A distributed algorithm uses parametric symmetry of wideband near-field channels to decouple parameters from delay variations and estimate the channel with a single pilot in hybrid XL-MIMO architectures.
RIS-aided near-field localization and channel estimation for the terahertz system,
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Distributed Near-Field Channel Estimation for U6G XL-MIMO Systems under Beam Squint
A distributed algorithm uses parametric symmetry of wideband near-field channels to decouple parameters from delay variations and estimate the channel with a single pilot in hybrid XL-MIMO architectures.