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相关论文: Risk-Aware Optimization of Age of Information in t…

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In this study, we investigate the optimal transmission policies within an energy harvesting status update system, where the demand for status updates depends on the state of the source. The system monitors a two-state Markovian source that…

信息论 · 计算机科学 2024-05-07 Erfan Delfani , George J. Stamatakis , Nikolaos Pappas

This work is motivated by the need of collecting fresh data from power-constrained sensors in the industrial Internet of Things (IIoT) network. A recently proposed metric, the Age of Information (AoI) is adopted to measure data freshness…

信息论 · 计算机科学 2020-03-12 Haoyue Tang , Jintao Wang , Linqi Song , Jian Song

In many sequential decision-making problems we may want to manage risk by minimizing some measure of variability in costs in addition to minimizing a standard criterion. Conditional value-at-risk (CVaR) is a relatively new risk measure that…

人工智能 · 计算机科学 2014-07-14 Yinlam Chow , Mohammad Ghavamzadeh

Effective control of time-sensitive industrial applications depends on the real-time transmission of data from underlying sensors. Quantifying the data freshness through age of information (AoI), in this paper, we jointly design sampling…

信息论 · 计算机科学 2023-12-19 Yali Cao , Yinglei Teng , Mei Song , Nan Wang

Age-of-Information (AoI), or simply age, which measures the data freshness, is essential for real-time Internet-of-Things (IoT) applications. On the other hand, energy saving is urgently required by many energy-constrained IoT devices. This…

信息论 · 计算机科学 2021-08-16 Jie Gong , Jianhang Zhu , Xiang Chen , Xiao Ma

Emerging applications in Internet of Things (IoT), such as remote monitoring and control, extensively rely on timely status updates. Age of Information (AoI) has been proposed to characterize the freshness of information in status update…

信息论 · 计算机科学 2019-08-14 Xi Zheng , Sheng Zhou , Zhisheng Niu

Popular methods to quantify transmitted data quality are the Age of Information (AoI), the Query Age of Information (QAoI), and the Age of Incorrect Information (AoII). We consider these metrics in a point-to-point wireless communication…

信息论 · 计算机科学 2025-03-18 Wanja de Sombre , Andrea Ortiz , Frank Aurzada , Anja Klein

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…

信息论 · 计算机科学 2018-01-15 Zhiyuan Jiang , Bhaskar Krishnamachari , Xi Zheng , Sheng Zhou , Zhisheng Niu

Caching has been regarded as a promising technique to alleviate energy consumption of sensors in Internet of Things (IoT) networks by responding to users' requests with the data packets stored in the edge caching node (ECN). For real-time…

信息论 · 计算机科学 2020-03-03 Chao Xu , Xijun Wang , Howard H. Yang , Hongguang Sun , Tony Q. S. Quek

Age of Information (AoI) has been recognized as an important metric to measure the freshness of information. Central to this consensus is that minimizing AoI can enhance the freshness of information, thereby facilitating the accuracy of…

信息论 · 计算机科学 2024-08-09 Aimin Li , Shaohua Wu , Gary C. F. Lee , Xiaomeng Cheng , Sumei Sun

The popularity of Conditional Value-at-Risk (CVaR), a risk functional from finance, has been growing in the control systems community due to its intuitive interpretation and axiomatic foundation. We consider a nonstandard optimal control…

系统与控制 · 电气工程与系统科学 2022-06-22 Margaret P. Chapman , Michael Fauss , Kevin M. Smith

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…

信息论 · 计算机科学 2021-08-10 Xijun Wang , Minghao Fang , Chao Xu , Howard H. Yang , Xinghua Sun , Xiang Chen , Tony Q. S. Quek

We consider a transmitter-receiver pair in a slotted-time system. The transmitter observes a dynamic source and sends updates to a remote receiver through an error-free communication channel that suffers a random delay. We consider two…

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

In this paper, we study age of information (AoI) optimization for status updating in an integrated sensing and communication (ISAC) system. We consider a discrete-time architecture in which a base station interacts with a physical…

信息论 · 计算机科学 2026-05-26 Marco Zanni , Mohamad Assaad , Touraj Soleymani

Value-at-risk (VaR), also known as quantile, is a crucial risk measure in finance and other fields. However, optimizing VaR metrics in Markov decision processes (MDPs) is challenging because VaR is non-additive and the traditional dynamic…

最优化与控制 · 数学 2025-07-31 Li Xia , Jinyan Pan

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…

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…

信息论 · 计算机科学 2025-04-15 Ismail Cosandal , Sennur Ulukus , Nail Akar

In Internet of Things (IoTs), the freshness of system status information is crucial for real-time monitoring and decision-making. This paper studies the transmission scheduling problem in wireless monitoring systems, where information…

网络与互联网体系结构 · 计算机科学 2026-03-09 Yuchong Zhang , Yi Cao , Xianghui Cao

The Age of Incorrect Information (AoII) is a recently proposed metric for real-time remote monitoring systems. In particular, AoII measures the time the information at the monitor is incorrect, weighted by the magnitude of this…

In Internet of Things (IoT) status update systems, where information is sampled and subsequently transmitted from a source to a destination node, the imperative necessity lies in maintaining the timeliness of information and updating the…

信息论 · 计算机科学 2024-06-04 Erfan Delfani , Nikolaos Pappas