A two-stage MAMP plus DFT algorithm estimates massive MIMO-ODDM channels with near-Bayesian-optimal accuracy at linear complexity.
Performance degradation of OFDM systems due to Doppler spreading,
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Channel Estimation in Massive MIMO Systems with Orthogonal Delay-Doppler Division Multiplexing
A two-stage MAMP plus DFT algorithm estimates massive MIMO-ODDM channels with near-Bayesian-optimal accuracy at linear complexity.