Multi-user High Data Rate Indoor VLC Systems

Abstract

In this paper, we propose, design and evaluate the performance of an angle diversity transmitter (ADT) to achieve high data rate multi-user indoor visible light communication (VLC) systems. Our proposed systems are examined with three different receivers: a wide-field of view (W-FOV) receiver, an angle diversity receiver (ADR) and an imaging diversity receiver (IMDR). A novel algorithm is introduced also to eliminate the multi-user interference that is caused by line of sight (LOS) components, since these have a great impact on VLC systems performance. The effect of multi-user interference, mobility and diffuse reflections are considered in this work. We also investigate the effect of an increase in the number of the users on our proposed systems while achieving a high data rate for each user. Our proposed systems achieve 1 Gb/s for ADT with W-FOV receiver, 2 Gb/s for ADT with ADR and 4 Gb/s for ADT with IMDR with a simple modulation technique (on–off-keying, OOK).

KEYWORDS:

• Angle diversity receiver
• Angle diversity transmitter
• Imaging diversity receiver
• Mobility
• Multiuser interference
• On–off-keying
• Wide-field of view receiver

Additional information

Notes on contributors

Safwan Hafeedh Younus

Safwan Hafeedh Younus received a PhD in electronic and electrical engineering from the University of Leeds, UK, in 2019 Currentlly, he is working as a lecturer in the Communication Department/College of Electronics/Ninevah University. His research interests include performance enhancement techniques for visible light communication systems, visible light communication system design and indoor visible light communication networking.

Aubida A. Al-Hameed

Aubida A Al-Hameed received a BSc in electronic and electrical engineering from the University of Mosul, Iraq, in 2010 and an MSc degree in communication systems from the University of Mosul, Iraq, in 2013. He received his PhD from University of Leeds, Leeds, Iraq in 2019. His research interests include performance enhancement techniques for visible light communication systems, visible light communication system design and indoor visible light communication networking. Email: [email protected]

Jaafar M. H. Elmirghani

Jaafar M H Elmirghani received the BSc (first-class Hons) degree in electrical engineering from the University of Khartoum, Khartoum, Sudan, in 1989 and was awarded all 4 prizes in the Department for academic distinction, the PhD degree in the synchronization of optical systems and optical receiver design from the University of Huddersfield, Huddersfield, UK, in 1994, and the DSc degree in communication systems and networks from the University of Leeds, Leeds, UK, in 2014. He is the director of the Institute of Integrated Information Systems within the School of Electronic and Electrical Engineering, University of Leeds, Leeds, UK. His research interests include optical systems and networks. He is a Fellow of the IET, a Chartered Engineer, and a Fellow of the Institute of Physics. Email: [email protected]