Analysis of encoding and decoding method of underwater OCDMA system based on decreasing code weight OOC code

The research on underwater multi-user optical communication is an essential step to establish an underwater optical communication network. But most of the current research on underwater optical communication is limited to single-user-to-single-user communication. This paper presents an underwater OCDMA communication system and an encoding and decoding method based on decreasing code weight OOC. Compared with the original OOC, the method can effectively reduce the user code length and improve the system communication rate.