Lookup NU author(s): Dr Paul Haigh
This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0).
© 2009-2012 IEEE.Visible light communication (VLC) systems are highly constrained by the limited 3-dB bandwidth of light-emitting diodes (LEDs). Analogue pre-equalisers have been proposed to extend the LED's bandwidth at the cost of reduced signal-to-noise ratio (SNR). Compared with the pre-equaliser, the multi-carrier modulation with bit-loading can efficiently use the spectrum beyond the LED's raw 3-dB bandwidth without incuring SNR penalties by employing multiple narrow quasi-flat sub-bands to eliminate the need for equalisation. In this work we show by means of theoretical and experimental investigation that VLC with multi-band carrierless amplitude and phase modulation with bit-loading can outperform VLC with analogue pre-equalisers.
Author(s): Li X, Ghassemlooy Z, Zvanovec S, Perez-Jimenez R, Haigh PA
Publication type: Article
Publication status: Published
Journal: IEEE Photonics Journal
Print publication date: 01/04/2020
Online publication date: 15/01/2020
Acceptance date: 12/01/2020
Date deposited: 28/05/2020
ISSN (electronic): 1943-0655
Publisher: Institute of Electrical and Electronics Engineers Inc.
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