Biography:Hai Lin received the B.E. degree from Shanghai JiaoTong University, China, in 1993, and the Dr. Eng. degree from Osaka Prefecture University (renamed Osaka Metropolitan University in 2022), Japan, in 2005, where he is currently a Professor. Prof. Lin received the Best Paper Award from IEEE GLOBECOM 2018 and 2023. He was the Chair of the SPCE TC, IEEE ComSoc, from 2015 to 2016, and the Chair of the IEEE ComSoc Kansai Chapter, from 2022 to 2023. Prof. Lin is an Associate Editor of the IEEE Transactions on Communications and the IEEE Transactions on Vehicular Technology.
Talk Title:
Orthogonal Delay-Doppler Division Multiplexing (ODDM): A Novel Delay-Doppler Domain Multi-Carrier Waveform for NextG
Talk Abstract :
A wide range of emerging mobile applications, such as vehicle-to-everything (V2X), high-speed railway systems, are expected to be supported by future wireless networks. Communications in such high-mobility scenarios suffer from severe channel Doppler spreads, where the corresponding linear time-varying (LTV) channels deteriorate the performance of the widely adopted orthogonal frequency division multiplexing (OFDM) modulation. As a novel and fundamentally new waveform, orthogonal delay-Doppler division multiplexing (ODDM) or delay-Doppler domain multi-carrier (DDMC) in general has been proposed to address the challenges of waveform design for LTV channels. This talk aims at providing the state-of-the-art of this newly invented modulation scheme to unveil its fundamentals, connections with existing multi-carrier signal waveforms, and identify major technical challenges and new applications related to ODDM.
