Delay Doppler Communications and Sensing: Principles, Advances, and Applications of Otfs

Delay Doppler Communications and Sensing: Principles, Advances and Applications of OTFS provides a comprehensive exploration of the principles and cutting-edge developments of delay Doppler (DD) communications and sensing with a specific focus on the advances and application of orthogonal time frequency space (OTFS). It highlights the fundamental theory for DD communications and sensing through the Zak transform, and discusses how this classic concept from quantum physics can reshape modern wireless technology. The important aspects of DD communications and sensing are introduced in detail, including transceiver design, performance analysis, and its application. In particular, this book reveals the intrinsic connections between DD domain wireless communication and sensing channels, unveiling the important interplay between communication and sensing functionalities in the DD domain. The book introduces the principles and design of communications and sensing based on the DD signal processing framework as well as delving into advanced aspects, such as DD domain MIMO and DD domain integrated sensing and communications (ISAC). By providing a comprehensive overview of both fundamental principles, cutting-edge research and practical applications, this book gives a deep understanding of the underlying concepts and techniques in Delay Doppler (DD) communications and sensing.

With this book the reader will:

• Gain a comprehensive understanding of the Zak transform and DD domain wireless channels
• Understand the concept of DD communications, including the popular variants of OTFS
• Learn implementation details of DD communications and sensing
• Follow state-of-the-art developments in DD communications and sensing
• Grasp the insights and physical interpretations of DD communications and sensing
• Have access to programming codes for OTFS and DD communications and sensing

• A comprehensive overview of both fundamental principles and cutting-edge research, giving a deep understanding of the underlying concepts and techniques in Delay Doppler (DD) communications and sensing
• Includes practical content such as coding strategies, channel estimation techniques, and equalization methods, accompanied by tips and guidance for practical implementation
• Explores a wide range of applications, from radar sensing to DD Multiple-Input Multiple-Output (MIMO) configurations, making it relevant for researchers, engineers, and practitioners in various domains
• Highlights outstanding research challenges and future directions, stimulating further exploration, and inspiring readers to contribute to the advancement of DD communications and sensing

Shuangyang Li received the B.S., M.S., and Ph.D. degrees from Xidian University, China, in 2013, 2016, and 2021, respectively. He received his second Ph.D. degree from the University of New South Wales (UNSW), Australia, in 2022. He is a recipient of the Marie Skłodowska-Curie Actions (MSCA) fellowship 2022 and is currently a research assistant at the Technical University of Berlin (TU-Berlin). Prior to that, he was a research associate at the University of Western Australia (UWA). He received the Best Paper Award from IEEE ICC 2023 and the Best Workshop Paper Award from IEEE WCNC 2023. He has been listed in the World's Top 2% Scientists by Stanford University for citation impact since 2023. Dr. Li is the recipient of the Best Young Researcher Award 2024 from the IEEE ComSoc EMEA region and is also a recipient of the European Research Council (ERC) Starting Grant 2025. He frequently serves as organizer/chair for workshops and tutorials on topics related to orthogonal time frequency space (OTFS) at IEEE flagship conferences and is a founding member and currently the co-chair of the special interest group (SIG) on OTFS. He is now an editor of IEEE Transactions on Communications. His research interests include signal processing, channel coding, applied information theory, and their applications to communication systems, with a specific focus on waveform designs.

Weijie Yuan is now an Assistant Professor with the Southern University of Science and Technology. His research interests include Integrated Sensing and Communications (ISAC), Orthogonal Time Frequency Space (OTFS), and Low-Altitude Wireless Networks (LAWN). He currently serves as an Editor for IEEE Transactions on Communications, IEEE Transactions on Wireless Communications, IEEE Transactions on Mobile Computing, IEEE Communications Magazine, IEEE Communications Standards Magazine, IEEE Transactions on Green Communications and Networking, IEEE Communications Letters, and IEEE Open Journal of Communications Society. He has led two special issues in IEEE Transactions on Vehicular Technology and IEEE Transactions on Network Science and Engineering. He was a Guest Editor for IEEE Internet of Things Journal. He was the Track Chair for IEEE ICC 2025 and IEEE VTC 2025-Spring. He has served as organizer/chair of several workshops and special sessions at flagship IEEE and ACM conferences, including IEEE ICC, IEEE VTC, IEEE GlobeCom, IEEE/CIC ICCC, IEEE SPAWC, IEEE WCNC, IEEE ICASSP, and ACM MobiCom. He is the Founding Chair of the IEEE ComSoc Special Interest Group (SIG) on LAWN as well as the SIG on OTFS. He has been listed among the World's Top 2% Scientists by Stanford University for citation impact from 2021 to 2024, and among the Elsevier Highly-Cited Chinese Researchers. He was a recipient of the Best Editor award from IEEE CommL, the Best Paper Award from IEEE ICC 2023, IEEE/CIC ICCC 2023, and IEEE GlobeCom 2024, as well as the 2025 IEEE Communications Society & Information Theory Society Joint Paper Award.

Zhiqiang Wei received the B.E. degree in Information Engineering from 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 (UNSW), Sydney, Australia, in 2019. From 2019 to 2020, he was a Postdoctoral Research Fellow with UNSW. From 2021 to 2022, he was a Humboldt Postdoctoral Research Fellow with the Institute for Digital Communications, Friedrich-Alexander University Erlangen-Nuremberg (FAU), Erlangen, Germany. He is currently a Professor with the School of Mathematics and Statistics, Xi’an Jiaotong University, Xi’an, China. His research interests include delay-Doppler communications, resource allocation optimization, and statistical and array signal processing. He received the Best Paper Award at IEEE ICC 2018 and IEEE WCNC 2023. He has served as organizer/chair for several workshops and tutorials on topics related to orthogonal time frequency space (OTFS) at IEEE flagship conferences, including IEEE ICC, IEEE WCNC, IEEE VTC, and IEEE ICCC. He also co-authored the IEEE ComSoc Best Readings on OTFS and Delay Doppler Signal Processing. He is the founding co-chair (publications) of the IEEE ComSoc special interest group on OTFS (OTFS-SIG). He has been listed in the World’s Top 2% Scientists by Stanford University for citation impact since 2021. He is currently an editor for IEEE Transactions on Communications and the IEEE Open Journal of the Communications Society.

Jinhong Yuan received the Ph.D. degree in Electronics Engineering from the Beijing Institute of Technology, Beijing, China, in 1997. He is currently a Professor and Head of the Telecommunication Group with the School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, Australia. He has published two books, five book chapters, more than 300 articles in telecommunications journals and conference proceedings, and 50 industrial reports. His current research interests include error control coding and information theory, communication theory, and wireless communications. He has coauthored four Best Paper Awards and one Best Poster Award, including the Best Paper Award from the IEEE International Conference on Communications, Kansas, USA, in 2018; the Best Paper Award from the IEEE Wireless Communications and Networking Conference, Cancun, Mexico, in 2011; and the Best Paper Award from the IEEE International Symposium on Wireless Communications Systems, Trondheim, Norway, in 2007. He is currently serving as an Associate Editor for IEEE Transactions on Wireless Communications.

Giuseppe Caire was born in Torino in 1965. He received a B.Sc. in Electrical Engineering from Politecnico di Torino in 1990, an M.Sc. in Electrical Engineering from Princeton University in 1992, and a Ph.D. from Politecnico di Torino in 1994. He has been a postdoctoral research fellow with the European Space Agency (ESTEC, Noordwijk, The Netherlands) in 1994–1995, Assistant Professor in Telecommunications at Politecnico di Torino, Associate Professor at the University of Parma, Italy, Professor with the Department of Mobile Communications at the Eurecom Institute, Sophia Antipolis, France, and Professor of Electrical Engineering with the Viterbi School of Engineering, University of Southern California, Los Angeles. He is currently an Alexander von Humboldt Professor with the Faculty of Electrical Engineering and Computer Science at the Technical University of Berlin, Germany. He received the Jack Neubauer Best System Paper Award from the IEEE Vehicular Technology Society in 2003; the IEEE Communications Society and Information Theory Society Joint Paper Award in 2004, 2011, and 2025; the Okawa Research Award in 2006; the Alexander von Humboldt Professorship in 2014; the Vodafone Innovation Prize in 2015; an ERC Advanced Grant in 2018; the Leonard G. Abraham Prize for best IEEE JSAC paper in 2019; the IEEE Communications Society Edwin Howard Armstrong Achievement Award in 2020; the 2021 Leibniz Prize of the German National Science Foundation (DFG); and the CTTC Technical Achievement Award of the IEEE Communications Society in 2023. Giuseppe Caire has been a Fellow of IEEE since 2005. He has served on the Board of Governors of the IEEE Information Theory Society from 2004 to 2007, and as an officer from 2008 to 2013. He was President of the IEEE Information Theory Society in 2011. His main research interests are in the field of communications theory, information theory, channel and source coding, with particular focus on wireless communications.