Design of Indoor Visible Light Communication PAM4 System

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Pubblicato in:Applied Sciences vol. 14, no. 4 (2024), p. 1663
Autore principale: Liang, Jingyuan
Altri autori: Lin, Shuiqing, Xizheng Ke
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MDPI AG
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024 7 |a 10.3390/app14041663  |2 doi 
035 |a 2930933704 
045 2 |b d20240101  |b d20241231 
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100 1 |a Liang, Jingyuan  |u Faculty of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China; <email>ljy@xaut.edu.cn</email> (J.L.); <email>2210321162@stu.xaut.edu.cn</email> (S.L.) 
245 1 |a Design of Indoor Visible Light Communication PAM4 System 
260 |b MDPI AG  |c 2024 
513 |a Journal Article 
520 3 |a Four-level pulse amplitude modulation (PAM4) can transmit more information in the same symbol interval, effectively improving the information transmission rate and frequency band utilization of visible light communication (VLC). This paper proposes a method for encoding and decoding the PAM4 signal based on FPGA. The PAM4 signal is studied and analyzed under different channel noise models. The research results show that the bit error rate (BER) performance of the PAM4 signal is the best under the additive noise model. The influence of the multiplicative noise on the BER of the PAM4 signal is much greater than that of the additive noise. The BER performance of the PAM4 signal depends on the variance of the noise data. The greater the variance, the worse the BER performance. At the same time, an indoor VLC system based on PAM4 is designed. The simulation results verify that the system scheme is feasible and provides a way to further realize high-speed signal transmission. 
653 |a Design 
653 |a Energy 
653 |a Codes 
653 |a Random variables 
653 |a Communications systems 
653 |a Light 
653 |a Bandwidths 
653 |a Data transmission 
653 |a High speed 
653 |a Field programmable gate arrays 
653 |a Efficiency 
700 1 |a Lin, Shuiqing  |u Faculty of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China; <email>ljy@xaut.edu.cn</email> (J.L.); <email>2210321162@stu.xaut.edu.cn</email> (S.L.) 
700 1 |a Xizheng Ke  |u Faculty of Automation and Information Engineering, Xi’an University of Technology, Xi’an 710048, China; <email>ljy@xaut.edu.cn</email> (J.L.); <email>2210321162@stu.xaut.edu.cn</email> (S.L.); Shaanxi Civil-Military Integration Key Laboratory of Intelligence Collaborative Networks, Xi’an 710126, China; College of Physics and Electronics, Shaanxi University of Technology, Hanzhong 723001, China 
773 0 |t Applied Sciences  |g vol. 14, no. 4 (2024), p. 1663 
786 0 |d ProQuest  |t Publicly Available Content Database 
856 4 1 |3 Citation/Abstract  |u https://www.proquest.com/docview/2930933704/abstract/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch 
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856 4 0 |3 Full Text - PDF  |u https://www.proquest.com/docview/2930933704/fulltextPDF/embedded/7BTGNMKEMPT1V9Z2?source=fedsrch