AFDM: A Promising Backwards-Compatible Waveform for Resilient and Scalable 6G Systems
This talk by Dr. Zilong Liu (University of Essex, UK) will introduce affine frequency division multiplexing (AFDM) modulation, which is one of the most promising backwards-compatible waveforms for efficient realization of highly resilient and scalable 6G systems. Specifically, AFDM subsumes the legacy OFDM as a special case and can be efficiently implemented through minimal modification of the OFDM transmitter. By modulating different data symbols over multiple orthogonal chirp subcarriers, AFDM is able to attain the full channel diversity and hence significantly improved error rate performance compared to OFDM. Besides the basic principles, Dr. Zilong Liu will introduce a number of recent advances on AFDM including:
1) Non-orthogonal AFDM;
2) Generalized spatial modulation aided AFDM (GSM-AFDM);
3) AFDM aided sparse code multiple access (AFDM-SCMA);
4) MIMO-AFDM in the Face of Hardware Impairments.
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- Escola d'Enginyeria
- Carrer de les Sitges s/n
- Bellaterra, Cataluna
- Spain 08193
- Building: Q
- Room Number: Seminar F
- Click here for Map
- Starts 19 February 2026 11:00 PM UTC
- Ends 04 March 2026 12:00 PM UTC
- No Admission Charge
Speakers
Zilong Liu of University of Essex (UK)
Biography:
Dr Zilong Liu is an Associate Professor, the 6G Lab Manager, and the 2024 Outstanding Mid-Career Researcher in the Faculty of Science and Health, University of Essex, UK. His research generally lies in the interplay of coding, signal processing, and communications, with a major objective of bridging theory and practice. So far, he has made a series of original contributions to sequences, waveforms, and code-domain multiple access. He has widely published in quality journals such as IEEE TRANSACTIONS ON INFORMATION THEORY and IEEE TRANSACTIONS ON SIGNAL PROCESSING. Prior to his current post, he was with Huazhong University of Science and Technology (Bachelor, 2000-2004), Tsinghua University (MSc, 2004-2007), Nanyang Technological University Singapore (PhD and postdoc, 2008-2017), University of Melbourne (Visiting PhD, 2012), the Hong Kong University of Science and Technology (Visiting PhD, 2012), and the University of Surrey (Senior Research Fellow, 2018-2019).