A unified doubly-dispersive MIMO channel model with SIM and RIS is derived, and SIM phase optimization is shown to improve BER and radar parameter estimation for OFDM, OTFS, and AFDM.
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Metasurfaces-Integrated Doubly-Dispersive MIMO: Channel Modeling and Optimization
A unified doubly-dispersive MIMO channel model with SIM and RIS is derived, and SIM phase optimization is shown to improve BER and radar parameter estimation for OFDM, OTFS, and AFDM.