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

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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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