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Leti partners LUCIOM to develop high-data-rate LiFi transceivers

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By eeNews Europe

With this technology, LUCIOM plans to offer by mid-2015 one of the first high-data-rate bidirectional light-fidelity, or LiFi, products that can work with different LED lighting sources, and on mobile devices.

Earlier in 2014, Leti demonstrated a new prototype for wireless high-data-rate Li-Fi transmission. The technology employs the high-frequency modulation capabilities of LED engines used in commercial lighting. It achieves throughputs of up to 10Mb/s at a range of three meters, suitable for HD video streaming or Internet browsing, using light power of less than 1,000 lumens and with direct or even indirect lighting. The Leti technology will be adapted to meet the needs of LUCIOM’s transceivers.

LUCIOM’s technology allows the convergence of light-emitting diodes with the worldwide proliferation of mobile devices to make any LED lighting source a high-speed data transmitter that is both secure and environmentally friendly.

Based on integrated circuits and transceivers, the technology turns LED light sources into positioning beacons, which transmit signals. This allows smartphones and tablets to become LiFi enabled, thanks to a receiver that is implemented in a 3.5 mm audio jack dongle. The compact size of the receiver eases the integration in the device. In addition, the audio remains accessible from the audio interface, even when the LiFi application is launched from a smartphone.

LUCIOM’s technology can be combined with the use of gyro-sensors present in smartphones and tablets to predict movement between two beacons and provide a very accurate position to the user. This way, communication between phones and smart indoor LED lighting can be used inside buildings when GPS technology is no longer effective. The localization application can also be used to provide additional personalized services or information to customers as well as information to the infrastructure manager.

In addition to these indoor-positioning applications, the company is targeting high-data-rate video transfer. The project between Leti and LUCIOM builds on their previous collaboration in which Leti developed an optical over-the-air data link for the company that allows the transmission of true HD video from a lamp to a handheld receiver.

“Our indoor geo-localization could guide shoppers through the maze of large shopping malls to the stores they are seeking, and LED lighting in museums could be used to guide visitors through an enriched tour of the displays and exhibits,” said Michel Germe, CEO of LUCIOM. “Working again with Leti, we will be able to bring new, bidirectional transceivers that enable these applications to market in 2015.”

“LUCIOM was one of the first companies to see that LEDs and LiFi can offer a powerful, secure and highly energy-efficient communications alternative to WiFi,” explained Leti CEO Laurent Malier. “With Leti’s first proof of concept developed earlier this year and its expertise in RF communications, we expect data-transmission rates in excess of 100Mb/s with traditional lighting based on LED lamps.”

Related articles and links:

www.leti.fr

www.luciom.com/en/

News articles:

CEA-Leti reveals high data rate Li-Fi prototype

LED lightbulbs access Internet to pave the way for energy saving LiFi technology

LiFi proposal for massive-MIMO visible-light communication networks


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