Boon-Chong Seet of Auckland University of Technology

Underwater Optical Wireless Communication (UOWC) is an emerging technology for realising high-bandwidth wireless networks in underwater environments that can be far more dynamic than terrestrial ones. In this seminar, we share our recent works on mobile UOWC where large beam-divergence emitters are often required when precise node tracking for link alignment is not possible. The high signal attenuation by water along with geometric spreading losses will significantly impact the optical link quality, which calls for careful link establishment including the proper selection of signal wavelengths. Our recent findings on the inherent optical properties (IOPs) of underwater column have challenged the common notion that the blue-green spectrum is most suitable for UOWC; and instead suggested the optimal signal wavelength to be selected based on the water type, link distance, depth of UOWC and magnitude of geometric loss. Further findings on the distribution of coastal IOPs and interference from sunlight led to our proposal of a differential-signaling-based modulation using both long- and short-wavelength transmissions and optical reconfigurable intelligent surface (O-RIS) for UOWC within the euphotic zone.

Biography:

Boon-Chong Seet received his PhD degree in Communications Engineering from Nanyang Technological University, Singapore in 2005. Upon graduation, he joined the Singapore-Massachusetts Institute of Technology Alliance (SMA) Programme as a Research Fellow at the National University of Singapore. Since 2007, he is with the Auckland University of Technology, where he is currently a full professor and heads the Department of EEE. He co-founded the IEEE VTS New Zealand North Chapter where he had served as Vice-Chair and presently as Chair. He is also serving the wider VTS communities around the world through the Distinguished Lecturers programme. His research activities span the fields of info-communication technologies with a focus on sensing, computing, and communication technologies for smart systems. He is the author of nearly 200 publications with a Scopus H-index of 30 and Google H-index of 36. He has supervised over 10 PhD students to completion as the primary supervisor. He is a senior member of IEEE and inducted full member of Sigma Xi.

Email:

Address:四川省成都市郫都区西南交通大学信息科学与技术学院, , Auckland, New Zealand