Li-Fi Standardization

Sice 2015, the Fraunhofer Heinrich Hertz Institute has been working continuously on the ongoing Li-Fi standardization activities. Compared to the previous IEEE Standard 802.15.7-2011, the current Li-Fi projects IEEE P802.15.13 and P802.11bb introduce a number of new technologies (OFDM, Adaptive Transmission, MIMO, Handover and Relaying) which make Li-Fi similarly powerful like radio-based mobile communication. Technically, both IEEE projects address the same goals but run sequentially. IEEE P802.15.13 (2017-2018) targets specialized industrial applications characterized by small, high-value-added quantities. IEEE P802.11bb (2018-2021) focuses on future mass applications that make each luminare a wireless access point. Every smartphone or IoT device can then access the Internet via the light. For this, additional requirements must be met, such as low cost and low energy consumption. In this way, Li-Fi can be used in traditional mobile networks, such as Wi-Fi and 4G/5G, to further increase of capacity and user numbers.