Signal Characterization and Achievable Transmission Rate of VLC Under Receiver Nonlinearity

Xiaona Liu; Chen Gong; Difan Zou; Zunaira Babar; Zhengyuan Xu; Lajos Hanzo

doi:10.1109/ACCESS.2019.2943051

IEEE Access (Jan 2019)

Signal Characterization and Achievable Transmission Rate of VLC Under Receiver Nonlinearity

Xiaona Liu,
Chen Gong,
Difan Zou,
Zunaira Babar,
Zhengyuan Xu,
Lajos Hanzo

Affiliations

Xiaona Liu: The Future Network of Intelligence Institute, The Chinese University of Hong kong, Shenzhen, China
Chen Gong: ORCiD; Department of Electrical Engineering and Information Science, University of Science and Technology of China, Hefei, China
Difan Zou: Department of Computer Science, University of Los Angeles, California, CA, USA
Zunaira Babar: School of Electronics and Computer Science, University of Southampton, Southampton, U.K.
Zhengyuan Xu: Department of Electrical Engineering and Information Science, University of Science and Technology of China, Hefei, China
Lajos Hanzo: ORCiD; School of Electronics and Computer Science, University of Southampton, Southampton, U.K.

DOI: https://doi.org/10.1109/ACCESS.2019.2943051
Journal volume & issue: Vol. 7
pp. 137030 – 137039

Abstract

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Strong ambient light and the resultant photoelectric conversion saturation of an avalanche photo diode (APD) may signficantly deteriorate the received signal in visible light communication (VLC) systems. Hence, in this paper we characterize the signal received from an APD under strong ambient light based on our experimental data. To illustrate the phenomenon of APD saturation, we investigate the transmission rate and analyze the link budget. In order to achieve dimming control, we then conceive a unary-coded VLC system for maintaining the user-defined dimming level. We calculate both the upper and lower bounds of the achievable transmission rate of the unary-coded VLC system.

Published in IEEE Access

ISSN: 2169-3536 (Online)
Publisher: IEEE
Country of publisher: United States
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering
Website: https://ieeexplore.ieee.org/xpl/RecentIssue.jsp?punumber=6287639

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