Searched for: subject%3A%22Visible%255C%2Blight%255C%2Bcommunication%22
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van Mierop, Ron (author)
The considerable increase in the number of devices needing connectivity, such as mobile phones and Internet of Things (IoT) devices, has led to an exponential rise in data volumes during the last years, that will surely continue over the next decade. Therefore, it will be increasingly challenging to provide sufficient RF resources. A novel...
master thesis 2023
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de Groot, Lucan (author)
Visible Light Communication (VLC) has been gaining interest in the industry and academia for the last decade. VLC enables a high-speed communication alternative to conventional radio such as Bluetooth or WiFi and presents a solution to the 'spectrum crunch'. More recently, the combination of energy harvesting and VLC has been explored to enable...
master thesis 2022
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Dsouza, Vivian (author)
The rapidly growing number of wireless devices typically use radio frequency for communication. However, in order to avoid using the expensive and increasingly congested radio bands, research areas are moving in the direction of using ambient light to form physical links in wireless communication systems. Unlike active Visible Light...
master thesis 2022
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Durmuş, Merdan (author)
Visible Light Communication (VLC) is becoming an important research area where Visible Light Sources such as LED, Halogen Lamps and even the sun can be used for Wireless Communication. LED-to-Camera Communication is a form of VLC, where the camera can notice intermittent stimuli changes above a certain threshold frequency (flicker fusion...
bachelor thesis 2022
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van de Beek, Valentijn (author)
Visible Light Communication is a method of wireless communication that avoids the oversaturated frequencies used by radio communication. Prior research typically uses the camera on smartphone for communication, but using a camera is energy-intensive and inefficient. Some alternatives are photodiodes and ambient light sensors, however the former...
bachelor thesis 2022
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Lin, Giovanni (author)
Augmented Reality has the potential to expand our interaction with our surrounding environment. A potential solution to improve this interactability is Visible Light Communication through blinking Light Emitting Diodes (LEDs). Data is encoded and then transmitted by blinking the LED, a smart-phone camera is then pointed at the LED to decode the...
bachelor thesis 2022
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Crha, Vojta (author)
In the recent years, several papers have implemented methods which seamlessly integrate data streams into high frame rate monitors without affecting casual viewer experience. This paper proposes an improvement to existing systems which can in theory increase the data throughput of the data stream several times. Exploiting the same...
bachelor thesis 2022
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Hossain, Shaan (author)
Although the demand for wireless communication continuous to grow, the number of frequencies available in traditional data transmission is limited. Visible Light Communication (VLC) is a promising alternative communication method proven to work on high-end devices. However, large-scale adoption requires VLC to also work on everyday machines. Yet...
bachelor thesis 2022
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Kemmeren, Eric (author)
Visible Light Communication (VLC) has seen drastic improvements in recent years, one approach uses active light sources like LEDs, switching them at hight speeds to send data. Another approach uses the fundamental characteristics of liquid crystals (birefringence and thickness) to transmit data to a single pixel receiver. These characteristics...
bachelor thesis 2022
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Dalgic, O. (author), Puccinelli, Daniele (author), Zuniga, Marco (author)
Advances in Visible Light Communication are enabling novel Internet of Things applications. Going forward, we expect that LED-to-Camera links will enable a wide range of body-centric computing applications. Up until now, most LED-to-Camera studies have been following a deploy-and-test approach instead of a principled methodology. This ad-hoc...
conference paper 2022
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Chavez Tapia, M.A. (author), Xu, M. (author), Wu, Zehang (author), Zuniga, Marco (author)
A recent development in wireless communication is the use of optical shutters and smartphone cameras to create optical links solely from ambient light. At the transmitter, a liquid crystal display (LCD) modulates ambient light by changing its level of transparency. At the receiver, a smartphone camera decodes the optical pattern. This LCD-To...
journal article 2022
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YAN, YIXUN (author)
Visible Light Communication (VLC) has gained popularity due to its inherent security as a complementary technology to Radio Frequency (RF) in the last decades to solve the "spectrum crunch'' problem. Meanwhile, The latest IEEE 802.11ah standard, also called WiFi HaLow, offers the range, throughput, and low power consumption that is extremely...
master thesis 2021
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Wu, Zehang (author)
The popularity of various wireless communication applications is crowding the radio spectrum. As an alternative medium, the visible light spectrum is be- ing exploited. Camera-based visible light communication systems are gaining much attention due to the widespread use of smartphones equipped with small embedded cameras. Screens (e.g., liquid...
master thesis 2021
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Wervers, Michel (author)
As more and more devices have become wireless, the traditional Radio Frequency (RF) spectrum has become densely populated. To relieve this pressure,<br/>communication using light, visible light communication (VLC), has been proposed by many researchers. However, not all light sources can be modulated<br/>to transmit information. Therefore, the...
master thesis 2021
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Blokker, Roy (author)
Passive visible light communication (VLC) takes advantage of the pervasive<br/>nature of ambient light in our environment for wireless transmissions. The<br/>design of transmitters in passive VLC predominantly uses Liquid Crystal Displays (LCD’s). While LCD’s are an economical choice with low power consumption, they lack some key properties that...
master thesis 2021
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Blokker, R.J.A. (author), Xu, M. (author), Zuniga, Marco (author)
Passive visible light communication (VLC) takes advantage of the pervasive nature of ambient light in our environment for wireless transmissions. The design of transmitters in passive VLC predominately uses liquid crystal displays (LCDs). While LCDs are an economical choice with low power consumption, they lack some key properties that are...
journal article 2021
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Beysens, Jona (author), Wang, Q. (author), Van Den Abeele, Maxim (author), Pollin, Sofie (author)
In visible light communication (VLC), the quality of communication is primarily dominated by line-of-sight links. To ensure an appropriate link quality anywhere, beamsteering has been proposed where transmitters (TXs) dynamically steer their beams to create beamspots on the users. However, these highly dynamic TXs face the beam tracking...
conference paper 2021
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Ghiasi, S.K. (author), Zuniga, Marco (author), Langendoen, K.G. (author)
To take advantage of Visible Light Communication (VLC) for low-power applications, such as IoT tags, researchers have been developing systems to modulate (backscatter) ambient light using LC shutters. Various approaches have been explored for single-pixel transmitters, but without following a principled approach. This has resulted in either...
conference paper 2021
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Wang, Weizheng (author), Wang, Q. (author), Zhang, J. (author), Zuniga, Marco (author)
Positioning based on visible light is gaining significant attention. But most existing studies rely on a key requirement: The object of interest needs to carry an optical receiver (camera or photodiode). We remove this requirement and investigate the possibility of achieving accurate positioning in a passive manner—that is, without requiring...
journal article 2020
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Cui, Minhao (author), Wang, Q. (author), Xiong, Jie (author)
Visible Light Communication (VLC) is a promising technology for future wireless communications. By modulating the visible light - -that has about 10,000x larger frequency band than that of radios - -to transmit data, VLC has the potential to provide ultra-high-speed wireless connectivities. However, it also has limitations such as i)...
conference paper 2020
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