 Dr. Guangyao Han, Northwestern Polytechnical University
Personal profile: Guangyao Han received the B. Eng. degree in communication engineering from the School of Electrical and Information Engineering, Tianjin University, Tianjin, China, and the M. A. Eng. degree in Electronics and Communication Engineering with a CTI de France certificated Engineering Diploma from Tianjin University International Engineering School, Tianjin, China, in 2012 and 2016 respectively. Following his studies, he obtained his Ph.D. degree in Marine Environmental Science and Technology from the School of Marine Science and Technology, Tianjin University.
Currently, he is a postdoctoral researcher at the School of Marine Science and Technology, Northwestern Polytechnical University and his research interests include underwater acoustic communication and detection.
Presentation title: A dictionary theory approach in designing non-orthogonal waveform for underwater integrated sensing and communication
Abstract: Employing non-orthogonal waveforms in underwater acoustic communication augments spectral efficiency and promises elevated data transmission rates, accommodates concurrent multiple user access, and offers adaptable detection capabilities through dynamic subcarrier allocation. In this paper, we introduce a novel approach to integrated sensing and communication in underwater acoustic (UWA) environments, by leveraging dictionary theory to design a non-orthogonal waveform. The proposed Sparse Non-Orthogonal Frequency Division Multiplexing (S-NOFDM) waveform effectively harnesses the potential of the non-orthogonal waveform for both communication and sensing purposes. In communication, it achieves higher spectral efficiency through subcarrier overlapping and sparse representation. In sensing, we introduced a sparse detection algorithm to mitigate inter-carrier interference, achieving ranging and speeding with satisfactory precision. The feasibility and effectiveness of the proposed S-NOFDM waveform are validated through various simulations and UWA experiments, demonstrating its potential as a candidate for sonar-communication systems. |