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With the wireless internet access being increasingly popular with services such as HD video streaming and so on, the demand for high data consuming applications is also rising. This increment in demand is coupled with a proportional rise in…

Networking and Internet Architecture · Computer Science 2024-07-26 Haneet Kour , Rakesh Kumar Jha , Sanjeev Jain

Visible Light Communication (VLC) is a promising solution to address the growing demand for wireless data, leveraging the widespread use of light-emitting diodes (LEDs) as transmitters. However, its deployment is challenged by link…

Signal Processing · Electrical Eng. & Systems 2025-05-16 Borja Genoves Guzman , Maïté Brandt-Pearce

We report that flat substrates such as glass coverslips with surface roughness well below 0.5 nm feature notable speckle patterns when observed with high-sensitivity interference microscopy. We uncover that these speckle patterns…

Optics · Physics 2022-11-30 Shupei Lin , Yong He , Delong Feng , Marek Piliarik , Xue-Wen Chen

Due to the diversity of attack materials, fingerprint recognition systems (AFRSs) are vulnerable to malicious attacks. It is thus important to propose effective fingerprint presentation attack detection (PAD) methods for the safety and…

Computer Vision and Pattern Recognition · Computer Science 2023-03-14 Feng Liu , Zhe Kong , Haozhe Liu , Wentian Zhang , Linlin Shen

The proliferation of Internet of Things (IoT) devices has raised significant concerns regarding their security vulnerabilities. This paper explores the security risks associated with smart light systems, focusing on covert communication…

Cryptography and Security · Computer Science 2024-08-28 Ravisha Rohilla , Janvi Panwar

Visible light communication (VLC) is emerging as a key technology for future wireless communication systems due to its unique physical-layer advantages over traditional radio-frequency (RF)-based systems. However, its integration with…

Information Theory · Computer Science 2026-01-22 Zhouxiang Zhao , Zhaohui Yang , Chen Zhu , Xin Tong , Zhaoyang Zhang

Visible Light Communication (VLC) is seen as a complementary wireless technology to Radio Frequency (RF). However, VLC is very sensitive to the signal blockage and suffers from shadowing due to the high directionality of the optical…

Networking and Internet Architecture · Computer Science 2020-02-06 Piotr Gawłowicz , Elnaz Alizadeh Jarchlo , Anatolij Zubow

Visible Light Communication (VLC) is a rapidly growing technology which can supplement the current radio frequency (RF) based wireless communication systems. VLC can play a huge part in solving the ever-increasing problem of spectrum…

Networking and Internet Architecture · Computer Science 2020-12-03 Sifat Ibne Mushfique , Ahmad Alsharoa , Murat Yuksel

The rapid development of the semiconductor industry and the ubiquity of electronic devices have led to a significant increase in the counterfeiting of integrated circuits (ICs). This poses a major threat to public health, the banking…

Signal Processing · Electrical Eng. & Systems 2025-12-23 Runze Liu , Prasun Datta , Anirudh Nakra , Chau-Wai Wong , Min Wu

Vision-Language Models (VLMs), such as CLIP, have demonstrated remarkable zero-shot out-of-distribution (OOD) detection capabilities, vital for reliable AI systems. Despite this promising capability, a comprehensive understanding of (1) why…

Computer Vision and Pattern Recognition · Computer Science 2025-09-18 Yuxiao Lee , Xiaofeng Cao , Wei Ye , Jiangchao Yao , Jingkuan Song , Heng Tao Shen

This paper introduces a method for using LED-based environmental lighting to produce visually imperceptible watermarks for consumer cameras. Our approach optimizes an LED light source's spectral profile to be minimally visible to the human…

Computer Vision and Pattern Recognition · Computer Science 2025-11-18 Hodaka Kawachi , Tomoya Nakamura , Hiroaki Santo , SaiKiran Kumar Tedla , Trevor Dalton Canham , Yasushi Yagi , Michael S. Brown

The emergence of visible light communication (VLC) technology as a solution to solve radio frequency impediments, such as spectrum shortage, is continuously appealing. In addition to its large and unlicensed bandwidth, VLC provides a high…

Signal Processing · Electrical Eng. & Systems 2020-09-16 Alain R. Ndjiongue , Telex M. N. Ngatched , Octavia A. Dobre , Harald Haas

Visible light communication (VLC) is nowadays envisaged as a promising technology to enable new classes of services in intelligent transportation systems ranging, e.g., from assisted driving to autonomous vehicles. The assessment of the…

Signal Processing · Electrical Eng. & Systems 2020-04-03 Stefano Caputo , Lorenzo Mucchi , Francesco Saverio Cataliotti , Marco Seminara , Tassadaq Nawaz , Jacopo Catani

Providing high data rates is one of the big concerns in visible light communication (VLC) systems. This paper introduces a data centre design that use a VLC system for downlink communication. In this work, RYGB laser diodes (LD) are used as…

Signal Processing · Electrical Eng. & Systems 2019-03-30 Osama Zwaid Alsulami , Mohamed O. I. Musa , Mohammed T. Alresheedi , Jaafar M. H. Elmirghani

This paper reports a detailed experimental characterization of optical performances of Visible Light Communication (VLC) system using a real traffic light for ultra-low latency, infrastructure-to-vehicle (I2V) communications for intelligent…

Signal Processing · Electrical Eng. & Systems 2020-04-03 M. Seminara , T. Nawaz , S. Caputo , L. Mucchi , J. Catani

Visible light communication (VLC) is an emerging technique that uses light-emitting diodes (LED) to combine communication and illumination. It is considered as a promising scheme for indoor wireless communication that can be deployed at…

Signal Processing · Electrical Eng. & Systems 2017-09-19 Houssem Sifaou , Ki-Hong Park , Abla Kammoun , Mohamed-Slim Alouini

Visible light communication (VLC) provides a short-range optical wireless communication through light-emitting diode (LED) lighting. Light beam flickering and dimming are among the challenges to be addressed in VLC. Conventional methods for…

Information Theory · Computer Science 2019-08-19 Elie Ngomseu Mambou , Thibaud Tonnellier , Seyyed Ali Hashemi , Warren J. Gross

Especially in context of critical urban infrastructures, trust in IoT data is of utmost importance. While most technology stacks provide means for authentication and encryption of device-to-cloud traffic, there are currently no mechanisms…

Cryptography and Security · Computer Science 2020-06-12 Felix Lorenz , Lauritz Thamsen , Andreas Wilke , Ilja Behnke , Jens Waldmüller-Littke , Ilya Komarov , Odej Kao , Manfred Paeschke

Outsourced printed circuit board (PCB) fabrication necessitates increased hardware assurance capabilities. Several assurance techniques based on automated optical inspection (AOI) have been proposed that leverage PCB images acquired using…

Computer Vision and Pattern Recognition · Computer Science 2023-03-22 Nathan Jessurun , Olivia P. Dizon-Paradis , Jacob Harrison , Shajib Ghosh , Mark M. Tehranipoor , Damon L. Woodard , Navid Asadizanjani

Wireless localization for mobile device has attracted more and more interests by increasing the demand for location based services. Fingerprint-based localization is promising, especially in non-Line-of-Sight (NLoS) or rich scattering…

Signal Processing · Electrical Eng. & Systems 2019-07-02 Heng Zhang , Zhichao Zhang , Shunqing Zhang , Shugong Xu , Shan Cao
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