Audio multicast by Visible Light Communication for location information for the visually impaired

Adoptante, E. B.; Cadag, K. D.; Lualhati, V. R.; Torregoza, Mark Lorenze; Abad, Alexander C.

doi:10.1109/hnicem.2015.7393226

Cited by 11 publications

(4 citation statements)

References 5 publications

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“…The Li-Fi innovation can resolve this emergency. One of the noble applications involves the multicasting of the audio signals using light communication and then using it to send location information to aid the visually impaired people [12]. Moreover with the help of Li-Fi internet access may be provided in prohibited areas.…”

Section: Discussionmentioning

confidence: 99%

Transmission of Audio signals using Visible Light Communication via LEDs

Dhanmajayulu¹,

Ghorui²,

Chatterjee³

et al. 2019

IJITEE

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With the episodic increase of advancement in technology, wireless communication has become the need of the hour. The rate at which the use of wireless technology is being developed is tremendous. However, with the increase in usage, there has been unfortunately an increase in network complexity. In order to resolve the crisis of radio frequency spectrum, a newly developed technology has been proposed. This technology has been coined as Li-Fi: Light Fidelity. It is a technology, based on Visible Light Communication, which is used to transmit signals and data from one system to another with the help of a Led. The paper proposes a transmission system which will be responsible for transmitting audio signals from one system to another with the help of Li-Fi. Here a light emitting diode acts as the Li-Fi transmitter and photodiode acting as a Li-Fi receiver.The spontaneous switching of the Led enables propagation of signals through a wireless channel and is picked up by the receiving photodiode. The photodiode adhering to its functiontransforms the optical signals into electrical signals and therefore original data is retrieved and transferred. Additionally, with proposition to the system, a comparative study has been delineated with the already existing system.The existing system of networking and communications involve Wi-fi. The emergence and usage of Li-fi is necessary because it offers a substantially similar user experience to Wi-Fi except using the light spectrum. It is essential as it will able to meet up the connectivity demands of future as it is able to unlock unprecedented data and bandwidth.

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Section: Discussionmentioning

confidence: 99%

Transmission of Audio signals using Visible Light Communication via LEDs

Dhanmajayulu¹,

Ghorui²,

Chatterjee³

et al. 2019

IJITEE

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“…Acknowledgment lights in the receiver help multicasting possible and indicate successful transmission. [7] III.…”

Section: IImentioning

confidence: 99%

Visible Light Communication

Surve¹

2019

IJRASET

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This paper attempts to explain the use of Visible light used to carry out communication and list its advantages over classic radio wave communication. Visible Light Communication (VLC) is basically the transmission of data through illumination where the intensity of light is varied in accordance with the data. VLC offers security, high bandwidth, high data rates and negligible interference acting as a complement to radio frequency communication. The proposed system aims to carry out a successful communication between two or more devices using light as a medium. The input data can be any random data which is converted to binary format, encoded and then transmitted. This signal is then picked by a suitable photodiode and decoded so that the user at the receiver end can read the data. This will open a new pathway to implement IOT in day to day use. It will offer a large bandwidth and safe mediums for transmission and reception of data in contrast to RF-based communication.

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“…More concerted efforts in this area are needed to fully explore and use the capabilities of VLC technology for the benefit of those with visual impairments. Examples of preliminary works focused on VLC use in blind persons' assistance can be found in [32][33][34][35]. Although these works emphasize the benefits of VLC and its compliance with visually impaired assistance, their implementation is still at a low Technology Readiness Level (TRL), whereas the experimental results are far from being relevant for real-life utilization.…”

Section: Visible Light Communications and Their Potential In Blind An...mentioning

confidence: 99%

Visible Light Communications-Based Assistance System for the Blind and Visually Impaired: Design, Implementation, and Intensive Experimental Evaluation in a Real-Life Situation

Căilean,

Avătămăniței,

Beguni

et al. 2023

Sensors

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Severe visual impairment and blindness significantly affect a person’s quality of life, leading sometimes to social anxiety. Nevertheless, instead of concentrating on a person’s inability, we could focus on their capacities and on their other senses, which in many cases are more developed. On the other hand, the technical evolution that we are witnessing is able to provide practical means that can reduce the effects that blindness and severe visual impairment have on a person’s life. In this context, this article proposes a novel wearable solution that has the potential to significantly improve blind person’s quality of life by providing personal assistance with the help of Visible Light Communications (VLC) technology. To prevent the wearable device from drawing attention and to not further emphasize the user’s deficiency, the prototype has been integrated into a smart backpack that has multiple functions, from localization to obstacle detection. To demonstrate the viability of the concept, the prototype has been evaluated in a complex scenario where it is used to receive the location of a certain object and to safely travel towards it. The experimental results have: i. confirmed the prototype’s ability to receive data at a Bit-Error Rate (BER) lower than 10−7; ii. established the prototype’s ability to provide support for a 3 m radius around a standard 65 × 65 cm luminaire; iii. demonstrated the concept’s compatibility with light dimming in the 1–99% interval while maintaining the low BER; and, most importantly, iv. proved that the use of the concept can enable a person to obtain information and guidance, enabling safer and faster way of traveling to a certain unknown location. As far as we know, this work is the first one to report the implementation and the experimental evaluation of such a concept.

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Audio multicast by Visible Light Communication for location information for the visually impaired

Cited by 11 publications

References 5 publications

Transmission of Audio signals using Visible Light Communication via LEDs

Transmission of Audio signals using Visible Light Communication via LEDs

Visible Light Communication

Visible Light Communications-Based Assistance System for the Blind and Visually Impaired: Design, Implementation, and Intensive Experimental Evaluation in a Real-Life Situation

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