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相关论文: Average AoI in Pinching Antenna-assisted WPCNs wit…

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Timeliness is an emerging requirement for many Internet of Things (IoT) applications. In IoT networks, where a large-number of nodes are distributed, severe interference may incur during the transmission phase which causes age of…

信息论 · 计算机科学 2021-02-24 Xinghua Sun , Fangming Zhao , Howard H. Yang , Wen Zhan , Xijun Wang , Tony Q. S. Quek

In this letter, we deal with the age of information (AoI) for a sensor network with wireless power transfer (WPT) capabilities. Specifically, we study a simple network topology, where a sensor node harvests energy from radio frequency…

信号处理 · 电气工程与系统科学 2018-12-19 Ioannis Krikidis

We investigate the age-of-information (AoI) in the context of random access networks, in which transmitters need to send a sequence of information packets to intended receivers over shared spectrum. We establish an analytical framework that…

信息论 · 计算机科学 2020-09-22 Howard H. Yang , Ahmed Arafa , Tony Q. S. Quek , H. Vincent Poor

This paper considers a cognitive radio-based IoT monitoring system, consisting of an IoT device that aims to update its measurement to a destination using cognitive radio technique. Specifically, the IoT device as a secondary user (SIoT),…

信息论 · 计算机科学 2020-01-09 Qian Wang , He Chen , Yifan Gu , Yonghui Li , Branka Vucetic

In this letter, we investigate a novel pinching antenna (PA)-aided wireless powered communication network (WPCN), in which multiple PAs are activated along a waveguide to establish robust line-of-sight links with multiple devices. Both time…

网络与互联网体系结构 · 计算机科学 2025-10-22 Yixuan Li , Hongbo Xu , Ming Zeng , Yuanwei Liu

Age of information (AoI) is an effective measure to quantify the information freshness in wireless status update systems. It has been further validated that the peak AoI has the potential to capture the core characteristics of the aging…

系统与控制 · 电气工程与系统科学 2024-06-05 Yuquan Xiao , Qinghe Du , George K. Karagiannidis

In this paper, we analyze the peak age of information (PAoI) in UAV-assisted internet of thing (IoT) networks, in which the locations of IoT devices are modeled by a Mat\'{e}rn cluster process (MCP) and UAVs are deployed at the cluster…

系统与控制 · 电气工程与系统科学 2023-10-11 Yujie Qin , Mustafa A. Kishk , Mohamed-Slim Alouini

Age of information (AoI) is gaining attention as a valuable performance metric for many IoT systems, in which a large number of devices report time-stamped updates to a central gateway. This is the case, for instance, of remote sensing,…

网络与互联网体系结构 · 计算机科学 2021-02-16 Andrea Munari

Age of information (AoI), a metric to analyse data freshness, is of interest for time-critical applications in upcoming wireless networks. Besides, wireless power transfer (WPT) is also essential to prolong lifetime of a wireless sensor…

信息论 · 计算机科学 2020-07-15 Yasaman Khorsandmanesh , Mohammad Javad Emadi , Ioannis Krikidis

Age of Information (AoI) has been proposed to quantify the freshness of information for emerging real-time applications such as remote monitoring and control in wireless networked control systems (WNCSs). Minimization of the average AoI and…

信息论 · 计算机科学 2024-01-03 Jie Cao , Xu Zhu , Sumei Sun , Ernest Kurniawan , Amnart Boonkajay

We investigate the age of information (AoI) in a scenario where energy-harvesting devices send status updates to a gateway following the slotted ALOHA protocol and receive no feedback. We let the devices adjust the transmission…

The age of information (AoI) performance metric for point-to-point wireless communication systems is analytically studied under Rician-faded channels and when the receiver is equipped with multiple antennas. The general scenario of a…

信息论 · 计算机科学 2022-01-03 Nikolaos I. Miridakis , Theodoros A. Tsiftsis , Guanghua Yang

Timely status updates are crucial to enabling applications in massive Internet of Things (IoT). This paper measures the data-freshness performance of a status update system with an energy harvesting transmitter, considering the randomness…

信息论 · 计算机科学 2019-06-04 Xi Zheng , Sheng Zhou , Zhiyuan Jiang , Zhisheng Niu

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

Age of information (AoI) is a powerful metric to evaluate the freshness of information, where minimization of average statistics, such as the average AoI and average peak AoI, currently prevails in guiding freshness optimization for related…

信息论 · 计算机科学 2023-11-29 Yuquan Xiao , Qinghe Du

We optimize the Age of Information (AoI) in mobile networks using the age-threshold slotted ALOHA (TSA) protocol. The network comprises multiple source-destination pairs, where each source sends a sequence of status update packets to its…

网络与互联网体系结构 · 计算机科学 2024-06-06 Fangming Zhao , Nikolaos Pappas , Chuan Ma , Xinghua Sun , Tony Q. S. Quek , Howard H. Yang

Age of information (AoI) is a recently proposed metric for measuring information freshness. AoI measures the time that elapsed since the last received update was generated. We consider the problem of minimizing average and peak AoI in a…

信息论 · 计算机科学 2019-12-10 Rajat Talak , Sertac Karaman , Eytan Modiano

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.…

信息论 · 计算机科学 2022-10-21 Lei Wang , Rongfei Fan

The notion of age-of-information (AoI) is investigated in the context of large-scale wireless networks, in which transmitters need to send a sequence of information packets, which are generated as independent Bernoulli processes, to their…

信息论 · 计算机科学 2020-12-24 Howard H. Yang , Chao Xu , Xijun Wang , Daquan Feng , Tony Q. S. Quek

Age of Information (AoI) measures the freshness of data in mission critical Internet-of-Things (IoT) applications i.e., industrial internet, intelligent transportation systems etc. In this paper, a new system model is proposed to estimate…

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