Near-field channel estimation via wavefront parameterization

This document is a collection of recent 6G/advanced-RF and signal-processing papers (May 7, 2026) covering near-field channel estimation, sub-THz/140 GHz backscatter modeling, RIS performance in realistic environments, XL-/circular-RIS and beam-squint-aware channel estimation, topology-aware federated learning for LEO/Sub-THz networks, vision-aided beam selection and proactive blockage prediction, intent-driven communication (IDC) integrating LLMs with RIS and dynamic spectrum leasing, ISAC multi-AP cooperative beamforming, novel pinching-antenna spatial modulation and radiation-control for N/