Li-Fi, as coined by Prof. Harald Haas during his TED Global talk is bidirectional, high speed and fully networked wireless communications, like Wi-Fi, using light. Li-Fi is a subset of optical wireless communications (OWC) and can be a complement to RF communication (Wi-Fi or Cellular network), or a replacement in contexts of data broadcasting. See more about Li-Fi
It is going to complete and ready for implementation with the IEEE Spectrum
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