Research Article
Performance Analysis and Evaluation of Outdoor Visible Light Communication Reception
@INPROCEEDINGS{10.1007/978-3-030-66785-6_27, author={Yiru Wang and Bo Xu and Jian Kang and Cong Qiu and C. Patrick Yue}, title={Performance Analysis and Evaluation of Outdoor Visible Light Communication Reception}, proceedings={Machine Learning and Intelligent Communications. 5th International Conference, MLICOM 2020, Shenzhen, China, September 26-27, 2020, Proceedings}, proceedings_a={MLICOM}, year={2021}, month={1}, keywords={Visible light communication Photo detector and image sensor Outdoor free space optical communication}, doi={10.1007/978-3-030-66785-6_27} }- Yiru Wang
Bo Xu
Jian Kang
Cong Qiu
C. Patrick Yue
Year: 2021
Performance Analysis and Evaluation of Outdoor Visible Light Communication Reception
MLICOM
Springer
DOI: 10.1007/978-3-030-66785-6_27
Abstract
Thanks to the properties of light emitting diodes (LEDs), visible light communication (VLC) technology is very competitive in providing high-speed communication and high-precision positioning services. Compared with indoor systems, outdoor VLC faces more challenges due to the strong ambient light disturbance. In this paper, we evaluate and analyze the performance of outdoor VLC systems by conducting outdoor experiments on VLC systems with two types of receivers. For the image sensor-based VLC system, we measure the hit rate and analyze the captured rolling shutter patterns by image processing methods. For the photo detector (PD)-based VLC system, we observe the received signal by an oscilloscope and add a DC-offset to enhance the performance. The results show that when the image sensor-based VLC system is placed in the sun, it can achieve the maximum hit rate of 55% under the communication distance of about 0.3 m. Besides, the PD-based VLC system with a DC-offset can successfully identify and decode transmitted signals under much longer distance. However, PD-based receiver strictly requires the alignment between the LED and the receiver and is not readily available on mobile devices.
