Exploiting Structured Sparsity in Near Field: From the Perspective of
Decomposition
Exploiting Structured Sparsity in Near Field: From the Perspective of
Decomposition
The structured sparsity can be leveraged in traditional far-field channels, greatly facilitating efficient sparse channel recovery by compressing the complexity of overheads to the level of the scatterer number. However, when experiencing a fundamental shift from planar-wave-based far-field modeling to spherical-wave-based near-field modeling, whether these benefits persist in the near-field …