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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

Security provisioning for low-complex and constrained devices in the Internet of Things (IoT) is exacerbating the concerns for the design of future wireless networks. To unveil the full potential of the sixth generation (6G), it is becoming…

Signal Processing · Electrical Eng. & Systems 2023-09-12 Xavier Alejandro Flores Cabezas , Diana Pamela Moya Osorio

In recent years, unmanned aerial vehicles (UAVs) have found numerous sensing applications, which are expected to add billions of dollars to the world economy in the next decade. To further improve the Quality-of-Service (QoS) in such…

Systems and Control · Electrical Eng. & Systems 2020-03-13 Fanyi Wu , Hongliang Zhang , Jianjun Wu , Lingyang Song , Zhu Han , H. Vincent Poor

Age-of-information (AoI) and transmission power are crucial performance metrics in low energy wireless networks, where information freshness is of paramount importance. This study examines a power-limited internet of things (IoT) network…

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…

Information Theory · Computer Science 2018-01-15 Zhiyuan Jiang , Bhaskar Krishnamachari , Xi Zheng , Sheng Zhou , Zhisheng Niu

Age of information (AoI) measures information freshness at the receiver. AoI may provide insights into quality of service in communication systems. For this reason, it has been used as a cross-layer metric for wireless communication…

Systems and Control · Electrical Eng. & Systems 2020-05-06 Onur Ayan , H. Murat Gürsu , Sandra Hirche , Wolfgang Kellerer

Future Internet-of-Things (IoT) has high demand for energy-saving communications, especially in remote areas and smart cities. To meet this demand, we propose novel Unmanned Aerial Vehicle-assisted backscatter communications, where a UAV…

Signal Processing · Electrical Eng. & Systems 2019-08-06 Shengzhi Yang , Yansha Deng , Xuanxuan Tang , Yuan Ding , Jianming Zhou

This paper considers an uplink Internet of Things system with synchronous periodic traffic, where multiple devices generate their status updates at the beginning of each global frame and attempt to send them to a common access point. To…

Information Theory · Computer Science 2023-07-07 Yuqing Zhu , Yiwen Zhu , Aoyu Gong , Yan Lin , Yijin Zhang

This work considers unmanned aerial vehicle (UAV) networks for collecting data covertly from ground users. The full-duplex UAV intends to gather critical information from a scheduled user (SU) through wireless communication and generate…

Signal Processing · Electrical Eng. & Systems 2019-06-21 Xiaobo Zhou , Shihao Yan , Feng Shu , Riqing Chen , Jun Li

Data collected and transmitted by Internet of things (IoT) devices are typically used for control and monitoring purposes; and hence, their timely delivery is of utmost importance for the underlying applications. However, IoT devices…

Information Theory · Computer Science 2020-04-24 Elvina Gindullina , Leonardo Badia , Deniz Gündüz

The ground fixed base stations (BSs) are often deployed inflexibly, and have high overheads, as well as are susceptible to the damage from natural disasters, making it impractical for them to continuously collect data from sensor devices.…

Information Theory · Computer Science 2024-03-21 Lingling Liu , Aimin Wang , Geng Sun , Jiahui Li , Hongyang Pan , Tony Q. S. Quek

With the continued growth of its core technologies, including the Internet of Things (IoT), artificial intelligence (AI), Big Data and data analytics, and edge computing, digital twin (DT) technology has witnessed a significant increase in…

Emerging Technologies · Computer Science 2025-04-23 Ghofran Khalaf , May Itani , Sanaa Sharafeddine

Thanks to the advantages of flexible deployment and high mobility, unmanned aerial vehicles (UAVs) have been widely applied in the areas of disaster management, agricultural plant protection, environment monitoring and so on. With the…

Robotics · Computer Science 2022-11-18 Zhiqing Wei , Mingyue Zhu , Ning Zhang , Lin Wang , Yingying Zou , Zeyang Meng , Huici Wu , Zhiyong Feng

In this paper, a novel joint energy and age of information (AoI) optimization framework for IoT devices in a non-stationary environment is presented. In particular, IoT devices that are distributed in the real-world are required to…

Networking and Internet Architecture · Computer Science 2023-12-04 Zhenzhen Gong , Omar Hashash , Yingze Wang , Qimei Cui , Wei Ni , Walid Saad , Kei Sakaguchi

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

This paper proposes an intelligent technique for maximizing the network connectivity and provisioning desired quality of service (QoS) of integration of internet of things (IoT) and unmanned aerial vehicle (UAV). Prediction of the signal…

Signal Processing · Electrical Eng. & Systems 2018-05-22 S. H. Alsamhi , Ou Ma , M. S. Ansari

Unmanned aerial vehicles (UAVs) are expected to be an integral part of wireless networks, and determining collision-free trajectory in multi-UAV non-cooperative scenarios while collecting data from distributed Internet of Things (IoT) nodes…

Signal Processing · Electrical Eng. & Systems 2023-12-12 Xueyuan Wang , M. Cenk Gursoy , Tugba Erpek , Yalin E. Sagduyu

Over-the-air computation (AirComp) provides a promising way to support ultrafast aggregation of distributed data. However, its performance cannot be guaranteed in long-distance transmission due to the distortion induced by the channel…

Signal Processing · Electrical Eng. & Systems 2021-01-26 Min Fu , Yong Zhou , Yuanming Shi , Ting Wang , Wei Chen

Motivated by the critical need for unmanned aerial vehicles (UAVs) to patrol grid systems in hazardous and dynamically changing environments, this study addresses a routing problem aimed at minimizing the time-average Age of Information…

Information Theory · Computer Science 2024-12-20 Weiqi Wang , Jin Xu

Age of information (AoI) is a performance metric that captures the freshness of status updates. While AoI has been studied thoroughly for point-to-point links, the impact of modern random-access protocols on this metric is still unclear. In…

Information Theory · Computer Science 2021-12-03 Khac-Hoang Ngo , Giuseppe Durisi , Alexandre Graell i Amat