Results 41 to 50 of about 813 (181)

Analysis of visible light communication (VLC)for biomedical application

International Journal of Engineering & Technology, 2018
In the visible light communication (VLC), light emitting diodes (LEDs) are used as transmitters; the air is the transmission medium and the photodiodes are used for receivers. This is often referred to as light fidelity (Li-Fi). In this method, provide the methodology to evaluate the performance of VLC hotspot networks in the context of data ...
S Yogeeswaran, Ramesh G P
openaire   +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

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‐Enabled QoS‐Aware Adaptive Modulation for Visible Light‐Infrared Communication Systems

IET Communications, Volume 20, Issue 1, January/December 2026.
To address the challenges of channel sensitivity and reliability in aircraft cabin environments, this paper proposes a reinforcement learning‐assisted bidirectional communication system utilizing visible light for the downlink and infrared for the uplink. By combining an improved, resource‐efficient LMMSE algorithm for channel estimation with RL‐driven
Lei Xiao, Quanyi Cheng, Baolin Lai, Xiaodong Liu, BuGao Liu, Junyi Du   +5 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

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

Signal Performance Characterization of Visible Light Nonorthogonal Multiple Access With Integrated Sensing and Communication Network

International Journal of Optics, Volume 2026, Issue 1, 2026.
This paper exploits the signal performance characterization of visible light nonorthogonal multiple access (VL‐NOMA) for integrated sensing and communication (ISAC) network. The VL as a carrier uses light‐emitting diode (LED) to broadcast data to multiple users.
Chidi E. Ngene, Prabhat Thakur, G. Singh, Giovanni Magno   +3 more
wiley   +1 more source

Adaptive Postdistortion for Nonlinear LEDs in Visible Light Communications

IEEE Photonics Journal, 2014
In a visible light communication (VLC) system, the light-emitting diode (LED) is the major source of nonlinearity. The nonlinear effects in the VLC system are different from the conventional wireless communications system.
H. Qian, S. J. Yao, S. Z. Cai, T. Zhou
doaj   +1 more source