Visibile Light Communication Technology For Data Transmission Using Li-Fi

Hassan, Rosilah; Flayyih, Mamoon Salam; Mahdi, Ahmed; Inn, Arbaiah; Sadeq, Abdulrahman Sameer; Murad, Dina Fitria

doi:10.1109/iccis49240.2020.9257654

Cited by 8 publications

(2 citation statements)

References 12 publications

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“…From hybrid network point of view, there are two main problems which are required to be addressed for load balancing, namely, user association or access point (AP) selection and Resource allocation. In case of hybrid network [9], [10], the issue in AP selection is challenging firstly due tocoverage area of Li-Fi and Wi-Fi network overlaps each other and secondly Wi-Fi covers larger area but have lower capacity, is more prone to overload [11]- [15]. In any performance or festival, we can install or approve such wireless technology systems like Li-Fi for better throughput to avoid the desultory and erratic wire arrangement.…”

Section: Introductionmentioning

confidence: 99%

Li-Fi Music Systems For Concerts

2024

AJEC

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As the wireless communication is growing each day, demand for Light Fidelity abbreviated as Li-Fi has increased that uses visible light, ultraviolet, and infrared spectrums in order to transmit data between devices. It is advantageous over many other communication systems due to its high-speed connectivity that can withstand higher data rates. Furthermore, its environmentally friendly nature and high security offerings make it even better. On the other hand, Li-Fi does not require any licensing from the government for its access, making it cost effective. Starting from the previous generation till the present, elderly as well as youths love to attend concerts. These are even made more harmonious when a good music system is installed. Here comes one of the usability of Li-Fi, where light can be used as a medium to transmit the audio signals from the stage to the amplifier connected speakers placed far away from the stage. This reduces the haphazard wire management making the setup more time and cost efficient. Other technologies like Bluetooth and Wi-Fi only support a range of ten meters where Li-Fi beats them by a huge margin. Additionally lossless and High-Resolution (Hi-Res) audio can be transmitted wirelessly due to its support to higher bandwidth and data rates. In this paper, a study on the Li-Fi technology is done and the same is implemented in an advanced music system for transferring audio data from one place to another using light signal.

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Section: Introductionmentioning

confidence: 99%

Li-Fi Music Systems For Concerts

2024

AJEC

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“…In light of this challenge, visible light communication (VLC) emerges as a compelling alternative for data transmission, boasting advantages such as license-free operation, heightened confidentiality, and cost efficiency [2]. VLC finds increasing applicability across diverse scenarios, encompassing light fidelity (Li-Fi) [3], vehicle-to-vehicle (V2V) communication [4], underwater communication [5], subterranean operations [6], and smart home environments [7]. Notably, Li-Fi implementation of VLC circumvents various limitations inherent in wireless fidelity (Wi-Fi) technologies, including security vulnerabilities, obstructions to signal propagation [8], and radio frequency interference.…”

Section: Introductionmentioning

confidence: 99%

Research on Energy Efficiency Optimization of Visible Light Communication Based on Non-Orthogonal Multiple Access

Wu,

Sun,

Liu

et al. 2024

Electronics

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As a contender in the competitive landscape of next-generation wireless communication technologies, visible light communication (VLC) stands out due to its potential for enhancing transmission rates and spectrum resource utilization. VLC offers various advantages, including license-free operation, high confidentiality, and cost-effectiveness. However, practical implementation faces challenges stemming from the limited modulation bandwidth of light-emitting diodes (LEDs), constraining system capacity and VLC communication rates. To address this limitation, non-orthogonal multiple access (NOMA) emerges as a novel multiple access strategy, particularly suitable for enhancing the capacity and communication rates of downlink VLC systems through power multiplexing. This paper delves into the energy-efficient design of joint LED association and power allocation (LA–PA) for downlink NOMA-based VLC systems. Through an analysis of channel capacity, we transform the non-convex energy-efficient optimization model, accounting for signal non-negativity, per-LED optical power constraints, and user rate constraints, into a convex form. Subsequently, we propose an iterative power allocation algorithm to attain solutions for the optimization problem with pre-established LED associations. Furthermore, we derive a feasibility condition for an LED association, considering signal non-negativity, per-LED optical power constraints, power constraints for successive interference cancellation (SIC), and channel gain between transceiver signals. This condition identifies feasible LEDs capable of maximizing energy efficiency (EE) when combined with the aforementioned power allocation algorithm. Finally, we illustrate the superiority of the joint LA–PA scheme in terms of the EE, transmission reliability, and transmission capacity performance gain over NOMA in the context of VLC.

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