水下无线光MIMO链路空间信道建模

doi:10.11959/j.issn.1000-0801.2023109

Abstract

Abstract:

Underwater wireless optical communication (UWOC) has been widely used in the construction of underwater communication network for the advantages of high data rates, small latency, high flexibility and scalability.However, due to the absorption and scattering effects of seawater, the spatial characteristics of UWOC links have not been studied extensively, especially in multiple-input multiple-output (MIMO) scenario.A linear array MIMO UWOC link geometry was considered and a weighted exponential function polynomial (WEFP) model was proposed to characterize the photon irradiance distribution at the receiving plane of general MIMO UWOC links with arbitrary numbers of light sources.Numerical results suggest that the proposed WEFP model fits well with the results of Monte Carlo simulations in turbid water environment.

Key words: underwater wireless optical communication, multiple-input multiple-output, irradiance, Monte Carlo simulation

CLC Number:

TP393

Xiaoqian LIU, Xinke TANG, Yuhan DONG. Spatial channel modeling for MIMO underwater wireless optical links[J]. Telecommunications Science, 2023, 39(5): 48-56.

Figures/Tables 6

References 21

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水质	a/m^-1	b/m^-1	c/m^-1	g
沿岸水	0.179	0.219	0.398	0.947 0
港口水	0.295	1.875	2.170	0.919 9

水质	MIMO设置	链路距离/m	RMSE
港口水	2×2	5	4.736×10^-4
		10	1.982×10^-4
		15	1.288×10^-4
	4×4	5	6.024×10^-4
		10	5.120×10^-4
		15	1.990×10^-4
	6×6	5	5.805×10^-4
		10	2.789×10^-4
		15	1.654×10^-4
沿岸水	2×2	30	4.238×10^-4
		35	3.883×10^-4
		40	1.978×10^-4
	4×4	30	5.563×10^-4
		35	3.532×10^-4
		40	1.621×10^-4
	6×6	30	6.228×10^-4
		35	2.605×10^-4
		40	1.886×10^-4

Spatial channel modeling for MIMO underwater wireless optical links

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