We present a novel receiver-based interference reduction mechanism for Vehicular Visible Light Communication (V-VLC). V-VLC, in combination with Radio Frequency (RF)-communication, is a technology that is promising to enable a reliable communication link for a number of Intelligent Transportation Systems (ITS) applications such as cooperative driving. Both technologies complement each other to overcome technology-dependent limitations. Particularly, V-VLC is drawing attention as it is able to provide rather high capacity links. Nevertheless, it was observed that V-VLC suffers from interference caused by ambient light as well as modulated light sources, for instance LED signage. To overcome this barrier, we propose a system that makes use of the Line of Sight (LOS)-characteristic and imaging optics. More precisely, we are using a spatial light modulator in the form of a Liquid Crystal (LC)-panel to spatially filter interference and ambient light, thereby reducing interference to a minimum. We built and tested a photodiode-based receiver for V-VLC and, validated by simulations and measurements, we demonstrate the capability of the system.
Optical Interference Reduction with Spatial Filtering Receiver for Vehicular Visible Light Communication
01.10.2019
2490141 byte
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
VISIBLE LIGHT COMMUNICATION RECEIVER, MOVING BODY, AND VISIBLE LIGHT COMMUNICATION SYSTEM
Europäisches Patentamt | 2017
|Europäisches Patentamt | 2022
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