Taifei Zhao, Yao Qu, Shan Xu, Junhu Shao, Jie Zhang. Low-Density Parity-Check Code for Subcarrier Intensity Modulation in Ultraviolet Communication Systems[J]. Laser & Optoelectronics Progress, 2018, 55(12): 120602
- Laser & Optoelectronics Progress
- Vol. 55, Issue 12, 120602 (2018)
Fig. 1. Schematic of prolate-spheroidal coordinates
Fig. 2. Single scattering propagation model of non-line-of-sight ultraviolet (UV) communication system
Fig. 3. Block diagram of UV communication system
Fig. 4. Flow chart of belief propagation decoding algorithm
Fig. 5. Normalized channel impulse response of NLOS UV communication
Fig. 6. Effect of different modulation methods on bit error rate of system
Fig. 7. Effect of setting changes on BER of UV system based on BPSK subcarrier intensity modulation. (a) βT=βR=30°, 60°; (b) θT=θR=10°, 22.5°; (c) r=100, 200 m
Fig. 8. BER performance for different parameters. (a) Different coding efficiencies; (b) different decoding methods
Fig. 9. Bit error rate versus communication distance
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Table 1. Simulation parameters
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