Results 11 to 20 of about 2,376 (139)
Experimental Demonstration of RGB LED-Based Optical Camera Communications [PDF]
IEEE Photonics Journal, 2015 Red, green, and blue (RGB) light-emitting diodes (LEDs) are widely used in everyday illumination, particularly where color-changing lighting is required.
Pengfei Luo +7 more
doaj +5 more sources
Photography Trilateration Indoor Localization with Image Sensor Communication [PDF]
Sensors, 2019 Localization has become an important aspect in a wide range of mobile services with the integration of the Internet of things and service on demand. Numerous mechanisms have been proposed for localization, most of which are based on the estimation of ...
Nam Tuan Le, Yeong Min Jang
doaj +2 more sources
A Tensor-Based Optical Camera Communication (OCC) System With Joint Data Detection and Video Restoration [PDF]
, 2021 <div>The Optical Camera Communication (OCC) technology allows Visible Light Communications (VLC), one of the key technologies for the Sixth Generation (6G) of mobile communications, to be used with image sensors on the receiver side. For Screen-to-Camera (S2C) applications, in which Light Emitting Diode (LED) screens are used to send information ...
Bruno de Almeida Larêdo +1 more
openaire +1 more source
Optics Express, 2022 We demonstrate an optical-camera-communication (OCC) system utilizing a laser-diode (LD) coupled optical-diffusing-fiber (ODF) transmitter (Tx) and rolling-shutter based image sensor receiver (Rx). The ODF is a glass optical fiber produced for decorative lighting or embedded into small areas where bulky optical sources cannot fit. Besides, decoding the
Deng-Cheng Tsai +6 more
openaire +2 more sources
Digital forensics challenges and readiness for 6G Internet of Things (IoT) networks
WIREs Forensic Science, Volume 5, Issue 6, November/December 2023., 2023 6G Internet of Things networks. Abstract The development of sixth‐generation (6G) wireless communication technology is expected to provide super high‐speed data transmission, and advanced network performance than the current fifth‐generation (5G) and be fully functional by the 2030s.
Alex Olushola Akinbi
wiley +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
Multispectral Optical camera communication links based on spectral signature multiplexing
IET Optoelectronics, Volume 17, Issue 4, Page 91-100, August 2023., 2023 This paper focuses on using the multispectral cameras' features to take advantage of the light‐emitting diode (LED) behaviour in a novel communication scheme based on spectral signature multiplexing. The thermally induced LED variations can be detected by the multispectral camera to obtain new communication channels from the same device.
Daniel Moreno +4 more
wiley +1 more source
A unilateral 3D indoor positioning system employing optical camera communications
IET Optoelectronics, Volume 17, Issue 4, Page 110-119, August 2023., 2023 This paper 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 can retrieve the 3D coordinate of the Rx using a combination of the angle of arrival and received signal strength (RSS).
Othman Isam Younus +6 more
wiley +1 more source
Computation, 2022 With an increase in network-connected devices, the existing Radio Frequency (RF) spectrum is getting highly saturated. Non-RF-based communication systems have recently garnered attention as they can be considered an alternative to RF-based systems for ...
Sanket Salvi, Geetha Vasantha
doaj +1 more source
Frame recovery using multiple images in rolling shutter based systems
IET Optoelectronics, Volume 17, Issue 4, Page 162-174, August 2023., 2023 An algorithm for decoding identifiers in rolling shutter based communication systems is proposed by the authors, based on reconstructing the original bitstream from multiple frames. The algorithm was validated by simulation for 6‐bit, 8‐bit and 10‐bit codewords, showing an improvement in the recovery probability compared to a baseline algorithm.
Miguel Rêgo +3 more
wiley +1 more source