Free-Space Optical Fiber Communication System for Rail-Guided Vehicles Using OFDM Modulation

We propose a novel visible light communication system for rail-guided industrial vehicles using orthogonal frequency-division multiplexing (OFDM) modulation. This system implements two types of optical fibers as downlink/uplink communication lines. The purpose of this system is to realize fast real-...

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Bibliographic Details
Main Authors: Ishibashi, Masakazu, Shimizuhira, Wataru, Mieda, Ryosuke, Takizuka, Hiroshi, Haruyama, Shinichiro
Format: Conference Proceeding
Language:English
Subjects:
Downlink
Frequency modulation
industrial vehicle
Integrated optics
leaky optical fiber
light-diffusing optical fiber
OFDM modulation
Optical fiber communication
Optical fibers
optical light communication
Optical modulation
orthogonal frequency-division multiplexing (OFDM)
rail-guided vehicle
scintillation fiber
visible light communication
wavelength-shift fiber
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Summary:We propose a novel visible light communication system for rail-guided industrial vehicles using orthogonal frequency-division multiplexing (OFDM) modulation. This system implements two types of optical fibers as downlink/uplink communication lines. The purpose of this system is to realize fast real-time communication with hand-over functionality, introducing carrier modulation. A downlink distance of 100 m and uplink distance of 30 m were achieved at the primary modulation of 16QAM 1/2. In our previously reported system, only single-channel communication could be performed. However, the system demonstrated in this study can be effectively applied to fast mobile communication with multiple channels by introducing OFDM modulation. Moreover, hand-over functionality can be easily realized by this system.
ISSN:1938-1883
DOI:10.1109/ICC42927.2021.9500835