DPSS-based Dictionary Design for Near-Field XL-MIMO Channel Estimation
Date:
针对近场超大规模 MIMO（XL-MIMO）信道估计中传统压缩感知字典容量大、码字非正交的问题，介绍了一种基于离散长球序列（DPSS）的正交稀疏字典设计，可在降低导频开销的同时保持较高的信道估计精度。
This talk presents a discrete prolate spheroidal sequence (DPSS)-based dictionary design for near-field XL-MIMO channel estimation. The proposed dictionary features mutually orthogonal codewords and a compact size, reducing pilot overhead while maintaining accurate channel estimation.