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• W2898856887 abstract "Multiple-input multiple-output (MIMO) technology as an efficient approach to improve the transmission rate in visible light communication (VLC) has been well studied in recent years. In this paper, we focus on the MIMO VLC system using multi-color LEDs in the typical indoor scenario. Besides the correlation of the MIMO channel, the multi-color crosstalk interference and quadrangle chromaticity region are also considered to increase the practicality of this system. With the constraints of power, amplitude and chromaticity, an iterative algorithm to minimize mean-squared-error (MSE) is proposed to jointly design the precoder and equalizer. Our proposed algorithm provides an effective method to get the optimal precoder by updating optimization variables iteratively. As the equalizer matrix is fixed at each iteration, the main non-convex precoding design problem is transformed into a convex optimization problem and then solved. With the utilization of multi-color LEDs, our proposed precoding method would be promising to promote the practical applications of high-speed indoor optical wireless communication. Simulation results show that our proposed method owns better performance than conventional chromaticity-fixed schemes and zero-forcing precoding designs." @default.
• W2898856887 created "2018-11-09" @default.
• W2898856887 creator A5012603863 @default.
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• W2898856887 date "2018-10-30" @default.
• W2898856887 modified "2023-09-27" @default.
• W2898856887 title "Linear Precoding Designs for MIMO VLC Using Multi-Color LEDs under Multiple Lighting Constraints" @default.
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• W2898856887 doi "https://doi.org/10.3390/cryst8110408" @default.
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