3 papers
eess.SP2026
Stepped Frequency Division Multiplexing: A Jump-Free Continuous-Time AFDM Waveform
Yewen Cao, Yulin Shao
Affine frequency division multiplexing (AFDM) has emerged as a promising modulation scheme for doubly selective channels, but its canonical continuous-time realization, referred to…
cs.IT2025
Agile Affine Frequency Division Multiplexing
Yewen Cao, Yulin Shao
The advancement to 6G calls for waveforms that transcend static robustness to achieve intelligent adaptability. Affine Frequency Division Multiplexing (AFDM), despite its strength…
cs.IT2024
Fractional Fourier Domain PAPR Reduction
Yewen Cao, Yulin Shao, Rose Qingyang Hu
High peak-to-average power ratio (PAPR) has long posed a challenge for multi-carrier systems, impacting amplifier efficiency and overall system performance. This paper introduces d…