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Traditional global positioning systems often underperform indoors, whereas Wi-Fi has become an effective medium for various radio sensing services. Specifically, utilizing channel state information (CSI) from Wi-Fi networks provides a…

信号处理 · 电气工程与系统科学 2024-12-04 Pei Tang , Jingtao Guo , Ivan Wang-Hei Ho

Human activity recognition (HAR) in ubiquitous computing has been beginning to incorporate attention into the context of deep neural networks (DNNs), in which the rich sensing data from multimodal sensors such as accelerometer and gyroscope…

计算机视觉与模式识别 · 计算机科学 2021-07-22 Wenbin Gao , Lei Zhang , Qi Teng , Jun He , Hao Wu

This study presents a parameter-light, low-complexity artificial intelligence/machine learning (AI/ML) model that enhances channel state information (CSI) feedback in wireless systems by jointly exploiting temporal, spatial, and frequency…

信号处理 · 电气工程与系统科学 2025-05-08 Aakash Saini , Yunchou Xing , Jee Hyun Kim , Amir Ahmadian Tehrani , Wolfgang Gerstacker

Recent advances in Wi-Fi sensing have ushered in a plethora of pervasive applications in home surveillance, remote healthcare, road safety, and home entertainment, among others. Most of the existing works are limited to the activity…

网络与互联网体系结构 · 计算机科学 2023-09-11 Khandaker Foysal Haque , Milin Zhang , Francesco Restuccia

Action detection is an essential and challenging task, especially for densely labelled datasets of untrimmed videos. The temporal relation is complex in those datasets, including challenges like composite action, and co-occurring action.…

计算机视觉与模式识别 · 计算机科学 2022-03-30 Rui Dai , Srijan Das , Kumara Kahatapitiya , Michael S. Ryoo , Francois Bremond

WiFi sensing is an emerging technology that utilizes wireless signals for various sensing applications. However, the reliance on supervised learning, the scarcity of labelled data, and the incomprehensible channel state information (CSI)…

信号处理 · 电气工程与系统科学 2024-10-04 B. Barahimi , H. Tabassum , M. Omer , O. Waqar

Temporal action detection aims at not only recognizing action category but also detecting start time and end time for each action instance in an untrimmed video. The key challenge of this task is to accurately classify the action and…

计算机视觉与模式识别 · 计算机科学 2018-10-22 Wen Wang , Yongjian Wu , Haijun Liu , Shiguang Wang , Jian Cheng

Identity authentication is crucial for ensuring the information security of wireless communication. Radio frequency (RF) fingerprinting techniques provide a prom-ising supplement to cryptography-based authentication approaches but rely on…

密码学与安全 · 计算机科学 2024-08-14 Junjie Wang , Yong Huang , Feiyang Zhao , Wenjing Wang , Dalong Zhang , Wei Wang

Increased connectivity and remote reprogrammability/reconfigurability features of embedded devices in current-day power systems (including interconnections between information technology -- IT -- and operational technology -- OT --…

系统与控制 · 电气工程与系统科学 2024-06-19 Prashanth Krishnamurthy , Ali Rasteh , Ramesh Karri , Farshad Khorrami

Most recent studies on detecting and localizing temporal anomalies have mainly employed deep neural networks to learn the normal patterns of temporal data in an unsupervised manner. Unlike them, the goal of our work is to fully utilize…

计算机视觉与模式识别 · 计算机科学 2021-08-17 Dongha Lee , Sehun Yu , Hyunjun Ju , Hwanjo Yu

Wireless Sensor Networks (WSNs) consist of many low cost and light sensors dispersed in an area to monitor the physical environment. Event detection in WSN area, especially detection of multi-events at the same time, is an important…

系统与控制 · 计算机科学 2016-10-14 Mina Moradi Kordmahalleh , Mohammad Gorji Sefidmazgi , Jafar Ghaisari , Javad Askari

Detection of nocturnal seizures in epilepsy patients is essential, both for the quick management of the seizure complications, and for the assessment of the ongoing seizure treatment. Traditional seizure detection products (e.g.,…

信号处理 · 电气工程与系统科学 2021-07-29 Belal Korany , Yasamin Mostofi

Taking advantage of the rich information provided by Wi-Fi measurement setups, Wi-Fi-based human behavior sensing leveraging Channel State Information (CSI) measurements has received a lot of research attention in recent years. The…

人机交互 · 计算机科学 2021-08-03 Lingchao Guo , Zhaoming Lu , Xiangming Wen , Liming Wang , David Gesbert , Zijun Han

Human Action Recognition using WiFi Channel State Information (CSI) has emerged as an attractive alternative to vision-based methods due to its ubiquity, device-agnostic nature, and inherent privacy-preserving capabilities. However, the…

信号处理 · 电气工程与系统科学 2025-12-05 Gang Liu , Yanling Hao , Yixuan Zou

Intelligent reflecting surface (IRS) has drawn a lot of attention recently as a promising new solution to achieve high spectral and energy efficiency for future wireless networks. By utilizing massive low-cost passive reflecting elements,…

信息论 · 计算机科学 2022-10-17 Ming-Min Zhao , Qingqing Wu , Min-Jian Zhao , Rui Zhang

Human Activity Recognition (HAR) has recently received remarkable attention in numerous applications such as assisted living and remote monitoring. Existing solutions based on sensors and vision technologies have obtained achievements but…

计算机视觉与模式识别 · 计算机科学 2022-05-25 Yanling Hao , Zhiyuan Shi , Yuanwei Liu

Energy Efficiency of a wireless sensor network (WSN) relies on its main characteristics, including hop-number, user's location, allocated power, and relay. Identifying nodes, which have more impact on these characteristics, is, however,…

网络与互联网体系结构 · 计算机科学 2023-05-02 Behnam Ojaghi , Mohammad Mahdi Dehshibi

Device-free human presence detection is a crucial technology for various applications, including home automation, security, and healthcare. While camera-based systems have traditionally been used for this purpose, they raise privacy…

人工智能 · 计算机科学 2023-12-13 Li-Hsiang Shen , An-Hung Hsiao , Fang-Yu Chu , Kai-Ten Feng

Breathing signal monitoring can provide important clues for human's physical health problems. Comparing to existing techniques that require wearable devices and special equipment, a more desirable approach is to provide contact-free and…

计算工程、金融与科学 · 计算机科学 2017-02-08 Xuyu Wang , Chao Yang , Shiwen Mao

In this paper we focus on the problem of human activity recognition without identification of the individuals in a scene. We consider using Wi-Fi signals to detect certain human mobility behaviors such as stationary, walking, or running.…

网络与互联网体系结构 · 计算机科学 2018-08-06 Fang-Jing Wu , Gürkan Solmaz