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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…

信息论 · 计算机科学 2023-02-17 Zhongdong Liu , Yu Sang , Bin Li , Bo Ji

As Cellular Vehicle-to-Everything (C-V2X) evolves towards future sixth-generation (6G) networks, Connected Autonomous Vehicles (CAVs) are emerging to become a key application. Leveraging data-driven Machine Learning (ML), especially Deep…

机器学习 · 计算机科学 2025-09-15 Lei Lei , Kan Zheng , Xuemin , Shen

The proliferation of sixth-generation (6G) networks and the massive Internet of Things (IoT) demand wireless communication technologies that are ultra-low-power, secure, and covert. Noise-based communication has emerged as a transformative…

信号处理 · 电气工程与系统科学 2025-11-07 Higo T. P. Da Silva , Hugerles S. Silva , Felipe A. P. Figueiredo , Andre A. Dos Anjos , Rausley A. A. Souza

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,…

信息论 · 计算机科学 2025-12-01 Fernando Miguelez , Urtzi Ayesta , Josu Doncel , Maria Dolores Ugarte

Emerging cyber-physical systems impel the development of communication protocols that optimize resource utilization. This article investigates infinite-horizon optimal scheduling for resource-aware networked control systems by addressing…

系统与控制 · 电气工程与系统科学 2025-02-11 Siyi Wang , Sandra Hirche

Varying coefficient models are widely used to characterize dynamic associations between longitudinal outcomes and covariates. Existing work on varying coefficient models, however, all assumes that observation times are independent of the…

统计方法学 · 统计学 2026-01-27 Yu Gu , Yangjianchen Xu , Peijun Sang

In this paper, we investigate a model relevant to semantics-aware goal-oriented communications, and we propose a new metric that incorporates the utilization of information in addition to its timelines. Specifically, we consider the…

信息论 · 计算机科学 2023-12-22 Ali Nikkhah , Anthony Ephremides , Nikolaos Pappas

Variational autoencoder-based voice conversion (VAE-VC) has the advantage of requiring only pairs of speeches and speaker labels for training. Unlike the majority of the research in VAE-VC which focuses on utilizing auxiliary losses or…

声音 · 计算机科学 2021-12-07 Kei Akuzawa , Kotaro Onishi , Keisuke Takiguchi , Kohki Mametani , Koichiro Mori

In this paper, we propose two new performance metrics, coined the Version Innovation Age (VIA) and the Age of Incorrect Version (AoIV) for real-time monitoring of a two-state Markov process over an unreliable channel. We analyze their…

信息论 · 计算机科学 2024-02-01 Mehrdad Salimnejad , Marios Kountouris , Anthony Ephremides , Nikolaos Pappas

This work studies the average age of information (AoI) of a monitoring system in which two sensors are sensing the same physical process and update status to a common monitor using their dedicated channels. Generally, using redundant…

网络与互联网体系结构 · 计算机科学 2022-06-14 Tianqing Yang , Zhengchuan Chen , Howard H. Yang , Min Wang , Yunjian Jia , Tony Q. S. Quek

A new framework for asset price dynamics is introduced in which the concept of noisy information about future cash flows is used to derive the price processes. In this framework an asset is defined by its cash-flow structure. Each cash flow…

证券定价 · 定量金融 2013-01-31 Dorje C. Brody , Lane P. Hughston , Andrea Macrina

Age of Information (AoI) is a key metric used for evaluating data freshness in communication networks, particularly in systems requiring real-time updates. In positioning applications, maintaining low AoI is critical for ensuring timely and…

信号处理 · 电气工程与系统科学 2026-03-30 Wasif J. Hussain , Don-Roberts Emenonye , R. Michael Buehrer , Harpreet S. Dhillon

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…

信息论 · 计算机科学 2025-12-19 Yutao Chen , Anthony Ephremides

This paper characterizes the fundamental trade-off between throughput and Age of Information (AoI) in wireless networks where multiple devices transmit status updates to a central base station over unreliable channels. To address the…

系统与控制 · 电气工程与系统科学 2025-09-09 Lin Wang , I-Hong Hou

The Age of Information (AoI) is an end-to-end metric frequently used to understand how "fresh" the information about a remote system is. In this paper, we present an experimental study of the relationship between AoI and the energy spent by…

网络与互联网体系结构 · 计算机科学 2024-05-10 Federico Cristofani , Valerio Luconi , Alessio Vecchio

In this article, we provide an accessible introduction to the emerging idea of Age of Information (AoI) that quantifies freshness of information and explore its possible role in the efficient design of freshness-aware Internet of Things…

信息论 · 计算机科学 2019-12-10 Mohamed A. Abd-Elmagid , Nikolaos Pappas , Harpreet S. Dhillon

Modern IoT and sensor networks generate vast amounts of data, posing significant challenges for storage, transmission, and real-time processing. Traditional approaches, such as compressive sensing and machine learning-based compression,…

信息论 · 计算机科学 2026-05-12 Hrishikesh Dutta , Roberto Minerva , Reza Farahbakhsh , Noel Crespi

As an emerging metric of communication systems, Age of Information (AoI) has been derived to have a critical impact in networked control systems with unreliable information links. This work sets up a novel model of outage probability in a…

信息论 · 计算机科学 2021-11-30 Bin Han , Siyu Yuan , Zhiyuan Jiang , Yao Zhu , Hans D. Schotten

This work introduces a learning-enhanced observer (LEO) for linear time-invariant systems with uncertain dynamics. Rather than relying solely on nominal models, the proposed framework treats the system matrices as optimizable variables and…

机器学习 · 计算机科学 2025-11-21 Hao Shu

As an extension of variational autoencoder (VAE), complex VAE uses complex Gaussian distributions to model latent variables and data. This work proposes a complex recurrent VAE framework, specifically in which complex-valued recurrent…

音频与语音处理 · 电气工程与系统科学 2024-10-28 Yuying Xie , Thomas Arildsen , Zheng-Hua Tan