Line of sight model for visible light communication using Lambertian radiation pattern of LED

Bhalerao, Manoj V.; Sumathi, M.; Sonavane, S. S.

doi:10.1002/dac.3250

Cited by 23 publications

(11 citation statements)

References 13 publications

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“…Bhalerao et al suggested a line of site model by using Lambertian pattern of LED in which they analyzed power distribution of white LED source with a photodiode as a receiver in a room. is investigation completely depends upon the half-power angle of the LED source with the field of view of photodetector and mode number of radiation lobe [19]. Wang et al developed a new theory for the analysis of received power distribution in a generalized indoor VLC system.…”

Section: Previous Workmentioning

confidence: 99%

“…e last one is LED sources completely work under the Lambertian radiation Pattern phenomenon. Practically, it is not a compulsion that LEDs follow LRP, e.g., Phosphor-coated multichip LED does not pursue the Lambertian model for the reproduction of luminous intensity pattern [19].…”

Section: Vlc System Modelmentioning

confidence: 99%

“…e optimum value of the K(λ) function is 673 lm W −1 achieved at a wavelength of about 555 nm [19]. Related to Spectral Luminous Efficacy, Spectral Luminous Efficiency of radiant flux V(λ) is defined as the ratio of luminous efficacy at a certain wavelength with the value of the maximum luminous efficacy.…”

Section: Signal Transmissionmentioning

confidence: 99%

See 2 more Smart Citations

Lambertian Luminous Intensity Radiation Pattern Analysis in OLOS Indoor Propagation for Better Connectivity

Vaishali¹,

Sancheti

Nandal

et al. 2022

Wireless Communications and Mobile Computing

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This paper illustrates the impact of wavelength on the Optical Line of sight (OLOS) link working in the Visible Light Communication (VLC) spectrum. The extension of work is based on previous outcomes given by researchers. It has been elaborated with different determinants based on the color factor of LED available in the Visible Light (VL) spectrum. In the modern world, Light Emitting Diodes (LEDs) are prevailing the market as a light source, which is dominantly used at homes and workplaces. The designed VLC system includes LED as a transmitter, which is used as a higher source of brightness and provides both illuminations and data communication. Solid-state lighting characteristic shows the electroluminance capability of high brightness LEDs. Within few years, the luminous efficacy of LED is exponentially increasing from the range of less than 0.1 lm/W to over 230 lm/W with a huge lifetime of around 100,000 h. MATLAB is used to simulate a VLC link between LEDs (operated at different wavelengths) and photodetector. We present here the performance analysis of Lambertian Luminous Intensity radiation pattern (LLIRP) generated by different colors of LED for a clear OLOS model with different Spectral Luminous Efficiency at photonic vision. A designed system model of VLC supports short links present in indoor room conditions with better connectivity.

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Section: Previous Workmentioning

confidence: 99%

Section: Vlc System Modelmentioning

confidence: 99%

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Lambertian Luminous Intensity Radiation Pattern Analysis in OLOS Indoor Propagation for Better Connectivity

Vaishali¹,

Sancheti

Nandal

et al. 2022

Wireless Communications and Mobile Computing

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“…Lambertian radiant intensity is featured in the LED is known as Lambert's emission law optics [10]. The law stated that the radiant intensity or luminous intensity observed from an ideal diffusely reflecting surface or ideal diffuse radiator is directly proportional to the cosine of the angle 0 between the direction of the incident light and the surface normal.…”

Section: Simulation Designmentioning

confidence: 99%

Performance Evaluation on Single-Input Single-Output and Multiple-Input Single-Output Technique in Visible Light Communication

Harum¹

2020

IJATCSE

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Visible Light Communication has been pointed as one of promising technique to replace radio frequency transmission for indoor environment due to its capability to provide a high data rate transmission. In VLC, a signal is transmitted using light produced by an LED at the transmitter and received by photodiode at receiver side. MIMO is one of the techniques that are used in wireless transmission to enhance transmission performance instead of using SISO transmission, where SISO refers to single transmitter antenna with single receiver antenna, while MIMO refers to multiple transmitter antenna and multiple receiver antenna. In VLC, SISO refers to single LED and single detector, where MIMO refers to multiple LED and multiple detectors. Besides, in VLC another technique that can be used is MISO, while multiple LED in transmitter and single detector in receiver. In this project, we evaluate performance of SISO and MISO in VLC within an indoor environment using Matlab. The performance evaluation criteria that we evaluate are based on area incidence angle, LED coverage, distance between lights and total received power

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“…The viewing angle of the transmitting LEDs can be increased to increase the uniformity of illumination 13,14 . Moreover, it has been reported that smaller field of view (FOV) of receiver leads to more blind spots over the receiving plane and larger FOV makes receiver more susceptible to noise, hence it needs to be chosen wisely for practical applications 15–18 . The channel modeling is also very important for designing an effective VLC system and analyzing its performance 4,19 .…”

Section: Introductionmentioning

confidence: 99%

Quantitative analysis of different LED lamp configurations in indoor VLC system

Priyanka

Singh

et al. 2021

Int J Communication

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Summary In this article, an indoor environment of 5 × 5 × 3 m3 dimensions is considered and a total of nine LED lamps are installed at the ceiling in a symmetrical pattern. The inter‐spatial separation between LED lamps is varied to achieve the dual purpose of lighting and communication services. The multipath channel impulse response for distinct receiver locations is also calculated under line‐of‐sight (LOS) and non‐line‐of‐sight (NLOS) channel conditions. Several performance parameters, that is, illumination uniformity, received power fluctuations, root‐mean‐delay spread (RMDS), are evaluated to estimate the performance of the proposed system. The results show that spatial separation of 1.5 m between the LED lamps outperforms the other considered spatial separations, and the error‐free data transmission rate for the proposed system comes out to be about 40 Mbps across the entire receiver plane. Furthermore, an RGB image is transmitted at 40 Mbps and the received image quality is estimated in terms of image quality parameter, that is, structure similarity index (SSIM) over the receiver plane. The results outlined that the received image shows 100% similarity with the transmitted image, and thus, the proposed system can be effectively deployed in practical indoor environments.

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Line of sight model for visible light communication using Lambertian radiation pattern of LED

Cited by 23 publications

References 13 publications

Lambertian Luminous Intensity Radiation Pattern Analysis in OLOS Indoor Propagation for Better Connectivity

Lambertian Luminous Intensity Radiation Pattern Analysis in OLOS Indoor Propagation for Better Connectivity

Performance Evaluation on Single-Input Single-Output and Multiple-Input Single-Output Technique in Visible Light Communication

Quantitative analysis of different LED lamp configurations in indoor VLC system

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