We have held a one day intensive workshop on LiFi.

The workshop will provide the basic technical information about the emerging Li-Fi technology. The differences to traditional radio frequency (RF) based wireless communications technologies will be highlighted. The lectures will cover fundamental digital modulation techniques for Li-Fi as well as techniques to achieve full wireless networking including multiuser access and handover indoors and outdoors using existing lighting infrastructure. In this context, you will see how in the future, novel optical attocell and hybrid networks will enable three orders of magnitude higher area spectral efficiency, and learn how Li-Fi elegantly supports the trend of ever smaller cells in wireless communications to improve data coverage and mobile user experience without the need for expensive new infrastructure. You will also see how using LED lights in a room as a base station or access point, data rates in excess of 10 Gbps can be achieved – this is faster than the fastest Wi-Fi in the 60 GHz band, referred to as WiGig.

Syllabus

1) History of Visible Light Communication (VLC)

1.1) Relationships and differences between optical wireless communications (OWC), free space optical (FSO), visible light communication (VLC), and light fidelity (Li-Fi)

1.2) Linkage to infrared communication

2) New Security enabled by Li-Fi

3) LED device basics

 3.1) Dealing with LED non-linearities

 3.2) Optical properties and signal propagation

4) Digital modulation techniques and information rates

5) Channel models                     

6) Detector devices

7) Multiple input multiple output transmission in Li-Fi

8) Throughput in optical attocell networks

9) Li-Fi business cases in lighting industry

The slides of Dr Majid Safari can be downloaded here.

The slides of Prof Harald Haas can be downloaded here.