Results 71 to 80 of about 10,821 (205)

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

PSO Algorithm on PAPR Reduction Performance of Asymmetrically Clipped Optical‐OFDM

Applied Computational Intelligence and Soft Computing, Volume 2026, Issue 1, 2026.
This research presents a novel hybrid optimization framework combining artificial neural networks (ANN) and particle swarm optimization (PSO) to mitigate the high peak‐to‐average power ratio (PAPR) in asymmetrically clipped optical‐orthogonal frequency division multiplexing (ACO‐OFDM) systems. While conventional PTS effectively reduces PAPR, it suffers
Hermansyah Alam, Anuar Mat Safar, Norizan Mohamed Nawawi, Mohd Nordin Junita, Aymen Abdalmunam Hameed, Ridha Ejbali   +5 more
wiley   +1 more source

Experimental demonstration of LED-to-LED visible light communication between a traffic light and a vehicle headlamp

EURASIP Journal on Wireless Communications and Networking
Visible light communication (VLC) technology using light-emitting diodes (LEDs) is currently being discussed to solve the problem of oversaturation in radio frequency (RF) bands.
Se-Jin Park, Sung-Man Kim
doaj   +1 more source

SCMA with Low Complexity Symmetric Codebook Design for Visible Light Communication

, 2017
Sparse code multiple access (SCMA) is attracting significant research interests currently, which is considered as a promising multiple access technique for 5G systems.
Gao, Qian, Gong, Chen, Lou, Shun, Xu, Zhengyuan   +3 more
core   +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

High Data Rate Discrete Wavelet Transform-Based PLC-VLC Design for 5G Communication Systems

IEEE Access, 2018
The hybrid power line communication (PLC) and visible light communication (VLC) systems can be effectively utilized for the efficient design of 5G communication setup.
Sobia Baig, Hafiz Muhammad Asif, Tariq Umer, Shahid Mumtaz, Muhammad Shafiq, Jin-Ghoo Choi   +5 more
doaj   +1 more source

Spatial Interference Detection for Mobile Visible Light Communication

, 2017
Taking advantage of the rolling shutter effect of CMOS cameras in smartphones is a common practice to increase the transfered data rate with visible light communication (VLC) without employing external equipment such as photodiodes.
Braud, Tristan, Guler, Ali Ugur, Hui, Pan   +2 more
core   +1 more source

Recent Advancements, Challenges, and Future Directions of Integrating Drones in Smart City Traffic Management: A Systematic Review

Journal of Electrical and Computer Engineering, Volume 2026, Issue 1, 2026.
The implementation of unmanned aerial vehicles (UAVs) or drones has gained immense attention in recent years due to their high potential in enhancing traffic management in a smart city context. This systematic review aims to provide a thorough analysis of the applications of drones in smart traffic management, and limitations and challenges upon ...
Jiehan Teoh, Zi Xuan Lim, Yong Hang Chan, Ahnaf Shabab Kabir, Kian Meng Yap, Deepali   +5 more
wiley   +1 more source

Bidirectional Visible Light Communication System Using a Single VCSEL With Predistortion to Enhance the Upstream Remodulation

IEEE Photonics Journal, 2018
The demand of higher data rates has made it attractive to consider a low-cost laser diode (LD), such as vertical-cavity-surface-emitting laser (VCSEL) for use in visible light communication (VLC) transmitters (Tx) due to their higher electrical-to ...
Liang-Yu Wei, Chi-Wai Chow, Chin-Wei Hsu, Chien-Hung Yeh   +3 more
doaj   +1 more source

Cranial Defect Reconstruction With Custom 3D‐Printed Hydroxyapatite Scaffolds Augmented With rhBMP‐2 or Dipyridamole in a Nonhuman Primate Model

Journal of Tissue Engineering and Regenerative Medicine, Volume 2026, Issue 1, 2026.
Objective Reconstruction of critical‐sized bone defects, particularly in the cranio‐maxillofacial region, presents unique challenges due to the need for integration with adjacent well‐vascularized tissue and the absence of significant load‐bearing requirements.
Griffin P. Bins, Heather A. Burkart, William Molair, Samuel Kogan, Dominic A. Massary, Angel Cabrera Pereira, Adem Aksu, Frank Reinauer, Daniel A. Couture, Lukasz Witek, Christopher M. Runyan, Catherine K. Kuo   +11 more
wiley   +1 more source