Energy-Efficient Optimization Design for the Multi-Color LED Based Visible Light Communication Systems under Illumination Constraints
Abstract
:1. Introduction
2. System Model with Channel Crosstalk
3. System Design
3.1. Illumination and Communication Constraints
3.2. Problem Formulation
Algorithm 1: Energy-efficient optimization design. |
Input: loop times , decision threshold Output: minimum transmission power , While (1) Create the initial , satisfying the constraints (2). Let . Set the iteration number . (2) Solve the convex problem Obj. s.t. (3) Update the value: Until , Update the value: End , |
4. Simulation Results
5. Conclusions
Author Contributions
Funding
Acknowledgments
Conflicts of Interest
References
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CCT | Center Point | (x,y) Tolerance Quadrangle | |||
---|---|---|---|---|---|
A | B | C | D | ||
3000 K | (0.4339,0.4033) | (0.4562,0.4260) | (0.4303,0.4173) | (0.4150,0.3821) | (0.4373,0.3893) |
3500 K | (0.4078,0.3930) | (0.4303,0.4173) | (0.4003,0.4035) | (0.3895,0.3709) | (0.4150,0.3821) |
4000 K | (0.3818,0.3797) | (0.4003,0.4035) | (0.3737,0.3880) | (0.3671,0.3583) | (0.3895,0.3709) |
4500 K | (0.3613,0.3670) | (0.3737,0.3882) | (0.3550,0.3754) | (0.3514,0.3482) | (0.3672,0.3585) |
5000 K | (0.3446,0.3551) | (0.3550,0.3753) | (0.3375,0.3619) | (0.3366,0.3373) | (0.3514,0.3481) |
Parameters | Values |
---|---|
Type of multi-color LED | RAGB LED |
Room size | 5 m × 5 m × 3 m |
LED height | 2.5 m |
Table height | 0.85 m |
FOV | |
Half power angle of LED | |
Irradiance angle | |
Incidence angle | |
Effective detector area of PD | 1 cm |
O/E conversion efficiency | 0.5 A/W |
P/F conversion efficiency | 20 lm/W |
minimum transmission power | 1 W |
maximum transmission power | 10 W |
SINR requirement | 10 dB |
Noise variance | W |
R 664 nm | |
A 594 nm | |
Peak wavelength of each color | G 538 nm |
B 465 nm |
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Zuo, Y.; Zhang, J. Energy-Efficient Optimization Design for the Multi-Color LED Based Visible Light Communication Systems under Illumination Constraints. Appl. Sci. 2019, 9, 1. https://doi.org/10.3390/app9010001
Zuo Y, Zhang J. Energy-Efficient Optimization Design for the Multi-Color LED Based Visible Light Communication Systems under Illumination Constraints. Applied Sciences. 2019; 9(1):1. https://doi.org/10.3390/app9010001
Chicago/Turabian StyleZuo, Yu, and Jian Zhang. 2019. "Energy-Efficient Optimization Design for the Multi-Color LED Based Visible Light Communication Systems under Illumination Constraints" Applied Sciences 9, no. 1: 1. https://doi.org/10.3390/app9010001