Optical Asymmetric Modulation for VLC Systems

Marshoud, H., Muhaidat, S., Sofotasios, P. C., Imran, M. , Sharif, B. S. and Karagiannidis, G. K. (2018) Optical Asymmetric Modulation for VLC Systems. In: IEEE 87th Vehicular Technology Conference: VTC2018-Spring, Porto, Portugal, 3-6 June 2018, pp. 2577-2465. ISBN 9781538663554 (doi: 10.1109/VTCSpring.2018.8417541)

Abstract

The explosive growth of connected devices and the increasing number of broadband users have led to an unprecedented growth in traffic demand. To this effect, the next generation wireless systems are envisioned to meet this growth and offer a potential data rate of 10 Gbps or more. In this context, an attractive solution to the current spectrum crunch issue is to exploit the visible light spectrum for the realization of high-speed commutation systems. However, this requires solutions to certain challenges relating to visible light communications (VLC), such as the stringent requirements of VLC-based intensity modulation and direct detection (IM/DD), which require signals to be real and unipolar. The present work proposes a novel power-domain multiplexing based optical asymmetric modulation (OAM) scheme for indoor VLC systems, which is particularly adapted to transmit high-order modulation signals using linear real and unipolar constellations that fit into the restrictions of IM/DD systems. It is shown that the proposed scheme provides improved system performance that outperforms alternative modulation schemes, at no extra complexity.

• Item Type: Conference Proceedings
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Imran, Professor Muhammad
• Authors: Marshoud, H., Muhaidat, S., Sofotasios, P. C., Imran, M., Sharif, B. S., and Karagiannidis, G. K.
• College/School: College of Science and Engineering > School of Engineering > Systems Power and Energy
• ISSN: 2577-2465
• ISBN: 9781538663554
• Copyright Holders: Copyright © 2018 IEEE
• Publisher Policy: Reproduced in accordance with the copyright policy of the publisher