High-Speed Internet ... via Ceiling Lamp

The Fraunhofer Heinrich Hertz Institute HHI has been working on high-speed Internet via ordinary LED light bulbs. Development of components for data transmission over LEDs means that significantly higher bandwidth can now be used in real-time with data throughput rates of potentially up to 3 Gbps. The new components will be presented at ITU 2013.The technology is intended to make it possible to use standard off-the-shelf LED room lights for data transmission. Data rates of up to 800 Mbps were reached by this optical WLAN under laboratory conditions, while a complete real-time system exhibited at trade fairs reached data throughput of 500 Mbps. The newly developed patent protected components have now achieved a transmission rate of over 1 Gbps per single light frequency. As off-the-shelf LEDs mainly use three light frequencies or light colors, speeds of up to 3 Gbps are feasible.Thus far, LEDs could only be used with a bandwidth of around 30 MHz.