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http://dx.doi.org/10.7236/JIIBC.2020.20.5.39

Performance Enhancement Technique in Visible Light Communication System for Smart Building  

Seo, Sung-Il (Dept. of Electrical Engineering, Honam University)
Publication Information
The Journal of the Institute of Internet, Broadcasting and Communication / v.20, no.5, 2020 , pp. 39-43 More about this Journal
Abstract
In this paper, we propose the multi-channel interference cancellation algorithm for visible light communication (VLC) in smart building. The VLC system is communication technology using visible rays that come out in Light Emitting Diode (LED) device. It has energy curtailment effect and possible to use in ubiquitous network service applications. When a large number of users communicate indoors, the performance can be reduced due to channel interference. To remove interference, at the first, the minimum mean square error (MMSE) scheme as interference cancellation methods used, and then the successive interference cancellation (SIC) is applied to obtain additional diversity gain and improve interference cancellation performance. Indoor VLC channel model is employed. The performance is evaluated in terms of bit error rate (BER). From the simulation results, it is confirmed that the proposed scheme has better BER performance compared to the previous systems. As a result, the proposed interference cancellation improves the signal quality of VLC systems by effectively removing the channel noise. The results of the paper can be applied to VLC for smart building and general communication systems.
Keywords
Visible Light Communication; Smart Building; Interference Cancellation; Successive Interference Cancellation; Minimum Mean Square Error;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
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