Tag Archives: Li-Fi

We’ve seen the light! Li-Fi is the future of wireless connectivity

Professor Harald Hass started researching this back in 2003, because he saw the upcoming spectrum crunch. He correctly predicted that the lack of radio frequency spectrum for mobile devices would become a real problem. (These days, it’s very difficult to get a connection on some Wi-Fi frequencies if you’re in an urban area.) Around the same time, new LED light technology hit the market, and Hass saw an opportunity to bring the two together. He found a way to use these electronic lighting components for high speed data communication, without interfering with existing radio frequency infrastructures. – Simon Hill, Digital Trends

Li-Fi-like System intended to bring 100-Gbps Speeds Straight to Your Computer

Ariel Gomez, a Ph.D. student in photonics at Oxford University who describes the system in IEEE Photonics Technology Letters says that such indoor optical wireless probably wouldn’t replace Wi-Fi, but if compared with data rates of 3 terabits per second and up, it’s certainly amazing and could find its uses. Wi-Fi, by contrast, can give a maximum top speed of about 7 Gb/s. And with light, there’s no worry about sticking to a limited set of radio frequencies. “If you’re in the optical window, you have virtually unlimited bandwidth and unlicensed spectrum,” Gomez says. – Rahul Kumar Singh, Techworm
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