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Correlation-based receiver for optical camera communications
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DOI：10.1364/OE.27.019150.png)
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Abstract
En 中文
In color-multiplexed optical camera communications (OCC) systems, data acquisition is restricted by the image processing algorithm capability for fast source recognition, region-of-interest (ROI) detection and tracking, packet synchronization within ROI, estimation of inter-channel interference and threshold computation. In this work, a novel modulation scheme for a practical RGB-LED-based OCC system is presented. The four above-described tasks are held simultaneously. Using confined spatial correlation of well-defined reference signals within the frame's color channels is possible to obtain a fully operating link with low computational complexity algorithms. Prior channel adaptation also grants a substantial increase in the attainable data rate, making the system more robust to interferences. (c) 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
Keywords:
VISIBLE-LIGHT COMMUNICATION
THRESHOLDING SCHEMES
Journal
IF:
3.3
Papers:
6.1W
Citations:
14.3W