Mar 6, 2017: Fraunhofer IPMS has developed point-to multi-point-capable Li-Fi modules for optical wireless communication, which is more energy efficient. Li-Fi is believed to be more stable and secure than Wi-Fi, as the direct optical path is not affected by the number of users.
Fraunhofer IPMS’ optical wireless communication requires only 15% energy, and is about 10 times faster due to data rate of 1Gigabit per second at insignificant bit error rates (<10 -9).
Earlier it was not possible for a number of users to function at the same time in the same spot as inter-modules would interfere within the same link. This issue has been resolved by Fraunhofer IPMS, and it will demonstrate the technology that allows point-to-multi-point communication, at the 2017 Optical Fiber Communication (OFC) Conference and Exposition, which will tale place in Los Angeles from March 21-23, 2017.
Fraunhofer IPMS will demonstrate a Li-Fi HotSpot as a prototype for optical wireless communication for distances up to 10 m. It will also present its “GigaDock” technology for smaller distances (with bandwidths of up to 12.5 Gigabits per second).
GigaDock replaces stationary cable connections in highly automated production environments. The send and receive module are driverless, and combines an optical transceiver and a protocol controller with a Gigabit-Ethernet interface.
Fraunhofer Development leader Dr Alexander Noack explains, “Our solution uses light in the infrared range as a wireless transmission medium. While physical obstacles such as thick walls only weaken radio signal performance allowing attackers to gain sensitive company data via a receiver within range of the radio signal, our Li-Fi network provides security against hacking attacks even in closed rooms.”