A 1Mbps Real-Time NLOS UV Scattering Communication System With Receiver Diversity Over 1km

In the nonline of sight (NLOS) ultraviolet (UV) scattering communication, the received signals exhibit the characteristics of discrete photoelectrons due to the extremely large path loss. We design and demonstrate an NLOS UV scattering communication system in this paper, where the receiver-side sign...

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Bibliographic Details
Published in:IEEE photonics journal 2018-04, Vol.10 (2), p.1-13
Main Authors: Wang, Guanchu, Wang, Kun, Gong, Chen, Zou, Difan, Jiang, Zhimeng, Xu, Zhengyuan
Format: Article
Language:English
Subjects:
Communication systems
Detectors
discrete-time Poisson channel
Diversity reception
Non-line of sight (NLOS)
Nonlinear optics
Real-time systems
receiver diversity
Receivers
Scattering
ultraviolet (UV) scattering communication
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Summary:In the nonline of sight (NLOS) ultraviolet (UV) scattering communication, the received signals exhibit the characteristics of discrete photoelectrons due to the extremely large path loss. We design and demonstrate an NLOS UV scattering communication system in this paper, where the receiver-side signal detection is designed based on a discrete-time Poisson channel model. In our system, a laser and multiple photomultiplier tubes are employed as the optical transmitter and detector, respectively. Furthermore, we design algorithms for pulse-counting, synchronization, channel estimation, and LLR computation for hardware realization in field-programmable gate array board. Simulation results are provided to evaluate the proposed system design and specify the system key parameters for real-time implementation. We perform field tests for real-time communication with the transmission range over 1 km, where the system throughput reaches 1 Mbps.
ISSN:1943-0655
1943-0647
DOI:10.1109/JPHOT.2018.2822690