- document
-
van de Water, Stijn (author)This paper describes the design of an adaptable, low-cost, and energy efficient gesture detection system. The system leverages the ambient light available in the environment to perform Visible Light Sensing (VLS) using powerful Convolutional Neural Networks. The focus lies on designing a system that is capable of robust gesture detection in any...bachelor thesis 2022
- document
-
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
- document
-
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
- document
-
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
- document
-
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
- document
-
Pronk, Paco (author)This study introduces a novel system that leverages three photodiodes and ambient light to identify air-written characters on a resource-constrained device. Through experimentation, suitable methods of data preprocessing, machine learning and model compression were selected to recognize the first 10 characters of the Latin alphabet. The final...bachelor thesis 2023
- document
-
Van 't Hof, S.A. (author), Wensveen, M.H. (author)Leds zorgen voor een revolutie op het gebied van verlichting. Vergeleken met gloeilampen zijn ze meer energiezuinig en kunnen ze sneller schakelen. Dat maakt energie-efficiënte lichtcommunicatie mogelijk. Het onderwerp van ons onderzoek is “communicatie via leds”. Wij passen dit toe in de automatisering van prijsaanduidingen in warenhuizen, door...bachelor thesis 2011
- document
-
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
- document
-
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
- document
-
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
- document
-
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
- document
-
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
- document
-
Zhou, Y. (author), Ibrahim, Aya (author), Muttillo, M. (author), Manganiello, P. (author), Ziar, H. (author), Isabella, O. (author)This paper presents the fundamental study on the relationship between LED light sources and the performance of solar cell as receivers in visible light communication (VLC) links. Here, different colors of LEDs are modulated with a sinusoidal signal, and the bandwidth of the VLC system based on various c-Si PV architectures is characterized at...conference paper 2023
- document
-
Cui, Minhao (author), Wang, Q. (author), Xiong, Jie (author)Visible Light Communication (VLC) is widely considered a promising technology for the coming 6G networks. Recent studies show that a VLC transmitter not only emits visible light signals but also leaks RF signals during the transmission. In this work, we devote effort to harvesting the free leaked RF energy from VLC transmissions. We observe that...conference paper 2023
- document
-
Singh, Jagdeep (author), Wang, Q. (author), Zuniga, Marco (author), Farnham, Tim (author)Visible Light Positioning (VLP) has been prevalent in providing high-precision localization systems in the past decade. However, the commercial availability or usage is still limited primarily due to the requirement of changing the existing lighting infrastructure. In this paper, we propose HueSense, an alternative technique to develop a passive...conference paper 2023
- document
-
de Groot, Lucan (author), Xu, M. (author), Zuniga, Marco (author)We explore a new alternative for drones to gather information from sensors. Instead of using the traditional radio-frequency spectrum, whose broadcast nature makes it more difficult to poll specific objects, we utilize the light spectrum. In our system, the drone carries a light, and flies to an area that it is interested in polling. Only the...conference paper 2023
- document
-
De Vita, Christian (author), Klitis, Charalambos (author), Codreanu, N. (author), Ferrari, Giorgio (author), Sorel, Marc (author), Melloni, Andrea (author), Morichetti, Francesco (author)This work reports on the realization of an amorphous silicon visible-light detector integrated in Si3N4 waveguides. The device is very compact (< 40 μm), has a responsivity of about 10 mA/W and a sensitivity of -40 dBm.conference paper 2022
- document
-
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
- document
-
Sánchez-Rodríguez, D. (author), Alonso-González, I. (author), Sánchez-Medina, J. (author), Ley-Bosch, C. (author), Díaz-Vilarino, L. (author)Indoor localization has gained considerable attention over the past decade because of the emergence of numerous location-aware services. Research works have been proposed on solving this problem by using wireless networks. Nevertheless, there is still much room for improvement in the quality of the proposed classification models. In the last...conference paper 2017
- document
-
Galisteo, Ander (author), Marcocci, Patrizio (author), Zuniga, Marco (author), Mucchi, Lorenzo (author), Guzman, Borja Genoves (author), Giustiniano, Domenico (author)Light-based positioning systems (LPS) are gaining significant attention as a means to provide localization with cm accuracy. Many of these systems estimate the object position based on the received light intensity, and work properly in 'ideal' environments such as large open spaces without obstructions around the light-emitting diode (LED)...conference paper 2020