Results 51 to 60 of about 812 (180)

Enhancement of Modulation Bandwidth for VLC Utilizing Green Mini‐LED Light Source

Advanced Physics Research, Volume 5, Issue 3, March 2026.
This paper investigates three sizes of green Mini‐LEDs for visible light communication, focusing on modulation bandwidth and the impact of atomic layer deposition (ALD) sidewall passivation. ALD significantly enhances bandwidth (up to 21.6%), confirming suppression of nonradiative recombination.
Rongxing Wu, Yuhan Su, Yurong Dai, Chenghao Wang, Lianfen Huang, Huaxin Liu, Jincheng Xu, Hao‐Chung Kuo, Zhong Chen, Tingzhu Wu   +9 more
wiley   +1 more source

Multi-User Visible Light Communications: State-of-the-Art and Future Directions

IEEE Access, 2018
Visible light communications (VLC) builds upon the dual use of existing lighting infrastructure for wireless data transmission. VLC has recently gained interest as cost-effective, secure, and energy-efficient wireless access technology particularly for ...
Saad Al-Ahmadi, Omar Maraqa, Murat Uysal, Sadiq M. Sait   +3 more
doaj   +1 more source

Addressing Multi-User Interference in Vehicular Visible Light Communications: A Brief Survey and an Evaluation of Optical CDMA MAC Utilization in a Multi-Lane Scenario

Sensors, 2023
Visible Light Communications (VLC) are developing as an omnipresent solution for inter-vehicle communications. Based on intensive research efforts, the performance of vehicular VLC systems has significantly improved in terms of noise resilience ...
Emmanuel Plascencia, Hongyu Guan, Luc Chassagne, Alin-Mihai Căilean, Olivier Barrois, Oyunchimeg Shagdar   +5 more
doaj   +1 more source

Demonstration of 3D‐Printed Optical Antennas for High‐Speed Optical Wireless Communication Using Market‐Ready Materials

Advanced Materials Technologies, Volume 11, Issue 1, 8 January 2026.
The feasibility of 3D‐printed optical antennas using commercial, non‐optical materials for Optical Wireless Communications (OWC) is demonstrated. This study combines spectral analysis, anisotropy effects, and telecom‐relevant optical measurements, revealing promising performance and novel insights for low‐cost, customizable photonic components in ...
Mauro Aresti, Marco Meucci, Paolo Foggi, Caterina Credi, Satoshi Iketani, Cristiana Lofrumento, Jacopo Catani   +6 more
wiley   +1 more source

Deep Reinforcement Learning and IoT for Renewable Energy Optimization in Smart Buildings: A Comprehensive Review

IET Generation, Transmission &Distribution, Volume 20, Issue 1, January/December 2026.
This paper presents a comprehensive review of Internet of Things (IoT)‐deep reinforcement learning (DRL) integration for smart building energy management, with an emphasis on addressing renewable energy variability, real‐time decision‐making and interoperability challenges.
Tehseen Mazhar, Sghaier Guizani, Habib Hamam   +2 more
wiley   +1 more source

Position Estimation Method Using RGB Values of LED Colour Temperature in a Fuzzy Logic System

IET Optoelectronics, Volume 20, Issue 1, January/December 2026.
This study proposes a novel LED‐based positioning system that estimates two‐dimensional position by analysing the chromaticity and frequency components (via FFT) of indoor lighting in tunnel environments where GPS signals are blocked. Experimental results demonstrate that the proposed method achieves reliable positioning accuracy within 5 cm in ...
Myung‐Hoon Sung, Wu‐Sung Choi, Jun‐Hee Lee, Jae‐won Kim, Yong‐Gyu Jeong, So Hyeon Jo, Joo Woo, Han Byeol Bae, Suk Kun Jee, Jae Hoon Jeong, Teak Young Seung   +10 more
wiley   +1 more source

AI‐Enhanced Traffic Prediction and Adaptive Frequency Management for Advanced V2V Communication Utilizing Li‐Fi and mmWave Technologies

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
This paper proposes an AI‐based light fidelity (Li‐Fi) and millimeter‐wave (mmWave) architecture to hastily mitigate most of the challenges in vehicle‐to‐vehicle (V2V) communication systems. Through traffic prediction based on machine learning technologies, the system enables proactive resource allocation, as well as intelligent frequency management in
Mohammed Aboud Kadhim, Hamood Shehab Hamid, Ahmed Obaid Aftan, Deepali   +3 more
wiley   +1 more source

Performance analysis of adaptive OFDM modulation scheme in VLC vehicular communication network in realistic noise environment

EURASIP Journal on Wireless Communications and Networking, 2018
Optical wireless communications (OWC) has emerged as a strong candidate for wireless communications, due to the capacity limitation in the radio frequency (RF) spectrum.
Hasan Farahneh, Fatima Hussain, Xavier Fernando   +2 more
doaj   +1 more source

Propagation Characteristics Comparisons between mmWave and Visible Light Bands in the Conference Scenario

Photonics, 2022
Millimeter-wave (mmWave) communications and visible light communications (VLC) are proposed to form hybrid mmWave/VLC systems. Furthermore, channel modeling is the foundation of system design and optimization.
Baobao Liu, Pan Tang, Jianhua Zhang, Yue Yin, Guangyi Liu, Liang Xia   +5 more
doaj   +1 more source

SPICE Modeling of GaN MicroLEDs for Optical Communication

Journal of the Society for Information Display, Volume 33, Issue 10, Page 1030-1045, October 2025.
Unified Gallium Nitride (GaN) µLED model: a new small‐signal approach integrated with static models enables accurate circuit‐level simulation of optical links (Figure a). Implemented in SPICE and validated experimentally, the model shows excellent agreement (Figure b), offering a compact and practical tool for next‐generation communication systems ...
Sultan El Badaoui, Patrick Le Maitre, Anthony Cibié, Julia Simon, Aurélien Lardeau‐Falcy, Jeremy Bilde, Louwenn Cherruault, Manon Arch, Michael Pelissier, Yannis Le Guennec   +9 more
wiley   +1 more source