作者：Hongji; Huang; Jinyuan; Wang; Jie; Wan...visiblelightmultiplesymbolerrorrate
摘要：Non-orthogonal multiple access（NOMA） is considered as one of promising ra-dio access techniques for visible light commu-nications （VLC） in next-generation wirelesscommunications systems. In order to providetheoretical support for designing VLC-NO-MA, we derive its analytic expressions for thesymbol error rate （SER）. Specifically, NOMAis first incorporated with appropriate VLC toestablish a VLC-NOMA framework. After-wards, mathematical expressions of the SERfor the VLC-NOMA are developed. Moreover,numerical results are provided carefully todemonstrate that the proposed VLC-NOMAscheme outperforms than state-of-the-art or-thogonal frequency division multiple access（OFDMA） one in terms of SER performance.Finally, relationships between the SER perfor-mance and the number of users, power alloca-tion coefficient and semi-angle are well inves-tigated, which can give us a scientific guide todevise the VLC-NOMA system for achievingbetter SER performance.
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