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Wi-Fi sensing offers a promising technique for contactless human respiration monitoring. A key challenge, however, is the blind spot problem caused by random phase offsets that corrupt the complementarity of respiratory signals. To address…

Signal Processing · Electrical Eng. & Systems 2025-07-25 Guangteng Liu , Xiayue Liu , Zhixiang Xu , Yufeng Yuan , Hui Zhao , Yuxuan Liu , Yufei Jiang

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…

Computational Engineering, Finance, and Science · Computer Science 2017-02-08 Xuyu Wang , Chao Yang , Shiwen Mao

Deep neural networks for classification are vulnerable to adversarial attacks, where small perturbations to input samples lead to incorrect predictions. This susceptibility, combined with the black-box nature of such networks, limits their…

Cryptography and Security · Computer Science 2024-08-28 Dipkamal Bhusal , Md Tanvirul Alam , Monish K. Veerabhadran , Michael Clifford , Sara Rampazzi , Nidhi Rastogi

Sensors (e.g., light, gyroscope, accelerometer) and sensing-enabled applications on a smart device make the applications more user-friendly and efficient. However, the current permission-based sensor management systems of smart devices only…

Cryptography and Security · Computer Science 2019-10-25 Amit Kumar Sikder , Hidayet Aksu , A. Selcuk Uluagac

The integrated sensing and communication (ISAC) technique has been considered a key enabler for 6G radio access networks. ISAC fulfills a brand new paradigm shift in wireless networks via the seamless interplay between communication and…

Signal Processing · Electrical Eng. & Systems 2025-09-03 Kexin Chen , Yijie Mao , Wonjae Shin , Bruno Clerckx , Christos Masouros

Integrated sensing and communications (ISAC) is poised to be a native technology for the forthcoming Sixth Generation (6G) era, with an emphasis on its potential to enhance communications performance through the integration of sensing…

Signal Processing · Electrical Eng. & Systems 2024-01-12 Andrea Ramos , Musa Furkan Keskin , Henk Wymeersch , Saul Inca , Jose F. Monserrat

Study Objectives: We investigate a Mamba-based deep learning approach for sleep staging on signals from ANNE One (Sibel Health, Evanston, IL), a non-intrusive dual-module wireless wearable system measuring chest electrocardiography (ECG),…

We introduce a new dynamic model with the capability of recognizing both activities that an individual is performing as well as where that ndividual is located. Our model is novel in that it utilizes a dynamic graphical model to jointly…

Artificial Intelligence · Computer Science 2012-07-02 Amarnag Subramanya , Alvin Raj , Jeff A. Bilmes , Dieter Fox

When users want to establish wireless communication between/among their devices, the channel has to be bootstrapped first. To prevent any malicious control of or eavesdropping over the communication, the channel is desired to be…

Cryptography and Security · Computer Science 2009-07-28 Arun Kumar , Nitesh Saxena , Ersin Uzun

This paper studies a secure cell-free integrated sensing and communication (ISAC) system, in which multiple ISAC transmitters collaboratively send confidential information to multiple communication users (CUs) and concurrently conduct…

Information Theory · Computer Science 2023-12-08 Zixiang Ren , Jie Xu , Ling Qiu , Derrick Wing Kwan Ng

Voice authentication on IoT-enabled smart devices has gained prominence in recent years due to increasing concerns over user privacy and security. The current authentication systems are vulnerable to different voice-spoofing attacks (e.g.,…

Sound · Computer Science 2024-12-02 Awais Khan , Ijaz Ul Haq , Khalid Mahmood Malik

In this paper, we consider a massive uncoordinated non-orthogonal multiple access (NOMA) scheme where devices have strict latency requirements and no retransmission opportunities are available. Each device chooses a pilot sequence from a…

Information Theory · Computer Science 2017-07-25 Rana Abbas , Mahyar Shirvanimoghaddam , Yonghui Li , Branka Vucetic

Access to resources by users may need to be granted only upon certain conditions and contexts, perhaps particularly in cyber-physical settings. Unfortunately, creating and modifying context-sensitive access control solutions in dynamic…

Cryptography and Security · Computer Science 2021-08-31 Jinxin Liu , Murat Simsek , Burak Kantarci , Melike Erol-Kantarci , Andrew Malton , Andrew Walenstein

This study investigated the use of deep learning to identify multi-level upper airway collapses in obstructive sleep apnea (OSA) patients based on snoring sounds. We fi-ne-tuned ResNet-50 and Audio Spectrogram Transformer (AST) models using…

Speech enhancement (SE) aims to extract the clean waveform from noise-contaminated measurements to improve the speech quality and intelligibility. Although learning-based methods can perform much better than traditional counterparts, the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-23 Haoyin Yan , Jie Zhang , Cunhang Fan , Yeping Zhou , Peiqi Liu

Noisy situations cause huge problems for suffers of hearing loss as hearing aids often make the signal more audible but do not always restore the intelligibility. In noisy settings, humans routinely exploit the audio-visual (AV) nature of…

Sound · Computer Science 2019-09-24 Mandar Gogate , Kia Dashtipour , Ahsan Adeel , Amir Hussain

Snoring, an acoustic biomarker commonly observed in individuals with Obstructive Sleep Apnoea Syndrome (OSAS), holds significant potential for diagnosing and monitoring this recognized clinical disorder. Irrespective of snoring types, most…

Current methods for active speak er detection focus on modeling short-term audiovisual information from a single speaker. Although this strategy can be enough for addressing single-speaker scenarios, it prevents accurate detection when the…

Computer Vision and Pattern Recognition · Computer Science 2020-05-21 Juan Leon Alcazar , Fabian Caba Heilbron , Long Mai , Federico Perazzi , Joon-Young Lee , Pablo Arbelaez , Bernard Ghanem

In this paper, we propose a novel transmissive reconfigurable intelligent surface transceiver-enhanced robust and secure integrated sensing and communication network. A time-division sensing communication mechanism is designed for the…

Information Theory · Computer Science 2025-01-15 Ziwei Liu , Wen Chen , Qingqing Wu , Zhendong Li , Xusheng Zhu , Qiong Wu , Nan Cheng

`Anytime, Anywhere' data access model has become a widespread IT policy in organizations making insider attacks even more complicated to model, predict and deter. Here, we propose Gargoyle, a network-based insider attack resilient framework…

Cryptography and Security · Computer Science 2018-07-10 Arash Shaghaghi , Salil S. Kanhere , Mohamed Ali Kaafar , Elisa Bertino , Sanjay Jha