Real-Time Audio Transmission Using Visible Light Communication

Soh, Mei Yu; Ng, Wen Xian; Zou, Qiong; Lee, Denise; Teo, T. Hui; Yeo, Kiat Seng

doi:10.1109/tencon.2018.8650145

Cited by 8 publications

(5 citation statements)

References 13 publications

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“…Over the last decade, there has been much interest in vehicular VLC system design and there have been a diverse set of research works conducted in this area thus far. VLC-based vehicular networking is a widely researched topic in the vehicular communication and networking communities [3][4][5] . Over the last few years, the interest in vehicular VLC has expanded to overall vehicular system designs and research explorations [14][15][16][17][18] have been cutting across different layers of the open system interconnection (OSI) stack.…”

Section: Led and Camera Based Systemsmentioning

confidence: 99%

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Automotive Visible-Light Communication: Alternative Devices and Systems

Cheng

et al. 2023

Tsinghua Sci. Technol.

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Continuous advancements in visible-light communication (VLC) technology have paved the way for future high-capacity communication links that can simultaneously provide data transmission and illumination. VLC is being accepted as a potential complementary technology in 5G networks, and standardization efforts through IEEE 802.15.7 are on their way. Today, vehicular networking applications have become increasingly complex with tight power and performance requirements. Consequently, devices and systems that can meet diverse vehicular networking applications are in great demand. In this article, we discuss three alternatives for vehicular networking applications in (1) LED-photodiode-based active VLC, (2) VLC with a multicamera array receiver, and (3) passive VLC based on decoding information from optical backscatter. We also present our recent experimental and modeling work using our camera-based and passive VLC prototype implementations.

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Section: Led and Camera Based Systemsmentioning

confidence: 99%

“…Within the last few years, many studies on VLC-based vehicular networking have been published [1][2][3][4][5] . However, these works have been very selective about how the VLC system can be useful in the automotive context and lack clear baseline agreement or standards.…”

Section: Introductionmentioning

confidence: 99%

Automotive Visible-Light Communication: Alternative Devices and Systems

Cheng

et al. 2023

Tsinghua Sci. Technol.

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“…LEDs are extensively used these days in various applications, exemplified in personal cell phones to large commercial advertising display boards. In addition to their significant advantages in the illumination aspect, LEDs could also play an active role in enabling smart city applications, such as the development of visible light communications (VLC), a data communications variant using visible light between 400 and 800 THz (780-375 nm) intended to complement radio frequency (RF) transmissions [3].…”

Section: Introductionmentioning

confidence: 99%

92.5% Average Power Efficiency Fully Integrated Floating Buck Quasi-Resonant LED Drivers Using GaN FETs

et al. 2020

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LEDs are highly energy efficient and have substantially longer lifetimes compared to other existing lighting technologies. In order to facilitate the new generation of LED devices, approaches to improve power efficiency with increased integration level for lighting device should be analysed. This paper proposes a fully on-chip integrated LED driver design implemented using heterogeneous integration of gallium nitride (GaN) devices atop BCD circuits. The performance of the proposed design is then compared with the conventional fully on-board integration of power devices with the LED driver integrated circuit (IC). The experimental results confirm that the fully on-chip integrated LED driver achieves a consistently higher power efficiency value compared with the fully on-board design within the input voltage range of 4.5–5.5 V. The maximal percentage improvement in the efficiency of the on-chip solution compared with the on-board solution is 18%.

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“…LED bulbs are also much more energy efficient and have a longer lifespan compared to other types of light bulbs [1]. Other than providing illumination with great energy savings, LEDs can play a significant role in smart cities, such as in the implementation of visible light communication (VLC) technology, where digital lighting is enhanced to complement radio frequency (RF) transmissions [2][3][4][5][6]. To enable the next generation of smart lighting, it is therefore crucial to explore methods that improve the energy efficiency of current integrated LED technology to reduce such costs.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous Integration of GaN and BCD Technologies

et al. 2019

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Light-emitting diodes (LEDs) are solid-state devices that are highly energy efficient, fast switching, have a small form factor, and can emit a specific wavelength of light. The ability to precisely control the wavelength of light emitted with the fabrication process enables LEDs to not only provide illumination, but also find applications in biology and life science research. To enable the new generation of LED devices, methods to improve the energy efficiency for possible battery operation and integration level for miniaturized lighting devices should be explored. This paper presents the first case of the heterogeneous integration of gallium nitride (GaN) power devices, both GaN LED and GaN transistor, with bipolar CMOS DMOS (BCD) circuits that can achieve this. To validate this concept, an LED driver was designed, implemented and verified experimentally. It features an output electrical power of 1.36 W and compact size of 2.4 × 4.4 mm2. The designed fully integrated LED lighting device emits visible light at a wavelength of approximately 454 nm and can therefore be adopted for biology research and life science applications.

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Real-Time Audio Transmission Using Visible Light Communication

Cited by 8 publications

References 13 publications

Automotive Visible-Light Communication: Alternative Devices and Systems

Automotive Visible-Light Communication: Alternative Devices and Systems

92.5% Average Power Efficiency Fully Integrated Floating Buck Quasi-Resonant LED Drivers Using GaN FETs

Heterogeneous Integration of GaN and BCD Technologies

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