On the performance of visible light communication systems with non-orthogonal multiple access

Marshoud, H. , Sofotasios, P. C., Muhaidat, S., Karagiannidis, G. K. and Sharif, B. S. (2017) On the performance of visible light communication systems with non-orthogonal multiple access. IEEE Transactions on Wireless Communications, 16(10), pp. 6350-6364. (doi: 10.1109/TWC.2017.2722441)

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Abstract

Visible light communication (VLC) has been proposed as a promising and efficient solution to indoor ubiquitous broadband connectivity. In this paper, non-orthogonal multiple access, which has been recently introduced as an effective scheme for fifth generation (5G) wireless networks, is considered in the context of VLC systems under different channel uncertainty models. To this end, we first derive a novel closed-form expression for the bit-error-rate (BER) under perfect channel state information (CSI). Capitalizing on this, we then quantify the effect of noisy and outdated CSI by deriving a simple and accurate approximation for the former and a tight upper bound for the latter. The offered results are corroborated by respective results from extensive Monte Carlo simulations and assist in developing useful insights on the effect of imperfect CSI knowledge on the overall system performance. Furthermore, it was shown that while noisy CSI leads to slight degradation in the BER performance, outdated CSI can cause considerable performance degradation, if the order of the users' channel gains change due to the involved mobility.

Item Type:Articles
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Abumarshoud, Dr Hanaa
Authors: Marshoud, H., Sofotasios, P. C., Muhaidat, S., Karagiannidis, G. K., and Sharif, B. S.
College/School:College of Science and Engineering > School of Engineering > Autonomous Systems and Connectivity
Journal Name:IEEE Transactions on Wireless Communications
Publisher:IEEE
ISSN:1536-1276
ISSN (Online):1558-2248
Published Online:11 July 2017

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