A low-complexity MMSE channel estimator for AFDM is derived by modeling the doubly selective channel with GCE-BEM, with closed-form NMSE and BER analysis that match simulations.
Chirp Parameter Selection for Affine Frequency Division Multiplexing with MMSE Equalization,
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BEM-Assisted Low-Complexity Channel Estimation for AFDM Systems over Doubly Selective Channels
A low-complexity MMSE channel estimator for AFDM is derived by modeling the doubly selective channel with GCE-BEM, with closed-form NMSE and BER analysis that match simulations.