Dr. Chang Liu received the Ph.D. degree from Dalian University of Technology, China, in 2017. He was also a joint Ph.D. Scholar with the University of Tennessee, Knoxville, TN, USA, a Post-Doctoral Research Fellow with the University of New South Wales, Sydney, Australia. Since 2022, he has been an Alexander von Humboldt Research Fellow with the Institute for Digital Communications, Friedrich Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany. He is currently a Research Assistant Professor with the Department of Electronic and Information Engineering, The Hong Kong Polytechnic University. To date, he has published more than 50 journal and conference papers, including 1 Essential Science Indicators highly cited paper, 1 hot paper, 2 IEEE Best Readings papers, and 8 IEEE popular articles. He was a recipient of the Best Paper Award at the IEEE International Symposium on Wireless Communication Systems in 2022 and an Exemplary Reviewer from IEEE Transactions on Communications. He is a foundation member of IEEE Comsoc special interest group on orthogonal time frequency space (OTFS), a Lead Guest Editor of Future Internet, and a Guest Editor of Frontiers in Communications and Networks. His research interests include machine learning for communications, integrated sensing and communication (ISAC), intelligent reflecting surface (IRS)-assisted communications, OTFS, Internet of Things (IoT), and cognitive radio.