Tutorial Speakers

Abderrahmen Trichili, KAUST, KSA

Mitchell Cox, University of the Witwatersrand, SA

Boon S. Ooi, KAUST, KSA

Mohamed-Slim Alouini, KAUST. KSA

Date/Time: Monday, June 15 - 9:00 - 12:00 PM - Cyprus Time​

Tutorial Tile: A Roadmap for Free Space Optics Communications

Abstract: The objective of the tutorial is to present the recent progress in the field of free space optical communication and how such a technology can enable developing communities to access the ‘’digital opportunity’’. Throughout the tutorial, we will discuss the main propagation and hardware challenges for FSO systems, including those employing structured light beams. We will also present the possible mitigation strategies of propagation effects and discuss their practicality. We will further give insights on our experimental work on how to potentially use structured light beams beyond laboratory test benches to establish real-world outdoor FSO communications.  Finally, we will identify open problems and provide future research directions.                                                                                

Chadi Assi, Canada

Mohamed Amine Arfaoui, Canada

Date/Time: Monday, June 15 - 14:00 - 17:00 - Cyprus Time​

Session Link: https://lau.webex.com/lau/j.php?MTID=m09ea779a09a8a6a3911bad291174b3ac

    • Meeting number: 163 620 4301
    • Password: kkRmcG3cC68

Tutorial Title: Opportunities, Challenges and Layered Architecture of VLC Systems: Towards a Practical Design for LiFi Networks

Abstract: Due to the dramatic increase in high data rate services, radio-frequency (RF) spectrum is getting
too crowded to handle this increasingly high demand. In order to meet the requirements of beyond fifth-generation (5G) networks, researchers from both academia and industry are exploring advanced transmission techniques, new network architectures and higher frequency bands such as the visible light band. Visible light communication (VLC) is an emerging wireless communication technology that exploits the visible light frequency band and the light sources for both illumination and data communication purposes. VLC has been introduced as a promising
solution for beyond 5G and that has recently gained a lot of interest among industrial and academic
communities, owing to the large unexploited spectrum, which translates to significantly high data rates. Another reason behind such an interest resides in the relatively simple deployment of VLC. However, before a real deployment of VLC systems, there is a persistent need to establish its fundamental limits and extract design guidelines to build efficient VLC systems.
Indeed, due to different propagation channels and different transmit constraints, RF communications
and VLC are fundamentally quite different. As a result, the performance analysis and the system design must be re-investigated in the VLC context due to its different propagation environments and operating constraints.
The objective of this tutorial is to provide the audience with the necessary knowledge and tools to contribute to the development of VLC networks, focusing on physical-layer solutions. Through this tutorial, the audience will learn the necessary knowledge to work in the cutting-edge research field of VLC. First, as a review, VLC channel models will be surveyed, which provide fundamentals and guidelines for VLC systems. As the main focus of this tutorial, the fundamentals of VLC technology will be developed, including capacity analysis (with and without secrecy constraints), modulation schemes, signals processing and multiplexing, multiple access techniques and physical layer security. Moreover, the interaction between the physical layer and the upper layer will be analyzed in the VLC context. Then, based on the provided materials,
some conclusions about the design guidelines of VLC systems will be presented. This will make researchers acquainted with these results which can be very useful for better analysis and understanding of VLC in the future. Finally, some future research directions and some discussion about the application of VLC technology in outdoor environments will be provided.                          

Dr. Chadi Assi (IEEE Fellow) is currently a Professor at Concordia University, Montreal, Canada, where he holds a Tier I University Research Chair. He received his B.Eng. degree from the Lebanese University, Beirut, in 1997 and the Ph.D. degree from the Graduate Center, City University of New York, NY, in April 2003. Before joining Concordia, he was a visiting scientist for one year (2002-2003) at Nokia Research Center, Boston, working on quality-of-service in optical access networks. Dr. Assi received the prestigious Mina Rees Dissertation Award from the City University of New York in August 2002 for his research on wavelength-division-multiplexing optical networks and lightpath provisioning. He held a Tier II university chair at Concordia from 2012-2017 in the area of wireless networks.

Dr Assi is on the Editorial Board of the IEEE Communications Surveys and Tutorials, and serves as an Associate Editor for the IEEE Transactions on Vehicular Technology, IEEE Transaction on communications, IEEE Transactions on Mobile Computing and IEEE Transactions on Network and Service Management. He served on the editorial board of various other journals: Elsevier Computer Networks; IEEE Communications Letters; Elsevier Computer Communications; Wiley’s Wireless Communications and Mobile Computing. He was a TPC co-chair for various IEEE conferences. His current research interests are in the general areas of network design and modelling, network optimization, network softwarization and network and cyber security.

Mohamed Amine Arfaoui received the B.E. degree in electrical and computer engineering from the École Polytechnique de Tunisie, Tunisia, in 2015, and the M.Sc. degree in information systems engineering from Concordia University, Montreal, QC, Canada, in 2017. He is currently pursuing the Ph.D. degree in information systems engineering with Concordia University, Montreal. His research interests include communication theory, optical wireless communications, visible light communication and physical layer security.