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Indoor localization plays a vital role in the era of the IoT and robotics, with WiFi technology being a prominent choice due to its ubiquity. We present a method for creating WiFi fingerprinting datasets to enhance indoor localization…

Localization is a key component of the wireless ecosystem. Machine learning (ML)-based localization using channel state information (CSI) is one of the most popular methods for achieving high-accuracy localization with low cost. However, to…

Signal Processing · Electrical Eng. & Systems 2026-05-08 Yuning Zhang , Lei Chu , Omer Gokalp Serbetci , Jorge Gomez-Ponce , Andreas F. Molisch

Identification of a person from fingerprints of good quality has been used by commercial applications and law enforcement agencies for many years, however identification of a person from latent fingerprints is very difficult and…

Computer Vision and Pattern Recognition · Computer Science 2019-07-31 Hamid Jan , Amjad Ali , Shahid Mahmood , Gautam Srivastava

Cross-Technology Interference (CTI) poses challenges for the performance and robustness of wireless networks. There are opportunities for better cooperation if the spectral occupation and technology of the interference can be detected.…

Networking and Internet Architecture · Computer Science 2025-07-01 Thijs Havinga , Xianjun Jiao , Wei Liu , Baiheng Chen , Adnan Shahid , Ingrid Moerman

The human hand possesses distinctive features which can reveal gender information. In addition, the hand is considered one of the primary biometric traits used to identify a person. In this work, we propose a large dataset of human hand…

Computer Vision and Pattern Recognition · Computer Science 2018-09-18 Mahmoud Afifi

Heatstroke and life threatening incidents resulting from the retention of children and animals in vehicles pose a critical global safety issue. Current presence detection solutions often require specialized hardware or suffer from detection…

Signal Processing · Electrical Eng. & Systems 2025-04-02 Hancheng Guo , Zhen Chen , Mo Huang , Xiu Yin Zhang

This paper presents a method for continuous indoor-outdoor environment detection on mobile devices based solely on WiFi fingerprints. Detection of indoor outdoor switching is an important part of identifying a user's context, and it…

Signal Processing · Electrical Eng. & Systems 2019-08-05 Guy Shtar , Bracha Shapira , Lior Rokach

There is growing interest in enabling wireless sensing systems to interpret human motion from unsegmented wireless signals; however, existing CSI-based applications rely heavily on accurate signal segmentation and predefined action labels,…

Networking and Internet Architecture · Computer Science 2026-05-15 Mahmuda Keya , Sneh Pillai , Jiawei Yuan , Kai Zeng , Long Jiao

In recent years the amount of secure information being stored on mobile devices has grown exponentially. However, current security schemas for mobile devices such as physiological biometrics and passwords are not secure enough to protect…

Cryptography and Security · Computer Science 2022-01-24 Rushit Dave , Naeem Seliya , Laura Pryor , Mounika Vanamala , Evelyn Sowells , Jacob mallet

Nowadays, mobile smart devices are widely used in daily life. It is increasingly important to prevent malicious users from accessing private data, thus a secure and convenient authentication method is urgently needed. Compared with common…

Cryptography and Security · Computer Science 2025-04-02 Yadong Xie , Fan Li , Yu Wang

This paper presents BodyPIN, which is a continuous user authentication system by contactless wireless sensing using commodity Wi-Fi. BodyPIN can track the current user's legal identity throughout a computer system's execution. In case the…

Cryptography and Security · Computer Science 2019-05-20 Fei Wang , Zhenjiang Li , Jinsong Han

In this paper, we first present a single-input, multiple-output convolutional neural network that can estimate both heart rate and respiration rate simultaneously by exploiting the underlying link between heart rate and respiration rate.…

Signal Processing · Electrical Eng. & Systems 2022-03-24 Moyu Liu , Zihuai Lin , Pei Xiao , Wei Xiang

Secure and scalable device provisioning is a notorious challenge in Wi-Fi. WPA2/WPA3 solutions take user interaction and a strong passphrase for granted. However, the often weak passphrases are subject to guessing attacks. Notably, there…

Cryptography and Security · Computer Science 2021-04-28 Khan Reaz , Gerhard Wunder

Device-free crowd-counting using WiFi Channel State Information (CSI) is a key enabling technology for a new generation of privacy-preserving Internet of Things (IoT) applications. However, practical deployment is severely hampered by the…

Computer Vision and Pattern Recognition · Computer Science 2026-01-06 Oliver Custance , Saad Khan , Simon Parkinson , Quan Z. Sheng

Passive object sensing with communication signals is a key enabler of perceptive mobile networks and integrated sensing and communication. In practical bistatic deployments, transmitter-receiver asynchrony and hardware impairments introduce…

Signal Processing · Electrical Eng. & Systems 2026-02-25 Zhongqin Wang , J. Andrew Zhang , Kai Wu , Kuangda Chen , Min Xu , Y. Jay Guo

Numerous indoor localization techniques have been proposed recently to meet the intensive demand for location based service, and Wi-Fi fingerprint-based approaches are the most popular and inexpensive solutions. Among them, one of the main…

Networking and Internet Architecture · Computer Science 2013-07-25 Zhiping Jiang , Jizhong Zhao , Xiang-Yang Li , Wei Xi , Kun Zhao , Shaojie Tang , Jinsong Han

Monitoring respiratory health with the use of channel state information (CSI) has shown promising results. Many existing methods focus on monitoring only the respiratory rate, while others focus on monitoring the motion of the chest as a…

Emerging Technologies · Computer Science 2025-08-01 James Rhodes , Lawrence Ong , Duy T. Ngo

While Wi-Fi sensing offers a compelling, privacy-preserving alternative to cameras, its practical utility has been fundamentally undermined by a lack of robustness across domains. Models trained in one setup fail to generalize to new…

Computer Vision and Pattern Recognition · Computer Science 2025-11-25 Cheng Jiang , Yihe Yan , Yanxiang Wang , Chun Tung Chou , Wen Hu

We propose behavior-oriented services as a new paradigm of communication in mobile human networks. Our study is motivated by the tight user-network coupling in future mobile societies. In such a paradigm, messages are sent to inferred…

Networking and Internet Architecture · Computer Science 2008-07-09 Wei-jen Hsu , Debojyoti Dutta , Ahmed Helmy

In this work, a real-time hand gesture recognition system-based human-computer interface (HCI) is presented. The system consists of six stages: (1) hand detection, (2) gesture segmentation, (3) use of five pre-trained convolutional neural…

Computer Vision and Pattern Recognition · Computer Science 2023-01-18 Abir Sen , Tapas Kumar Mishra , Ratnakar Dash