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Design and measurement of an indoor Li-Fi system based on 802.3 protocol

In this paper, we report an indoor Li-Fi system operating at 18.9 Mbps by employing access authentication technology and collision avoidance technology. Experiments show that the system maintains high throughput and low bit error rate at different distances, angles, and PHY bit rates. Based on existing ubiquitous lighting devices, the Li-Fi system helps solve the problem of spectrum shortage in wireless communications conveniently.