinalipour , Dusit Niyato

The age of incorrect information (AoII) process which keeps track of the time since the source and monitor processes are in sync, has been extensively used in remote estimation problems. In this paper, we consider a push-based remote…

Information Theory · Computer Science 2025-04-15 Ismail Cosandal , Sennur Ulukus , Nail Akar

In this work, we study age-optimal scheduling with stability constraints in a multiple access channel with two heterogeneous source nodes transmitting to a common destination. The first node is connected to a power grid and it has randomly…

Information Theory · Computer Science 2021-02-26 Zheng Chen , Nikolaos Pappas , Emil Björnson , Erik G. Larsson

This paper considers a cooperative status update system with a source aiming to send randomly generated status updates to a designated destination as timely as possible with the help of a relay. We adopt a recently proposed concept, Age of…

Information Theory · Computer Science 2020-01-14 Bohai Li , He Chen , Yong Zhou , Yonghui Li

We examine multiple independent sources providing status updates to a monitor through simple queues. We formulate an Age of Information (AoI) timeliness metric and derive a general result for the AoI that is applicable to a wide variety of…

Information Theory · Computer Science 2017-12-13 Roy D. Yates , Sanjit K. Kaul