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Entropy Loading Design for the MIMO-OFDM Visible Light Communication System Using the OCT Precoding Technique
Joint Authors
Guo, Xinyue
Zhao, Haimeng
Wang, Wei
Source
Advances in Condensed Matter Physics
Issue
Vol. 2020, Issue 2020 (31 Dec. 2020), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2020-09-19
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
In this paper, an orthogonal circulant matrix transform (OCT) precoding technique is proposed to combine with the entropy loading in the multiple-input multiple-output and orthogonal frequency division multiplexing (MIMO-OFDM) visible light communication (VLC) system where the space-time coding (STBC) is chosen for its robustness to the channel correlation.
Benefitting from the OCT precoding technique, the uniform signal-to-noise ratio (SNR) among all the subchannels can be achieved.
As a result, only one SNR value is required to be fed back, and the same distribution matcher is employed during probabilistic shaping (PS), which means much lower feedback overhead and system complexity than the conventional entropy loading scheme.
Experimental results show that the OCT precoding does not cause the system performance loss where the achievable information rate (AIR) of the proposed system is comparable with the conventional system without precoding.
With an available bandwidth of ∼25 MHz, the proposed scheme can realize the AIR of 50.75 Mb/s at the expense of 0.45% average forward error correction (FEC) overhead (OH).
American Psychological Association (APA)
Guo, Xinyue& Zhao, Haimeng& Wang, Wei. 2020. Entropy Loading Design for the MIMO-OFDM Visible Light Communication System Using the OCT Precoding Technique. Advances in Condensed Matter Physics،Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1126066
Modern Language Association (MLA)
Guo, Xinyue…[et al.]. Entropy Loading Design for the MIMO-OFDM Visible Light Communication System Using the OCT Precoding Technique. Advances in Condensed Matter Physics No. 2020 (2020), pp.1-7.
https://search.emarefa.net/detail/BIM-1126066
American Medical Association (AMA)
Guo, Xinyue& Zhao, Haimeng& Wang, Wei. Entropy Loading Design for the MIMO-OFDM Visible Light Communication System Using the OCT Precoding Technique. Advances in Condensed Matter Physics. 2020. Vol. 2020, no. 2020, pp.1-7.
https://search.emarefa.net/detail/BIM-1126066
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1126066