5 papers
Networked Embodied Communication: From Collective Distinguishability to Communication Reliability
Yewen Cao, Yulin Shao
Embodied agents need to convey information to surrounding infrastructure, but their active communication interfaces may be unavailable, constrained, or intentionally inactive. Thei…
Resolving the Discontinuity of Continuous-Time AFDM Waveforms
Yewen Cao, Yulin Shao
Continuous-time affine frequency division multiplexing (AFDM) waveforms, constructed via frequency wrapping and phase correction, are known to be sample-wise equivalent to the wide…
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…
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…
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…