"Dataset-for-Building-Induced-Structure-Material-Dual-Domain-Shift"

"The dataset is synthetically generated for an IRS-assisted cascaded channel estimation task. For each environment defined by a layout power gain (PG) and wall reflection coefficient (\\Gamma), AP\u2013IRS and IRS\u2013UE channels are sampled as (N)-dimensional complex Gaussian vectors with covariance (R=PG\\cdot R_0(\\Gamma)). The cascaded channel is formed by element-wise multiplication (h_c=h_{AI}\\odot h_{IU}). Noisy observations are (y=h_c+n), where (n\\sim\\mathcal{CN}(0,\\sigma^2I)) and (\\sigma^2) is set by a target SNR (10 dB in the default setting). Inputs and labels are stored as (2N)-dimensional real vectors by stacking real and imaginary parts. The source set pools 24 environments."