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Performance of Interference Mitigation for Visible Light Communi cation System  

Park, In-Hwan (광운대학교 전자융합공학과 유비쿼터스 연구실)
Kim, Yoon-Hyun (광운대학교 전자융합공학과 유비쿼터스 연구실)
Kim, Jin-Young (광운대학교 전자융합공학과 유비쿼터스 연구실)
Publication Information
Journal of Satellite, Information and Communications / v.6, no.1, 2011 , pp. 57-62 More about this Journal
Abstract
The VLC (visible light communication) system is communication technology using visible rays (RGB) that come out in LED device. It is energy curtailment effect and possible in ubiquitous network service applications. Also, VLC system has the above advantage about that the communication throughout the whole room is enabled by high power lighting and lighting equipment with white colored LED which are easy to install and have good outward appearance. However, the signal detection performance for the receiver near the network of transmitter boundary is severely degraded and the transmission efficiency decreased due to the influence of the interference signal from the adjacent networks. In this paper, we propose an interference mitigation method with optical beamforming in VLC systems, and evaluate the reception performance. For the system BER, the proposed optical beamforming transmission demonstrates the performance enhancement compared to the not using the optical beamforming scheme, and up to about 5~6dB SNR performance gain is achieved.
Keywords
visible light communication; optical beamforming; interference mitigation; field of view;
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