A generalized multi‐wavelength propagation model for VLC indoor channels using Monte Carlo simulation

Ramírez-Aguilera, Atziry Magaly; Luna-Rivera, J. M.; Guerra, Víctor; Rabadán, José; Pérez‐Jiménez, Rafael; López-Hernández, F.J.

doi:10.1002/ett.3490

Cited by 8 publications

(4 citation statements)

References 42 publications

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“…In [39], [40], Ramirez et al proposed the Monte Carlo Matrix Model and Ray Tracing (M-MMC) technique. Based on the MMC approach, this technique allows the analysis of the channel impulse response as a function of the wavelength with a simplified matrix model.…”

Section: B Vlc Channel Modelsmentioning

confidence: 99%

A Review of Indoor Channel Modeling Techniques for Visible Light Communications

Ramírez-Aguilera

Rivera

Guerra

et al. 2018

2018 IEEE 10th Latin-American Conference on Communications (LATINCOM)

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Visible light communications (VLC) is a technology that uses the unregulated electromagnetic spectrum band between 380 and 780nm which offers an enormous potential of high speed communications for short distances, regardless of radio interference. VLC technology has many useful applications, including smart lighting, high speed data link, communication in hazardous environments, vehicular communications, underwater communications, location based services, etc. Although there is a growing interest on VLC applications, there is still a lack of proper VLC channel models. In this paper, we present a comprehensive survey of modeling techniques for visible light communications with a focus on indoor wireless optical channels. For a better understanding, we select some relevant channel models and compare their characteristics from different aspects.

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Section: B Vlc Channel Modelsmentioning

confidence: 99%

A Review of Indoor Channel Modeling Techniques for Visible Light Communications

Ramírez-Aguilera

Rivera

Guerra

et al. 2018

2018 IEEE 10th Latin-American Conference on Communications (LATINCOM)

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“…Liu et al established an indoor VLC channel model considering the reflectance of different surfaces [5]. Ramirez-Aguilera et al established a universal indoor VLC channel model based on MMCA [6]. Zhao Taifei et al established a Gaussian-like luminescence model for a small-divergence angle transmitter [7].…”

Section: Introductionmentioning

confidence: 99%

Shadow Effect of Human Obstacles on Indoor Visible Light Communication System with Multiple Light Sources

2023

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When the direct visible-light channel is affected by people walking or other obstacles, the shadow effect formed in the receiver space affects communication performance and can even lead to communication interruption. In this paper, two numerical methods for calculating the shadow area of the human body were proposed for an indoor multi-light communication system. The influence of shadows on system performance was analyzed using the mean square errors of illuminance and signal-to-noise ratio, as well as the interrupt probability, as parameters. The results showed that shadows had a great influence on the performance of the visible-light communication system. When the number of light sources was fixed, the shadow effect could be effectively reduced by optimizing the layout of the light sources. These research results can provide a theoretical basis for improving the stability of visible-light communication systems.

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“…However, in [23] the VLC channel was investigated including wavelength-dependent reflectance of materials. In [24], the modified MC ray tracing approach was used for analyzing the CIR as a function of the wavelength using a simplified matrix model. In [25], a three-dimensional (3D) model based on MC algorithm using a CAD software was presented for the VLC system.…”

Section: Introductionmentioning

confidence: 99%

Utilization of an OLED-Based VLC System in Office, Corridor, and Semi-Open Corridor Environments

Chaleshtori

Ghassemlooy

Eldeeb

et al. 2020

Sensors

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Organic light emitting diodes (OLEDs) have recently received growing interest for their merits as soft light and large panels at a low cost for the use in public places such as airports, shopping centers, offices, and train or bus stations. Moreover, the flexible substrate-based OLEDs provide an attractive feature of having curved or rolled lighting sources for the use in wearable devices and display panels. This technology can be implemented in visible light communications (VLC) for several applications such as visual display, data communications, and indoor localization. This article aims to investigate the use of flexible OLED-based VLC in indoor environments (i.e., office, corridor and semi-open corridor in shopping malls). We derive a two-term power series model to be match with the root-mean-square delay spread and optical path loss (OPL). We show that, for OLED positioned on outer-wall of shops, the channel gain is enhanced in contrast to them being positioned on the inner-wall. Moreover, the channel gain in empty environments is higher compare with the furnished rooms. We show that, the OPL for a 10 m link span are lower by 4.4 and 6.1 dB for the empty and semi-open corridors compared with the furnished rooms, when OLED is positioned on outer-wall of shops. Moreover, the channel gain in the corridor is higher compared with the semi-open corridor. We also show that, in furnished and semi-open corridors the OPL values are 55.6 and 57.2 dB at the center of corridor increasing to 87.6 and 90.7 dB at 20 m, respectively, when OLED is positioned on outer-wall of shops.

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A generalized multi‐wavelength propagation model for VLC indoor channels using Monte Carlo simulation

Cited by 8 publications

References 42 publications

A Review of Indoor Channel Modeling Techniques for Visible Light Communications

A Review of Indoor Channel Modeling Techniques for Visible Light Communications

Shadow Effect of Human Obstacles on Indoor Visible Light Communication System with Multiple Light Sources

Utilization of an OLED-Based VLC System in Office, Corridor, and Semi-Open Corridor Environments

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