T13: Orthogonal Time Frequency Space Modulation: Waveform for Future Wireless Networks
Co-Organizer: Weijie Yuan, Southern University of Science and Technology, China
Co-Organizer: Zhiqiang Wei, Fridrich-Alexander University Erlangen, Germany
Co-Organizer: Shuangyang Li, University of New South Wales, Australia
Abstract: Future wireless networks are expected to support ubiquitous connectivity to a wide range of emerging applications operating in hostile environments, spanning from autonomous cars to low-earth-orbit satellites, and underwater acoustic communications. The strong multipath, high delay and Doppler features in those hostile environments can impose great challenges for reliable wireless communications. Consequently, the conventional OFDM modulation may fail due to the high dynamical channel fluctuations. Recently proposed orthogonal time frequency space (OTFS) modulation has provided a different perspective of waveform design in contrast to the time-frequency signal processing paradigm. OTFS has shown promising performance over various channels and its advantages has been widely evident from both academic and industry perspectives. This tutorial aims to provide the state-of-art of OTFS with specific focuses on its fundamentals, advanced designs, performance analysis, and applications.
This tutorial will firstly overview the background and fundamentals of OTFS and delay Doppler domain signal processing. Then the research progress on this topic will be introduced, which consists of 3 technical parts: 1) window designs and channel estimation for OTFS, 2) OTFS detection and performance analysis, and 3) OTFS-enabled integrating communications and sensing. Finally, we will conclude the tutorial by summarizing the future directions and open problems.
Bio: Weijie Yuan (Member, IEEE) received the B. E. degree from the Beijing Institute of Technology, China, and the Ph.D. degree from the University of Technology Sydney, Australia, in 2013 and 2019, respectively. From 2019 to 2021, he was a Research Associate with the University of New South Wales. He is currently an assistant professor with the Department of Electrical and Electronic Engineering, Shenzhen, China. He has served as a Research Assistant with the University of Sydney, a Visiting Associate Fellow with the University of Wollongong, and a Visiting Fellow with the University of Southampton, from 2017 to 2019. In 2016, he was a Visiting Ph.D. Student with the Institute of Telecommunications, Vienna University of Technology, Austria. He serves as the Co- Chair and Co-Organizer for workshops and special sessions on orthogonal time frequency space (OTFS) and integrated sensing and communication (ISAC) in ICC 2021, ICCC 2021, SPAWC 2021, VTC 2021-Fall, WCNC 2022, and ICASSP 2022. He is the founding chair of the IEEE ComSoc special interest group on OTFS (OTFS-SIG). He is serving as an associate editor for the IEEE Communications Letters and EURASIP Journal on Advances in Signal Processing.
Bio: Zhiqiang Wei (Member, IEEE) received the B.E. degree in information engineering from the Northwestern Polytechnical University (NPU), Xi’an, China, in 2012 and the Ph.D. degree in Electrical Engineering and Telecommunications from the University of New South Wales, Sydney, Australia, in 2019. From 2019 to 2020, he was a Postdoctoral Research Fellow with the University of New South Wales. He is currently a Humboldt Postdoctoral Research Fellow with the Friedrich- Alexander University Erlangen-Nuremberg. He received the Best Paper Awards at the IEEE International Conference on Communications (ICC), 2018. He serves as the TPC Co-Chair of the IEEE ICC 2021 Workshop on orthogonal time frequency space.
Bio: Shuangyang Li (Member, IEEE) received the B.S., M.S., degrees from Xidian University, Xi’an, China, in 2013 and 2016, respectively, and the Ph.D. degree from the University of New South Wales, Sydney, Australia in 2021. He will join Technical University of Berlin as a post-doc research fellow. He was the TPC Co-Chair of the IEEE International Conference on Communications in China (ICCC) 2021 Workshop on orthogonal time frequency space (OTFS). He is a founding member and the secretary of the special interest group (SIG) on OTFS. He was a recipient of the 2021 student travel grant of IEEE International Conference on Communications (ICC). His research interests include signal processing, channel coding and their applications to communication systems, with a specific focus on waveform designs.