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This paper introduces the first wireless gesture recognition system that operates using existingWi-Fi signals and devices. To achieve this, we first identify limitations of existing wireless gesture recognition approaches that limit their…

Human-Computer Interaction · Computer Science 2014-11-21 Rajalakshmi Nandakumar , Bryce Kellogg , Shyamnath Gollakota

Guided wireless technology is an innovative approach that combines the strengths of guided waves and wireless communication. In traditional wireless systems, signals propagate through the air, where they are vulnerable to interference,…

Information Theory · Computer Science 2026-02-26 Mohamed Akrout , Amine Mezghani , Faouzi Bellili , Robert W. Heath

The proposed system aims to be a techno-friend of visually impaired people to assist them in orientation and mobility both indoor and outdoor. Moving through an unknown environment becomes a real challenge for most of them, although they…

Human-Computer Interaction · Computer Science 2021-12-03 Shyama Kumari Arunachalam , Roopa V , Meena H B , Vijayalakshmi , T Malavika

Light fidelity (LiFi), which is based on visible light communications (VLC), is celebrated as a cutting-edge technological paradigm that is envisioned to be an indispensable part of 6G systems. Nonetheless, LiFi performance is subject to…

Information Theory · Computer Science 2021-04-22 Hanaa Abumarshoud , Lina Mohjazi , Octavia A. Dobre , Marco Di Renzo , Muhammad Ali Imran , Harald Haas

Light-fidelity (LiFi) is a fully-networked bidirectional optical wireless communication (OWC) that is considered a promising solution for high-speed indoor connectivity. Unlike in conventional radio frequency wireless systems, the OWC…

Signal Processing · Electrical Eng. & Systems 2020-07-23 Mohamed Amine Arfaoui , Mohammad Dehghani Soltani , Iman Tavakkolnia , Ali Ghrayeb , Chadi Assi , Majid Safari , Harald Haas

White-Fi refers to WiFi deployed in the TV white spaces. Unlike its ISM band counterparts, White-Fi must obey requirements that protect TV reception. As a result, optimization of citywide White-Fi networks faces the challenges of…

Networking and Internet Architecture · Computer Science 2018-09-20 Sneihil Gopal , Sanjit K. Kaul , Sumit Roy

Wireless local area networks (WLANs) empowered by IEEE 802.11 (Wi-Fi) hold a dominant position in providing Internet access thanks to their freedom of deployment and configuration as well as the existence of affordable and highly…

Networking and Internet Architecture · Computer Science 2022-10-07 Szymon Szott , Katarzyna Kosek-Szott , Piotr Gawłowicz , Jorge Torres Gómez , Boris Bellalta , Anatolij Zubow , Falko Dressler

The increasing need for robustness, reliability, and determinism in wireless networks for industrial and mission-critical applications is the driver for the growth of new innovative methods. The study presented in this work makes use of…

Networking and Internet Architecture · Computer Science 2025-12-04 Gabriele Formis , Amanda Ericson , Stefan Forsstrom , Kyi Thar , Gianluca Cena , Stefano Scanzio

We demonstrated a simple technique for monitoring range variation with millimeter-precision between two remote sites using off-the-shelf wireless communication modules. The need for the flexible positioning of wireless devices is…

Signal Processing · Electrical Eng. & Systems 2018-10-31 Bhola R. Panta , Kohta Kido , Satoshi Yasuda , Yuko Hanado , Seiji Kawamura , Hiroshi Hanado , Kenichi Takizawa , Masugi Inoue , Nobuyasu Shiga

The paper proclaims a summary of Li-Fi technology. It is an efficient data communication mechanism involving visible light as a medium of transmission. This monograph introduces the concept of Li-Fi and its working model. Furthermore, it…

Networking and Internet Architecture · Computer Science 2016-10-20 Mihir Chauhan , Aditya Kulai

The looming electromagnetic spectrum crisis -- due to the fact of the explosive growth in the increasing user data demand -- has encouraged the emergence of new wireless technologies. This paper surveys the state-of-the-art leading and…

Signal Processing · Electrical Eng. & Systems 2023-03-20 Victor Monzon Baeza , Rafael Arellano Garcia

Wi-Fi signals-based person identification attracts increasing attention in the booming Internet-of-Things era mainly due to its pervasiveness and passiveness. Most previous work applies gaits extracted from WiFi distortions caused by the…

Signal Processing · Electrical Eng. & Systems 2019-07-22 Fei Wang , Jinsong Han , Feng Lin , Kui Ren

Wi-Fi is among the most successful wireless technologies ever invented. As Wi-Fi becomes more and more present in public and private spaces, it becomes natural to leverage its ubiquitousness to implement groundbreaking wireless sensing…

Networking and Internet Architecture · Computer Science 2021-03-30 Francesco Restuccia

The wireless physical-layer identification (WPLI) techniques utilize the unique features of the physical waveforms of wireless signals to identify and classify authorized devices. As the inherent physical layer features are difficult to…

Cryptography and Security · Computer Science 2016-03-16 Wenhao Wang , Zhi Sun , Kui Ren , Bocheng Zhu , Sixu Piao

Human behavior recognition has been considered as a core technology that can facilitate variety of applications. However, accurate detection and recognition of human behavior is still a big challenge that attracts a lot of research efforts.…

Human-Computer Interaction · Computer Science 2017-12-04 Zhu Wang , Bin Guo , Zhiwen Yu , Xingshe Zhou

While the wireless word moves towards higher frequency bands, new challenges arises, due to the inherent characteristics of the transmission links, such as high path and penetration losses. Penetration losses causes blockages that in turn…

Signal Processing · Electrical Eng. & Systems 2024-11-19 Evangelos Koutsonas , Alexandros-Apostolos A. Boulogeorgos , Stylianos E. Trevlakis , Tanweer Ali , Theodoros A. Tsiftis

Today, mobile phones are very popular, fast growing technology. Mobile phones of the present day are more and more like small computers. The so-called "smartphones" contain a wealth of information each. This information has been proven to…

Cryptography and Security · Computer Science 2016-09-13 Bert Busstra , Nhien-An Le-Khac , M-Tahar Kechadi

Wi-Fi link is unpredictable and it has never been easy to measure it perfectly; there is always bound to be some bias. As wireless becomes the medium of choice, it is useful to capture Wi-Fi traces in order to evaluate, tune, and adapt the…

Networking and Internet Architecture · Computer Science 2024-11-19 Mohammad Imran Syed , Renata Teixeira , Sara Ayoubi , Giulio Grassi

While fulfilling communication tasks, wireless signals can also be used to sense the environment. Among various types of sensing media, WiFi signals offer advantages such as widespread availability, low hardware cost, and strong robustness…

Computer Vision and Pattern Recognition · Computer Science 2025-12-05 Ruijing Liu , Cunhua Pan , Jiaming Zeng , Hong Ren , Kezhi Wang , Lei Kong , Jiangzhou Wang

Wireless communications are characterized by their unpredictability, posing challenges for maintaining consistent communication quality. This paper presents a comprehensive analysis of various prediction models, with a focus on achieving…

Networking and Internet Architecture · Computer Science 2025-09-24 Gabriele Formis , Gianluca Cena , Lukasz Wisniewski , Stefano Scanzio