1. School of Engineering, Institute for Digital Communications (IDCOM), The University of Edinburgh, Edinburgh, U.K.
2. Department of Electronic and Electrical Engineering, LiFi Research and Development Centre, University of Strathclyde, Glasgow, U.K.
3. Department of Engineering, Electrical Engineering Division, Centre for Photonic Systems, University of Cambridge, Cambridge, U.K.
4. School of Electronic and Electrical Engineering, University of Leeds, Leeds, U.K.
5. University of Bath, Bath, U.K.