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cs.IT2025
Affine Frequency Division Multiplexing: From Communication to Sensing
Ali Bemani, Nassar Ksairi, Marios Kountouris
Affine Frequency Division Multiplexing (AFDM) has been proposed as an effective waveform for achieving the full diversity of doubly-dispersive (delay-Doppler) channels. While this…
cs.IT2025
Models, Methods and Waveforms for Estimation and Prediction of Doubly Sparse Time-Varying Channels
Wissal Benzine, Ali Bemani, Nassar Ksairi +1
This paper investigates channel estimation for linear time-varying (LTV) wireless channels under double sparsity, i.e., sparsity in both the delay and Doppler domains. An on-grid a…