Optical Wireless Communication: A Candidate 6G Technology?

Arai, Shintaro; Kinoshita, Masayuki; Yamazato, Takaya

doi:10.1587/transfun.2020wbi0001

Cited by 44 publications

(20 citation statements)

References 41 publications

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“…Figure 6 shows the spectrum bands to be prospectively occupied by the new standard. As mm-wave and THz operation components will be expensive, visible light communication is a highly qualified technology to be used in 6G as optical components have been widely available for decades, and they are typically low cost [ 94 ]. In general terms, propagation in optical wireless communications is quite like that in THz bands, with very short reach and signals being easily blocked by objects; thus, many of the proposed THz applications can be supported by VLC as well [ 95 ].…”

Section: Owc On the Smart Tourism Destinationmentioning

confidence: 99%

Survey on Optical Wireless Communications-Based Services Applied to the Tourism Industry: Potentials and Challenges

Aguiar-Castillo

Guerra

Rufo

et al. 2021

Sensors

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In this paper, we explore the potential applications of Optical Wireless Communications in the tourism industry, considering both indoor and outdoor scenarios and different transmission speeds. They range from high-speed atmospheric outdoor links (Free-Space Optics (FSO)) to indoor systems based on high-speed lighting networks (known under the trade name LiFi©) or low-speed services support the Internet of Things networks, using visible light (VLC) or IR emitters, with receivers based on either on classical photodiodes or in image sensors, known as Optical Camera Communications. The avant-garde applications of this technology have been studied focusing on three possible use scenarios: the traveler himself, in what we have called TAN (Tourist Area Network); the tourist facility, which includes not only the hotel but also leisure areas (theme parks, museums, natural protected areas) or services (restaurants, shopping areas, etc.); and the entire destination, which can be both the city or the territory where the tourist is received, within the paradigm of the Smart Tourist Destination (STD). In addition to the classic services based on radio frequency and wired broadband networks, these technologies will make it possible to meet the tourist’s challenging needs, the establishment, and the destination. Besides, they cover the services imposed by the new marketing services related to location or context and feed the big data systems used to study tourist behavior.

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Section: Owc On the Smart Tourism Destinationmentioning

confidence: 99%

Survey on Optical Wireless Communications-Based Services Applied to the Tourism Industry: Potentials and Challenges

Aguiar-Castillo

Guerra

Rufo

et al. 2021

Sensors

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show abstract

“…In the event of a disaster, information can be delivered safely and quickly to those in need through multiple communication channels [11].…”

Section: Introductionmentioning

confidence: 99%

“…Although this problem can be solved by using a dedicated high-speed camera, the high cost makes it impractical for general-purpose applications. Therefore, the challenge is to improve the data transmission rate of ISC using commercially available cameras [11]. Various schemes, such as rolling shutter-type ISC [25] and polygon-mirror-based ISC [26], have been proposed to increase the data transmission rate.…”

Section: Introductionmentioning

confidence: 99%

Rotary LED Transmitter for Improving Data Transmission Rate of Image Sensor Communication

et al. 2021

Self Cite

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This study focuses on image sensor communication (ISC), which is a form of visible light communication, using a light-emitting diode (LED) and a camera as the transmitting and receiving device, respectively. In an ISC system, the receiver captures optical signals transmitted by blinking LEDs as an image and demodulates the data using the captured image. The ISC system can spatially separate signals and noises in the image, thus providing superior anti-interference ability. However, because the speed of ISC depends on the shooting speed of the camera, the receiver suffers from a low data transmission rate when a low-speed camera is used. To improve the data rate of ISC, we have developed a rotary LED transmitter. This transmitter cylindrically rotates the blinking LEDs during the exposure time of the camera. The camera captures multiple blinking states of LEDs as afterimages in a single image, thereby increasing the amount of data received per image. In this paper, we propose an ISC system using a rotary LED transmitter and present an experiment for the evaluation of the data rate. The result indicates that the data rate of the rotary LED transmitter is 60 times that of the conventional method.

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“…Optical wireless communication (OWC) technique is a promising solution to solve this issue, which usually works at a higher frequency with a much more broad spectrum. Furthermore, OWC is also one of the potential candidates for 6G high-capacity transmission technique and has attracted tremendous attention [4,5]. The visible light communication (VLC) system and infrared (IR) OWC system are the two most studied technologies for indoor OWC communication.…”

Section: Introductionmentioning

confidence: 99%

LiDAR Integrated High-Capacity IR OWC System with Abilities of Localization and Link Alignment

Zhi¹

2021

Preprint

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By using narrow infrared (IR) beams, optical wireless communication (OWC) system can realize ultra-high capacity and high-privacy transmission. However, due to the point-to-point connection approach, a high-accuracy localization system and beam-steering antenna (BSA) are required to steer the signal beam to user terminals. In addition, to achieve link alignment in the receiver, the BSA needs to be within the limited receiver field of view (FoV). This problem greatly limits the practical application of high-capacity IR optical wireless communication and has not been well solved yet. In this paper, we proposed an indoor beam-steering IR OWC system with high-accuracy and calibration-free localization ability by employing a coaxial frequency modulated continuous wave (FMCW) light detection and ranging (LiDAR) system. In the meantime, benefit from the mm-level ranging accuracy of the LiDAR system, a feasible approach to deal with the link alignment issue for practical applications is firstly demonstrated. With the assistance of the LiDAR system, we experimentally achieved the localization of user terminals with a 0.038-degree localization accuracy, link alignment at the receiver and an error-free on-off keying (OOK) downlink transmission of 20 Gb/s in free space at 3-m distance is demonstrated.

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Optical Wireless Communication: A Candidate 6G Technology?

Cited by 44 publications

References 41 publications

Survey on Optical Wireless Communications-Based Services Applied to the Tourism Industry: Potentials and Challenges

Survey on Optical Wireless Communications-Based Services Applied to the Tourism Industry: Potentials and Challenges

Rotary LED Transmitter for Improving Data Transmission Rate of Image Sensor Communication

LiDAR Integrated High-Capacity IR OWC System with Abilities of Localization and Link Alignment

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