Zilong LIU @ School of CSEE, University of Essex - Communication systems
Date: - Location: Eurecom
Abstract: A fundamental research problem in ISAC is how to design optimal/good waveforms for efficient enabling of both sensing and communications. In the first part of this talk, I will introduce a novel multicarrier ISAC waveform having low peak-to-average power ratio property. We consider a flexible and generic ISAC structure in which a number of non-contiguous sub-bands for data transmission are located in a large contiguous spectrum band. Optimization is carried out for those non-communication subcarriers with the aid of the majorization-minimization method. In the second part, I will introduce several families of sensing sequences for low-complexity delay-Doppler estimation in ISAC systems. Fundamental limits and systematic constructions of these sequences will be presented. Bio: Dr Zilong Liu is an Associate Professor and the 6G Lab Manager with the School of Computer Science and Electronic Engineering, University of Essex. His research lies in the interplay of coding, signal processing, and communications, with a major objective of bridging theory and practice. His recent research interests include advanced 6G V2X communication, sensing, and localization technologies for future connected autonomous vehicles as well as machine learning for enhanced communications and networking. He received his PhD (2014) from School of Electrical and Electronic Engineering, Nanyang Technological University (NTU, Singapore), advised by Prof Yong Liang Guan, Master Degree (2007) in the Department of Electronic Engineering from Tsinghua University (China), advised by Prof Huazhong Yang (IEEE Fellow), and Bachelor Degree (2004) in the School of Electronics and Information Engineering from Huazhong University of Science and Technology (HUST, China). He was also a Visiting PhD student to Hong Kong University of Science and Technology (HKUST, hosted by Prof Wai Ho Mow) and the University of Melbourne (hosted by Prof Udaya Parampalli). From Jan. 2018 to Nov. 2019, he was a Senior Research Fellow at the Institute for Communication Systems (ICS), Home of the 5G Innovation Centre (5GIC), University of Surrey, during which he studied the air-interface design of 5G communication networks. Prior to his career in UK, he spent nine and half years in NTU, first as a Research Associate (Jul. 2008 to Oct. 2014) and then a Research Fellow (Nov. 2014 to Dec. 2017). His PhD thesis “Perfect- and Quasi- Complementary Sequences”, focusing on fundamental limits, algebraic constructions, and applications of complementary sequences in wireless communications, has settled a few long-standing open problems in the field. He is a Senior Member of IEEE and an Associate Editor of IEEE Transactions on Wireless Communications, IEEE Transactions on Vehicular Technology, IEEE Transactions on Neural Networks and Learning Systems, IEEE Wireless Communications Letters, IEEE Open Journal of the Communication Society, and Advances in Mathematics of Communications. He was Hosting General Chair of the 12th Sequences and Their Applications (SETA’2024, https://seta-2024.github.io/) and the 10th IEEE International Workshop on Signal Design and its Applications in Communications (iwsda2022.github.io). He was named the 2024 Outstanding Mid-Career Researcher in the Faculty of Science and Health, the University of Essex. He was a Red Bird Visiting Scholar in HKUST from December 2023 to January 2024. He was a Consultant to the Japanese government on 6G assisted autonomous driving in January 2023. He is/was the Leading Track Chair on Signal Processing for Wireless Communications in IEEE VTC2025-Fall. He was a Track Co-Chair on Networking and MAC in IEEE PIMRC’2023. Details of his research can be found at: https://sites.google.com/site/zilongliu2357.
