3 papers
cs.CE2026
Complex Permittivity Extraction of Polymer Materials Using Gradient-Enhanced NSGA-II Algorithm
Hanqing Zhang, Zhuowei Li, Jiliang Zhang +2
This paper presents gradient-enhanced non-dominated sorting genetic algorithm II (G-NSGA-II) to address the challenges of local optima and solution non-uniqueness in the complex pe…
eess.SP2026
Measurement-Based Ultra-Massive MIMO Statistical Channel Characterization and System Performance Evaluation for UMi Environments at 15 GHz FR3 Spectrum
Panpan Shi, Yang Wang, Xi Liao +3
This paper presents a detailed measurement campaign and a comprehensive analysis of 15 GHz ultra-massive multiple-input multiple-output (UM-MIMO) channels tailored for the urban mi…
cs.IT2022
Truncated Beam Sweeping for Spatial Covariance Matrix Reconstruction in Hybrid Massive MIMO
Yinsheng Liu, Hongtao Duan, Xi Liao
Spatial covariance matrix (SCM) is essential in many applications of multi-antenna systems such as massive multiple-input multiple-output (MIMO). For massive MIMO operating at mill…