109 citations · 269 across the 18 of their papers we have counts for
7 papers · 1 filter
Two-Timescale Design for RIS-aided Cell-free Massive MIMO Systems with Imperfect CSI
Mahdi Eskandari, Kangda Zhi, Huiling Zhu +2
The objective of this paper is to evaluate the effectiveness of a two-timescale transmission design in cell-free massive multi-input multiple-output (MIMO) systems incorporating re…
Error Propagation and Overhead Reduced Channel Estimation for RIS-Aided Multi-User mmWave Systems
Zhendong Peng, Cunhua Pan, Gui Zhou +1
In this paper, we propose a novel two-stage based uplink channel estimation strategy with reduced pilot overhead and error propagation for a reconfigurable intelligent surface (RIS…
Energy Minimization in RIS-Assisted UAV-Enabled Wireless Power Transfer Systems
Hong Ren, Zhenkun Zhang, Zhangjie Peng +2
Unmanned aerial vehicle (UAV)-enabled wireless power transfer (WPT) systems offer significant advantages in coverage and deployment flexibility, but suffer from endurance limitatio…
RIS-Aided Near-Field Localization and Channel Estimation for the Sub-Terahertz System
Yijin Pan, Cunhua Pan, Shi Jin +1
The low hardware cost makes ultra-large (XL) reconfigurable intelligent surface (RIS) an attractive solution for the performance enhancement of localization and communication syste…
Joint Angle Estimation Error Analysis and 3D Positioning Algorithm Design for mmWave Positioning System
Tuo Wu, Cunhua Pan, Yijin Pan +5
In this paper, we propose a comprehensive framework to jointly analyze the angle estimation error and design the three-dimensional (3D) positioning algorithm for a millimeter wave…
Active RIS Versus Passive RIS: Which Is Superior with the Same Power Budget?
Kangda Zhi, Cunhua Pan, Hong Ren +2
This letter theoretically compares the active reconfigurable intelligent surface (RIS)-aided system with the passive RIS-aided system. For fair comparison, we consider that these t…