Optimization of Light Source Layout in Visible Light Communication Using a Modified Genetic Algorithm

Fengtao He; Jie Yu; Jianlei Zhang; Yi Yang; Yayi Yang; Yunzhou Zhu; Xiaobo Wang

doi:10.3788/CJL220885

Chinese Journal of Lasers, Volume. 50, Issue 13, 1306001(2023)

Optimization of Light Source Layout in Visible Light Communication Using a Modified Genetic Algorithm

Fengtao He^1、*, Jie Yu^1、**, Jianlei Zhang^1、***, Yi Yang¹, Yayi Yang¹, Yunzhou Zhu², and Xiaobo Wang²

Author Affiliations

¹School of Electronic Engineering, Xi’an University of Posts and Telecommunications, Xi’an 710121, Shaanxi, China

²Key Laboratory of Underwater Information and Control, China Shipbuilding Industry Corporation 705 Research Institute, Xi’an 710077, Shaanxi, China

show less

Abstract Get PDF(in Chinese)

Figures & Tables(13)

Fig. 1. Indoor VLC system model

Download full size

Fig. 2. Layout scheme

Download full size

Fig. 3. LED array layout in 5 m×5 m×3 m room model

Download full size

Fig. 4. Parameters distribution on receiving plane in 5 m×5 m×3 m room model. (a) Received illuminance; (b) received optical power

Download full size

Fig. 5. Iterative curves of two algorithms

Download full size

Fig. 6. LED array layout in different room models. (a) LED array layout in 3 m×3 m×3 m room model; (b) LED array layout in 7 m×7 m×3 m room model

Download full size

Fig. 7. Received illuminance and received optical power distributions of different room models. (a) Received illuminance of 3 m×3 m×3 m room model; (b) received optical power of 3 m×3 m×3 m room model; (c) received illuminance of 7 m×7 m×3 m room model; (d) received optical power of 7 m×7 m×3 m room model

Download full size

Fig. 8. Received optical power uniformity and received illumination uniformity of different room models

Download full size

Table 1. Parameter settings of indoor VLC system

View table

Table 1. Parameter settings of indoor VLC system

Parameter	Value
LED bead power / $m W$	450
Receiving height $H_{p d}$ /m	0.85
Gain of optical filter $T_{s} (ψ)$	1
Refractive index of optical lens $n_{0}$	1.56
Area of photo-detector A /cm²	1
Concentrator field angle of view $ψ_{c}$ /（°）	80
Photoelectric conversion efficiency / $(A \cdot W^{- 1})$	0.53
Central luminous intensity of LED $I (0)$ /cd	23.81
Wall reflection coefficient $ρ_{c}$	0.7

Table 2. LED parameter value range
View table
Table 2. LED parameter value range
Parameter Value
$x$ $[0, L / 2]$ ，L is side length of ceiling
$y$ $[0, x]$
$M_{L E D}$ $1^{2}, 2^{2}, \dots, 14^{2}$
$Φ_{1 / 2}$ $[20^{\circ}, 80^{\circ}]$

Table 3. LED chip parameters in 5 m×5 m×3 m room model
View table
Table 3. LED chip parameters in 5 m×5 m×3 m room model
LED type Half power angle /（^o） Number of lamp beads X-coordinate /m Y-coordinate /m
$L E D_{1}$ 41.09 16 0.8584 2.4727
$L E D_{2}$ 79.86 25 1.1433 1.4301
$L E D_{3}$ 37.45 25 0.2872 1.2945
$L E D_{4}$ 41.96 36 2.0664 2.4645

Table 4. LED chip parameters of 3 m×3 m×3 m room model
View table
Table 4. LED chip parameters of 3 m×3 m×3 m room model
LED type Half power angle /（^o） Number of lamp beads X-coordinate /m Y-coordinate /m
LED₁ 62.28 16 1.3079 1.3629
LED₂ 33.17 36 1.3015 1.4609
LED₃ 74.96 9 0.6057 0.7863
LED₄ 26.78 14 0.1230 0.3244

Table 5. LED chip parameters of 7 m×7 m×3 m room model
View table
Table 5. LED chip parameters of 7 m×7 m×3 m room model
LED type Half power angle /（^o） Number of lamp beads X-coordinate /m Y-coordinate /m
$L E D_{1}$ 50.23 16 0.2290 0.8505
$L E D_{2}$ 56.72 36 2.9294 3.4664
$L E D_{3}$ 47.91 64 1.3490 3.4118
$L E D_{4}$ 33.82 16 0.6385 1.7112

Tools

Get Citation

Copy Citation Text

Fengtao He, Jie Yu, Jianlei Zhang, Yi Yang, Yayi Yang, Yunzhou Zhu, Xiaobo Wang. Optimization of Light Source Layout in Visible Light Communication Using a Modified Genetic Algorithm[J]. Chinese Journal of Lasers, 2023, 50(13): 1306001

Download Citation

EndNote(RIS)BibTex Plain Text

Set citation alerts for article

Save article for my favorites