In this speech, we will introduce our recent efforts on the performance enhancement of underwater optical wireless communication (UOWC) from a physical-layer perspective. Firstly, a novel orthogonal frequency division multiplexing (OFDM) scheme is proposed to address the band limitation issue of practical UOWC systems. Secondly, the channel characteristics of polarization multiplexing (PolM)-based UOWC systems under bubble turbulence are investigated and efficient coding schemes are also applied. Thirdly, spatial division transmission (SDT) techniques with advanced coding schemes are proposed to substantially enhance the performance of UOWC systems under both static and dynamic channel conditions.

Prof. Chen Chen received the B.S. and M.Eng. degrees from the University of Electronic Science and Technology of China, Chengdu, China, in 2010 and 2013, respectively, and the Ph.D. degree from Nanyang Technological University, Singapore, in 2017. He was a Post-Doctoral Researcher with the School of Electrical and Electronic Engineering, Nanyang Technological University, from 2017 to 2019. He is currently a Research Professor with the School of Microelectronics and Communication Engineering, Chongqing University, Chongqing, China. His research interests include optical wireless communication, optical access networks, Internet of Things, and machine learning.