The Role of LiFi in 6G

We will review the current trends in 6G. In this context will showcase the opportunities for optical wireless communications in general and LiFi in particular. We will provide examples of ongoing activities as part of the new 6G research platform in the UK: PlaTform DrIving The UltimAte CoNnectivity (TITAN) on the future network of networks (NoN). TITAN is a consortium of 16 universities in the UK.

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High Bandwidth LiFi Connections with high efficiency data transfers

A unique compound semiconductor structure using VCSELA (vertical cavity surface emitting laser arrays) offers record performance for speed, optical power and low SWaPC. The chip produces low coherent light in a single channel <1mm with ~0.5W and clocked at 25Gbps. The wavelength non coherence has scintillation mitigation properties enabling it to travel farther through the atmosphere. The chip can be produced in high volumes for a low fabrication cost.

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Very High Data Rate Optical Wireless Communication with Micro Organic LED

We present a broadband free space light communication using high-speed micro organic light emitting diode (OLED) as transmitter. We report first the design and bandwidth measurements of innovative OLEDs whose size are in the range of tens of micrometres. For OLEDs with reduced active area such as 40 µm x 40 µm, a cut-off frequency up to 345 MHz is reached. Then a free-space optical wireless link is build based on these high-speed micro-OLED. Using Direct Current Optical-Orthogonal Frequency Division Multiplexing) with adaptive bit and energy loading, we achieve a data rate of 2.85 Gb/s.

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LiFi in space

LiFi, short for Light Fidelity, is a wireless communication technology that uses visible light instead of radio waves to transmit data. LiFi is based on the principle of Visible Light Communication (VLC), where LED lights are used as transmitters to send data to a receiver, which is typically a photodiode.

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