Single Photon Detection Technology in Underwater Wireless Optical Communication: Modulation Modes and Error Correction Coding Analysis

• Published in: Journal of Ocean University of China Vol. 23; no. 2; pp. 405 - 414
• Main Authors: Gai, Lei, Li, Wendong, Wang, Guoyu
• Format: Journal Article
• Language: English
• Published: Heidelberg Science Press 01.04.2024; Springer Nature B.V; Faculty of Information Science and Engineering,Ocean University of China,Qingdao 266100,China
• Subjects: Bit error rate; Coding; Communication; Depolarization; Detection; Earth and Environmental Science; Earth Sciences; Error analysis; Error correcting codes; Error correction; Meteorology; Modulation; Multiplexing; Oceanography; On-Off Keying; Optical communication; Photons; Polarization; Technology; Underwater; Underwater communication; Wireless communications; underwater communication; wireless optical communication; single photon detection; error correction coding; modulation mode; wireless optical com-munication
• ISSN: 1672-5182; 1993-5021; 1672-5174
• DOI: 10.1007/s11802-024-5547-7

This study explores the application of single photon detection (SPD) technology in underwater wireless optical communication (UWOC) and analyzes the influence of different modulation modes and error correction coding types on communication performance. The study investigates the impact of on-off keying (OOK) and 2-pulse-position modulation (2-PPM) on the bit error rate (BER) in single-channel intensity and polarization multiplexing. Furthermore, it compares the error correction performance of low-density parity check (LDPC) and Reed-Solomon (RS) codes across different error correction coding types. The effects of unscattered photon ratio and depolarization ratio on BER are also verified. Finally, a UWOC system based on SPD is constructed, achieving 14.58 Mbps with polarization OOK multiplexing modulation and 4.37 Mbps with polarization 2-PPM multiplexing modulation using LDPC code error correction.