Performance analysis and parameter optimization for intelligent reflecting mirror array-aided visible light communications

Xiao-Di Shi; Li-Hua Hong; Peng-Fei Yu; Jia-Wei Shi; Na Liu; Jin-Yuan Wang

doi:10.1364/JOSAA.461577

Journal of the Optical Society of America A
Vol. 39,
Issue 10,
pp. 1839-1848
(2022)
•https://doi.org/10.1364/JOSAA.461577

Performance analysis and parameter optimization for intelligent reflecting mirror array-aided visible light communications

Xiao-Di Shi, Li-Hua Hong, Peng-Fei Yu, Jia-Wei Shi, Na Liu, and Jin-Yuan Wang

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Xiao-Di Shi, Li-Hua Hong, Peng-Fei Yu, Jia-Wei Shi, Na Liu, and Jin-Yuan Wang, "Performance analysis and parameter optimization for intelligent reflecting mirror array-aided visible light communications," J. Opt. Soc. Am. A 39, 1839-1848 (2022)

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Abstract

The effective deployment of an intelligent reflecting mirror array (IRMA) can enhance channel quality and improve the system performance in visible light communications (VLC) systems. This paper focuses on the performance analysis and parameter optimization of an IRMA-aided VLC system. Initially, the channel gains of both line-of-sight (LoS) link and non-LoS links are analyzed. Then, considering the blockage probability of a LoS link, a theoretical expression of the average bit error rate (ABER) is derived. To further improve the system performance, the optimization problems about the parameters of the IRMA are formulated, and schemes are proposed to solve these problems. Moreover, a kind of hardware implementation of the IRMA is provided. Numerical results verify the accuracy of the derived ABER expression and the effectiveness of the proposed schemes.

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Data underlying the results presented in this paper are not publicly available at this time but may be obtained from the authors upon reasonable request.

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	Channel Gains $H_{L o S}$
	$L = 1$	$L = 2$	$L = 3$
Integral values in Eq. (7)	2.6744	3.1517	4.1073
Approximated values in Eq. (8)	2.6541	3.1275	4.0750
Absolute errors	0.0203	0.0242	0.0323
Relative errors	0.76%	0.77%	0.78%

Parameters	Symbols	Values
Room size ( $m^{3}$ )	$x_{r} \times y_{r} \times z_{r}$	$5 \times 5 \times 3$
Transmitter size ( $m^{2}$ )	$w_{s} \times l_{s}$	$0.01 \times 0.01$
Distance from $S$ to the IRMA (m)	$x_{s}, y_{s}, z_{s}$	0.26, 2.5, 0.5
The position of the IRMA	$x_{0}$	2 m
Distance from $D$ to $\bar{S}$	$y_{d}, h_{d}$	2 m, 3 m
Effective area of the receiver	$A_{D}$	$10^{- 4} m^{2}$
Responsibility of the receiver	$ϖ$	0.54 A/W
Conversion efficiency	$η$	0.44 W/A
Semi-angle of FoV	$φ_{c}$	90 deg.
Amplifier gain	$T$	1 V/A
Diffusive percentage	$r_{d}$	75%
Reflection coefficient	$ρ$	0.8
Refractive index of the lens	$a$	1.5
Standard deviation of the noise	$σ$	1
Number of discrete points	$N_{w}$ , $N_{h}$	10

	Channel Gains $H_{L o S}$
	$L = 1$	$L = 2$	$L = 3$
Integral values in Eq. (7)	2.6744	3.1517	4.1073
Approximated values in Eq. (8)	2.6541	3.1275	4.0750
Absolute errors	0.0203	0.0242	0.0323
Relative errors	0.76%	0.77%	0.78%

Parameters	Symbols	Values
Room size ( $m^{3}$ )	$x_{r} \times y_{r} \times z_{r}$	$5 \times 5 \times 3$
Transmitter size ( $m^{2}$ )	$w_{s} \times l_{s}$	$0.01 \times 0.01$
Distance from $S$ to the IRMA (m)	$x_{s}, y_{s}, z_{s}$	0.26, 2.5, 0.5
The position of the IRMA	$x_{0}$	2 m
Distance from $D$ to $\bar{S}$	$y_{d}, h_{d}$	2 m, 3 m
Effective area of the receiver	$A_{D}$	$10^{- 4} m^{2}$
Responsibility of the receiver	$ϖ$	0.54 A/W
Conversion efficiency	$η$	0.44 W/A
Semi-angle of FoV	$φ_{c}$	90 deg.
Amplifier gain	$T$	1 V/A
Diffusive percentage	$r_{d}$	75%
Reflection coefficient	$ρ$	0.8
Refractive index of the lens	$a$	1.5
Standard deviation of the noise	$σ$	1
Number of discrete points	$N_{w}$ , $N_{h}$	10

Abstract

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Equations (40)

Journal of the Optical Society of America A