A joint autocorrelation and cross-correlation scheme that first estimates wavefront curvature and then angle, enabling lower-complexity near-field channel and position estimation for XL-MIMO.
Channel estimation for extremely larg e-scale massive MIMO: far-field, near-field, or hybrid-field?
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Low Time Complexity Near-Field Channel and Position Estimations
A joint autocorrelation and cross-correlation scheme that first estimates wavefront curvature and then angle, enabling lower-complexity near-field channel and position estimation for XL-MIMO.