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Proceedings Paper

Research on field of view of optical receiving antenna based on indoor visible light communication system
Author(s): Mingguang Gao; Tian Lan; Tao Zhao; Yilun Zhang; Zhenghua Cui; Guoqiang Ni
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Paper Abstract

Optical receiving antenna is usually positioned before the detector of an indoor visible light communication (VLC) system in order to collect more optical energy into the detector. Besides optical gain of the antenna, the field of view (FOV) plays also an important role to the performance of a VLC system. In this paper, the signal noise ratio (SNR) and inter-symbol interference (ISI) versus FOV of the antenna are simulated via Line-of-Sight (LOS) and non-Line-of-Sight (NLOS) links within a room with a size of 5m × 5m × 3m. Results show that, the blind area appears while the FOV is less than 40 deg. and the SNR reduces as FOV increases and keeps small when FOV is more than 70 deg.. Furthermore, the average power of ISI rises with the increase of FOV, and the rising trend is relatively moderate when FOV is below 50 deg., while there is a rapid increase between 50 deg. and 70 deg. and finally tends to be stable after 70 deg. Therefore, it is practical to determine the FOV of the optical receiving antenna in the scope of 40 to 50 deg. based on the installment of LED lights on the ceiling here so as to avoid the blind area, attain high SNR, and reduce the influence of ISI. It is also worthwhile in practice to provide an identifiable evidence for the determination of FOV of the optical antenna.

Paper Details

Date Published: 5 August 2015
PDF: 8 pages
Proc. SPIE 9619, 2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing, 96190I (5 August 2015); doi: 10.1117/12.2193298
Show Author Affiliations
Mingguang Gao, Beijing Institute of Technology (China)
Beijing Key Lab. for Precision Optoelectronic Measurement Instrument and Technology (China)
Tian Lan, Beijing Institute of Technology (China)
Beijing Key Lab. for Precision Optoelectronic Measurement Instrument and Technology (China)
Tao Zhao, Beijing Institute of Technology (China)
Yilun Zhang, Beijing Institute of Technology (China)
Zhenghua Cui, National Univ. of Defense Technology (China)
Guoqiang Ni, Beijing Institute of Technology (China)


Published in SPIE Proceedings Vol. 9619:
2015 International Conference on Optical Instruments and Technology: Optoelectronic Devices and Optical Signal Processing
Yi Dong; Chao Lu; Jian Wu; Zhaohui Li, Editor(s)

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