Novel LDPC-OFDM ultraviolet light communication method, system and device

• Main Authors: ZHOU TIANWEI, SHI MINGKAI, YU YONGJI, TANG YANFENG, LI JIAN, WANG ZHUOHAO, ZHU DEPENG
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2024
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention belongs to the technical field of photoelectric information communication methods, and relates to a novel LDPC-OFDM (Low Density Parity Check-Orthogonal Frequency Division Multiplexing) ultraviolet light communication method which specifically comprises the following steps: S1, constructing an LDPC code; s2, carrying out LDPC coding and decoding algorithm optimization; s3, selecting a proper OFDM system model; and S4, combining the LDPC and the OFDM, and verifying that the LDPC-OFDM technology not only can improve the data rate of the ultraviolet light communication system, but also can guarantee the reliability of information transmission. In order to solve the problems of serious inter-symbol interference and low communication rate in wireless ultraviolet light communication, the OFDM technology is adopted to reduce the influence of the inter-symbol interference, so that the communication rate is improved; and finally, the optimized LDPC code is combined with the OFDM technology for use, and t