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Intelligent Reflecting Surfaces for Enhanced NOMA-based Visible Light Communications

Abumarshoud, H. , Selim, B., Tatipamula, M. and Haas, H. (2022) Intelligent Reflecting Surfaces for Enhanced NOMA-based Visible Light Communications. In: ICC 2022 - IEEE International Conference on Communications, Seoul, South Korea, 16-20 May 2022, pp. 571-576. ISBN 9781538683477 (doi: 10.1109/ICC45855.2022.9838853)

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Abstract

The emerging intelligent reflecting surface (IRS) technology introduces the potential of controlled light propagation in visible light communication (VLC) systems. This concept opens the door for new applications in which the channel itself can be altered to achieve specific key performance indicators. In this paper, for the first time in the open literature, we investigate the role that IRSs can play in enhancing the link reliability in VLC systems employing non-orthogonal multiple access (NOMA). We propose a framework for the joint optimisation of the NOMA and IRS parameters and show that it provides significant enhancements in link reliability. For example, the bit-error-rate of the NOMA user in the first decoding order is reduced to the order of 10 −6 using the proposed framework compared to an error floor of 10 −2 under fixed power allocation and fixed IRS reflection coefficients. The enhancement is even more pronounced when the VLC channel is subject to blockage and random device orientation.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Abumarshoud, Dr Hanaa and Tatipamula, Dr Mallik
Authors: Abumarshoud, H., Selim, B., Tatipamula, M., and Haas, H.
College/School:College of Science and Engineering > School of Engineering
College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
ISSN:1938-1883
ISBN:9781538683477
Published Online:11 August 2022
Copyright Holders:Copyright © 2022 IEEE
First Published:First published in ICC 2022 - IEEE International Conference on Communications: 571-576
Publisher Policy:Reproduced in accordance with the publisher copyright policy
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