Results 191 to 200 of about 59,671 (235)

Channel fluctuation measurement for image sensor based I2V-VLC, V2I-VLC, and V2V-VLC

2014 IEEE Asia Pacific Conference on Circuits and Systems (APCCAS), 2014
In image sensor based VLC, transmitter acquisition and tracking are critical issue. However, the fluctuation of the VLC transmitter in the image plane caused by vehicle movement, complicates correct data reception. Therefore, in this paper, we present results of channel fluctuation measurements for infrastructure-to-vehicle VLC (I2V-VLC), vehicle-to ...
Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Shintaro Arai, Tomohiro Yendo, Koji Kamakura   +6 more
openaire   +1 more source

Joint Illumination and Communication Optimization in Indoor VLC for IoT Applications

IEEE Internet of Things Journal, 2022
Visible light communication (VLC) is one of the candidates to realize data rates of up to tera-bps in indoor scenarios, and is a popular topic in Internet of Things (IoT) applications.
Fubin Wang, Fang Yang, Changyong Pan, Jian Song, Zhu Han   +4 more
semanticscholar   +1 more source

Motion modeling of mobile transmitter for image sensor based I2V-VLC, V2I-VLC, and V2V-VLC

2014 IEEE Globecom Workshops (GC Wkshps), 2014
Visible light communication (VLC) using light-emitting diodes (LEDs) is drawing much attention. There are two types of VLC reception devices, a photodiode and an image sensor. VLC using image sensor is called image sensor based VLC. As the receiver only uses the image sensor pixels that sense LED transmission sources and discards other pixels ...
Masayuki Kinoshita, Takaya Yamazato, Hiraku Okada, Toshiaki Fujii, Shintaro Arai, Tomohiro Yendo, Koji Kamakura   +6 more
openaire   +1 more source

Opportunistic Hybrid VLC-IMU Positioning

2020 12th International Symposium on Communication Systems, Networks and Digital Signal Processing (CSNDSP), 2020
IMU systems can provide positioning without requiring deployed infrastructure. Nonetheless, they suffer from large cumulative errors. On the other hand, visible light communications (VLC) systems can deliver highly accurate positioning as long as communication coverage is assured, which does not always happens in indoor environments.
Carreno, Cristobal, Seguel, Fabián, Soto, Ismael, Krommenacker, Nicolas, Charpentier, Patrick, Adasme, Pablo   +5 more
openaire   +1 more source

Performance Analysis of DF Based mixed VLC-FSO-VLC System

2020 International Conference on Signal Processing and Communications (SPCOM), 2020
In this paper the performance of decode-and-forward (DF) based mixed visible light communication-free space optical communication-visible light communication (VLC-FSO-VLC) co-operative system is presented. In the proposed system, the FSO link is used for providing the outdoor connectivity and VLC environment is used for indoor connectivity.
Rima Deka, Sanya Anees
openaire   +1 more source

Achievable Information Rate in Hybrid VLC-RF Networks With Lighting Energy Harvesting

IEEE Transactions on Communications, 2021
This paper investigates the relay-assisted wireless information and power transfer enabled hybrid visible light communication (VLC)-radio frequency (RF) network, where a light emitting diode (LED) access point (AP) serves multiple information users (IUs)
Yangbo Guo, Ke Xiong, Yang Lu, Duohua Wang, Pingyi Fan, K. Letaief   +5 more
semanticscholar   +1 more source

VLC-IR Dual Switching Transmission System for VLC Sensor Networks

2020 International Conference on Electronics, Information, and Communication (ICEIC), 2020
In this paper, we study the dual transmission technique which uses visible light communication and IR in visible light communication IoT system. Conventional visible light communication has a problem that the communication is disconnected when visible light does not reach directly or when a shadow region occurs due to an obstacle.
Doohee Han, Kyujin Lee
openaire   +1 more source

Access Frameworks and Application Scenarios for Hybrid VLC and RF Systems: State of the Art, Challenges, and Trends

IEEE Communications Magazine, 2022
The further demand for data traffic growth makes the conventional radio frequency (RF) wireless network face ever increasing challenges such as spectrum shortage and access congestion.
Fubin Wang, Fang Yang, Jian Song, Zhu Han   +3 more
semanticscholar   +1 more source

Performance Analysis of DF Based Cascaded VLC-FSO-VLC System

2020 3rd International Conference on Advanced Communication Technologies and Networking (CommNet), 2020
This paper investigates the performance of decode-and-forward (DF) based cascaded visible light communication-free space optical communication-visible light communication (VLC-FSO-VLC) co-operative system. In the proposed system, the outdoor connectivity is provided by an FSO link and indoor connectivity is provided through VLC environment.
Rima Deka, Sanya Anees
openaire   +1 more source

Memory Channel Models of a Hybrid PLC-VLC Link for a Smart Underground Mine

IEEE Internet of Things Journal, 2022
In this article, discrete memory channel models of a low-cost, visible light communication (VLC) and a hybrid amplify-and-forward (AF) powerline communication (PLC) and VLC channel are derived using data obtained from an underground mining testbed.
Oluwafemi Kolade, Ling Cheng
semanticscholar   +1 more source