Polarized-Channel-Modeling

The tri-/dual-polarized channel modeling for HMIMO surfaces, the details refer to the paper "Tri-Polarized Holographic MIMO Surfaces for Near-Field Communications: Channel Modeling and Precoding Design"

Fourier-Planar-Expansion-FarField-Channel-Model

L. Wei et al., "Multi-User Holographic MIMO Surfaces: Channel Modeling and Spectral Efficiency Analysis," in IEEE Journal of Selected Topics in Signal Processing, vol. 16, no. 5, pp. 1112-1124, Aug. 2022

Joint-Channel-Estimation-and-Signal-Recovery

The paper of source codes is published as L. Wei et al., "Joint Channel Estimation and Signal Recovery for RIS-Empowered Multiuser Communications," in IEEE Transactions on Communications, vol. 70, no. 7, pp. 4640-4655, July 2022

PARAFAC_ALS_ChannelEstimation

PARAFAC ALS algorithm is adopted to estimate two cascaded channels in RIS assisted systems.

PARAFAC_ALS_CRB

The CRBs of channel estimates of PARAFAC ALS based channel estimation algorithm in RIS-assisted systems.