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A sensor observes a random phenomenon and transmits updates about the observed phenomenon to a remote monitor. The sensor may experience intermittent failures in which case the monitor will not receive any updates until the sensor has…

Information Theory · Computer Science 2023-08-30 Ismail Cosandal , Sennur Ulukus

We address the problem of real-time remote tracking of a partially observable Markov source in an energy harvesting system with an unreliable communication channel. We consider both sampling and transmission costs. Different from most prior…

Signal Processing · Electrical Eng. & Systems 2024-10-07 Abolfazl Zakeri , Mohammad Moltafet , Marian Codreanu

Timely information updates are critical to time-sensitive applications in networked monitoring and control systems. In this paper, the problem of real-time status update is considered for a cognitive radio network (CRN), in which the…

Networking and Internet Architecture · Computer Science 2020-01-29 Yao Zhao , Bo Zhou , Walid Saad , Xiliang Luo

The Internet of Things (IoT) connects millions of devices of different cyber-physical systems (CPSs) providing the CPSs additional (implicit) redundancy during runtime. However, the increasing level of dynamicity, heterogeneity, and…

Systems and Control · Computer Science 2019-03-12 Denise Ratasich , Michael Platzer , Radu Grosu , Ezio Bartocci

We study a real-time tracking problem in an energy harvesting status update system with a Markov source and an imperfect channel, considering both sampling and transmission costs. The problem primary challenge stems from the…

Signal Processing · Electrical Eng. & Systems 2023-11-14 Abolfazl Zakeri , Mohammad Moltafet , Marian Codreanu

Age of Information is a newly introduced metric, getting vivid attention for measuring the freshness of information in real-time networks. This parameter has evolved to guarantee the reception of timely information from the latest status…

Performance · Computer Science 2021-01-25 Devarpita Sinha , Rajarshi Roy

Scheduling updates from remote sensors is a key task for the internet of things (IoT). In this context, the mathematical concept of age of information is often used to capture the freshness of received data. This is, in turn, relevant to…

Information Theory · Computer Science 2022-08-31 Andrea Munari , Leonardo Badia

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…

Information Theory · Computer Science 2019-08-14 Xi Zheng , Sheng Zhou , Zhisheng Niu

There is a surge of need for fresh information with the overwhelming proliferation of the Internet of Things (IoT) applications. To characterize the information freshness perceived by the destination, the age of information (AoI) has been…

Information Theory · Computer Science 2026-05-21 Xijun Wang , Shuying Gan , Yanzhi Huang , Xiaoyu Zhao , Chao Xu , Xiang Chen

While the management of heterogeneous network devices is usually solved by protocols like SNMP and NETCONF, there is still no such accepted solution for the management of heterogeneous IoT devices. To avoid the vendor lock-in, several…

Networking and Internet Architecture · Computer Science 2022-03-30 Kristina Sahlmann , Florian Mikolajczak , Bettina Schnor

Timely status updating is crucial for future applications that involve remote monitoring and control, such as autonomous driving and Industrial Internet of Things (IIoT). Age of Information (AoI) has been proposed to measure the freshness…

Information Theory · Computer Science 2020-01-29 Xi Zheng , Sheng Zhou , Zhisheng Niu

This paper studies strategic design in an integrated sensing and communication (ISAC) architecture for status updating of remotely navigating agents. We consider an ISAC-enabled base station that can sense the state of a remote source and…

Information Theory · Computer Science 2026-02-02 Touraj Soleymani , Mohamad Assaad , John S. Baras

The emerging paradigm of Non-Conventional Internet of Things (NC IoT), which is focused on the usefulness of information as opposed to the notion of high volume data collection and transmission, will be an important and dominant part of…

Signal Processing · Electrical Eng. & Systems 2024-05-14 Ananya Hazarika , Mehdi Rahmati

Minimization of the expected value of age of information (AoI) is a risk-neutral approach, and it thus cannot capture rare, yet critical, events with potentially large AoI. In order to capture the effect of these events, in this paper, the…

Information Theory · Computer Science 2020-02-28 Bo Zhou , Walid Saad , Mehdi Bennis , Petar Popovski

With the rapid growth of real-time Internet of Things (IoT) applications, the need for fresh information has surged. Age of Information (AoI) is a tailor-made metric to characterize the information freshness perceived by the devices. In…

Information Theory · Computer Science 2019-03-12 Jingzhou Sun , Zhiyuan Jiang , Sheng Zhou , Zhisheng Niu

With the development of IoT, the sensor usage has been elevated to a new level, and it becomes more crucial to maintain reliable sensor networks. In this paper, we provide how to efficiently and reliably manage the sensor monitoring system…

Systems and Control · Electrical Eng. & Systems 2021-03-15 Jinwoong Kim , Minsu Kim , Jemin Lee

We consider the problem of real-time remote monitoring of a two-state Markov process, where a sensor observes the state of the source and makes a decision on whether to transmit the status updates over an unreliable channel or not. We…

Information Theory · Computer Science 2024-06-24 Mehrdad Salimnejad , Marios Kountouris , Anthony Ephremides , Nikolaos Pappas

We investigate a remote monitoring framework with multiple sensing modalities including IoT sensors on the ground, mobile UAVs in the air, and a periodically available satellite constellation. While the IoT sensors cover small areas and…

Networking and Internet Architecture · Computer Science 2026-02-18 Sunjung Kang , Vishrant Tripathi , Christopher G. Brinton

This paper investigates an Internet of Things (IoT) system in which multiple devices are observing some object's physical parameters and then offloading their observations back to the BS in time with opportunistic channel access.…

Information Theory · Computer Science 2022-10-21 Lei Wang , Rongfei Fan

In this paper, we examine a multi-sensor system where each sensor monitors multiple dynamic information processes and transmits updates over a shared communication channel. These updates may include correlated information across the various…

Information Theory · Computer Science 2025-02-13 Egemen Erbayat , Ali Maatouk , Peng Zou , Suresh Subramaniam