Results 11 to 20 of about 15,319 (228)
A Simplified Model for the Rolling Shutter Based Camera in Optical Camera Communications [PDF]
2019 15th International Conference on Telecommunications (ConTEL), 2019 A simplified model of the camera for optical camera communications (OCC) based on the rolling shutter effect is proposed and experimentally verified. In OCC, the key parameters are the exposure time, which is proportional to the DC gain and inversely proportional to the bandwidth, and the rolling shutter delay or the sampling period.
Andrew Burton +2 more
exaly +4 more sources
A Novel Ranging Technique Based on Optical Camera Communications and Time Difference of Arrival
Applied Sciences, 2019 In this work, a new Time Difference of Arrival (TDoA) scheme for distance measurement based on Optical Camera Communication (OCC) systems is proposed.
Jose Rabadan +4 more
doaj +3 more sources
I/Q Demodulator Based Optical Camera Communications
IEEE Photonics Journal, 2022 Visible light communications achieve wireless communications using light sources such as lighting fixtures and electric signboards. The light sources need to blink at high speed to avoid flickering. However, the blinking frequency is much higher than the
Hiroaki Matsunaga +5 more
doaj +1 more source
Special Issue on Optical Camera Communications and Applications
Applied Sciences, 2023 Optical Camera Communication (OCC) is a groundbreaking technology that combines optical signals and image sensors for data transmission [...]
Pankaj Singh, Sung-Yoon Jung
doaj +1 more source
Performance evaluation technique for screen‐to‐camera‐based optical camera communications
IET Optoelectronics, 2023 The increasing development and utilisation of optical camera communications offer an excellent opportunity for the implementation of the smartphone‐to‐smartphone‐based visible light communications (S2SVLC) system.
Vaigai Nayaki Yokar +3 more
doaj +1 more source
Exposure Synchronization in Optical Camera Communications for Time Division Multiplexing
IEEE Photonics Journal, 2023 Optical camera communication (OCC) is a type of visible light communication that employs a camera as the receiver. Various flicker-free OCC methods using a general-purpose low-frame rate camera have been proposed.
Hiroaki Matsunaga +3 more
doaj +1 more source
Optical Camera Communication in Vehicular Applications: A Review [PDF]
IEEE Transactions on Intelligent Transportation Systems, 2022 Recently, substantial development is observed in the area of Internet of Vehicles owing to the application of wireless communication technologies. Majority of these technologies are based on radio frequency (RF); however, RF spectra are overly congested and regulated, and hence, insufficient to support massive data traffic in the future.
Moh. Khalid Hasan +4 more
openaire +1 more source
Low-Cost Optical Camera Communications for IoT
2023 IEEE 34th Annual International Symposium on Personal, Indoor and Mobile Radio Communications (PIMRC), 2023 Visible light communication (VLC) based on an optical camera system is a promising technology for indoor IoT applications. It offers advantages such as reduced interference and improved performance but also suffers from limited data rate transmission due to the fixed capture rate of an image sensor.
Pathan, Sanjha Khan +2 more
openaire +2 more sources
Optical Camera Communications and Machine Learning for Indoor Visible Light Positioning
U.Porto Journal of Engineering, 2023 The potential of VLP is increasing with the rise of indoor mobile machine applications. In this paper, a 3D indoor VLP system based on machine learning and optical camera communications is presented.
Celso Pereira
doaj +1 more source
A unilateral 3D indoor positioning system employing optical camera communications
IET Optoelectronics, 2023 This article investigates the use of a visible light positioning system in an indoor environment to provide a three dimensional (3D) high‐accuracy solution. The proposed system leveraged the use of a single light‐emitting diode and an image sensor at the
Othman Isam Younus +6 more
doaj +1 more source