Results 121 to 130 of about 2,753 (157)

Research on Visible Light Communication/ Optical Camera Communication (VLC/OCC) System for Industrial Applications

2024 RIVF International Conference on Computing and Communication Technologies (RIVF)
This paper presents a comprehensive study on the implementation and evaluation of a Visible Light Communication/Optical Camera Communication (VLC/OCC) system for long-distance industrial applications.
N. H. Nguyen
exaly   +4 more sources

Wide Field-of-View (FOV) Light-Diffusing Fiber Optical Transmitter for Rolling Shutter based Optical Camera Communication (OCC)

Optical Fiber Communication Conference (OFC) 2022, 2022
We propose a wide field-of-view (FOV) light-diffusing-fiber (LDF) transmitter optical-camera-communication (OCC). Pixel-row-per-bit-neural-network (PRPB-NN) is employed for rolling-shutter-pattern decoding. PRPB-NN provides efficient decoding at 360o around LDF circumference and 160o Rx rotation-angle at 2100-bit/s.
Deng-Cheng Tsai, Yun-Han Chang, Yang Liu 0194, Chi-Wai Chow, Yun-Shen Lin, Chien-Hung Yeh   +5 more
openaire   +3 more sources

Z-Score Averaging Neural Network and Background Content Removal for High Performance Rolling Shutter based Optical Camera Communication (OCC)

Optical Fiber Communication Conference (OFC) 2021, 2021
We propose and demonstrate using Z-score averaging neural-network (Z-NN) and background-content-removal (BCR) to mitigate the inter-symbol-interference (ISI) in camera-communication (OCC). 950-bit/s over 3-m free-space transmission is achieved.
Yun-Shen Lin, Yang Liu 0194, Chi-Wai Chow, Yun-Han Chang, Dong-Chang Lin, Shao-Hua Song, Ke-Ling Hsu, Chien-Hung Yeh   +7 more
openaire   +3 more sources

An indoor positioning method in a concert hall using optical camera communication (OCC) technology

2017 International Conference on Information and Communication Technology Convergence (ICTC), 2017
Recent smart devices offer technologies that can measure indoor as well as outdoor locations. In the case of outdoor positioning, a global positioning system (GPS) is generally used. There is a limit to the method of using the GPS signal for indoor positioning.
Eunyoung Jeong, Bong-Seok Seo, Namtae Kim, Dongho You, Dong Ho Kim, Ye Hoon Lee   +5 more
openaire   +2 more sources

OCC Protocol for connected LEDs in Optical Camera Communication Networks

2018 Tenth International Conference on Ubiquitous and Future Networks (ICUFN), 2018
Nowadays, and Internet of Lights (IoL) can be used to help a variety of lights in home, building, factory, city, and so on. The achievement of wireless communication technologies have brought convenience and amazing services to users. The hybrid use of wireless technologies in a system is not a novel idea, however, in this paper, we introduce the ...
ThanhLuan Vu, Minh Duc Thieu, Nguyen Van Thang, Yeong Min Jang   +3 more
openaire   +3 more sources

Experimental Validation of the Color-Hopping Space-Time (CHST) Scheme for Optical Camera Communication (OCC) Systems

2025 IEEE Latin-American Conference on Communications (LATINCOM)
Visible Light Communication (VLC) and Optical Camera Communication (OCC) are recent viable technologies for wireless communication, using existing lighting infrastructure and conventional cameras. The Color-Hopping Space-Time (CHST) scheme is a promising
Igor Santos Cruz Rodrigues, Leandro Ronchini Ximenes, Rafael Pérez Jiménez   +2 more
openaire   +2 more sources

Asynchronous scheme for unidirectional optical camera communications (OCC)

2014 Sixth International Conference on Ubiquitous and Future Networks (ICUFN), 2014
This paper proposes software-based scheme for unidirectional communications of OCC system. Proposed scheme based on over-sampling technique will solve fully effects of exposure to the unidirectional OCC system where there is no synchronization. These schemes do not consider mitigating flicker, and then they are suitable for both global shutter and ...
Trang Nguyen, Nam Tuan Le, Yeong Min Jang   +2 more
openaire   +3 more sources

Wearable Shaped Side-Emitting Fiber Transmitters for Optical Camera Communication

Journal of Lightwave Technology
Wearable communication is one of the key drivers in the Internet of Things (IoT) and body area networks for transmitting vital sensory data. Wearable devices must be lightweight, flexible, and have low energy consumption.
Klára Eöllős-Jarošíková, Carlos Guerra-Yánez, Óscar Gómez-Cárdenes, Rafael Perez‐Jimenez, Zabih Ghassemlooy, S. Zvánovec, M. Komanec   +6 more
semanticscholar   +1 more source

Markov Models for predicting the Internet of Behaviour (IoB) of tourists: Optical Camera Communications (OCC) as a localization tool for indoor touristic scenarios

2023
This work proposes a simulation tool of a system aimed to predict the movements of tourists in an indoor scenario. It is based on a visible light positioning (VLP) system using LED lamps and an App in the user's mobile phone. VLP offers a dual illumination-location solution and provides highly accurate indoor positioning data of the user, able to feed ...
Rufo Torres, Saray, Aguiar Castillo, Lidia, Rufo, Julio, Rabadan, Jose, Perez Jimenez, Rafael   +4 more
openaire   +1 more source

U-Net-Based Optical Camera Communication in Intensity-Constrained Scenarios

Journal of Lightwave Technology
Optical Camera Communication (OCC), which utilizes the unlicensed visible light spectrum, is regarded as a key enabler for future sixth-generation wireless technologies.
Md Osman Ali, Moh. Khalid Hasan, Yitong Wang, Mohamed Shehata, Jing Fu, Stanley Luong, Ke Wang   +6 more
semanticscholar   +1 more source