Fraunhofer HHI presents a further enhanced, modular LiFi system. For the first time, a selective diversity receiver is introduced. In this way, multiple access points will allow a stable connection, e.g. to mobile robots. Plastic optical fiber connections ensure robustness even in strong EMI environments. Since the connection of the LiFi access points can also be a target of interference, Fraunhofer HHI developed an all-optical LiFi system using polymer optical fiber (POF) for networking multiple access points (APs) rather than copper wiring. The use of multiple APs improves coverage and adds spatial diversity to overcome possible blockages of the line-of-sight.

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