7 papers · 1 filter
Channel Customization for Low-Complexity CSI Acquisition in Multi-RIS-Assisted MIMO Systems
Weicong Chen, Yu Han, Chao-Kai Wen +2
The deployment of multiple reconfigurable intelligent surfaces (RISs) enhances the propagation environment by improving channel quality, but it also complicates channel estimation.…
Rotatable Block-Controlled RIS: Bridging the Performance Gap to Element-Controlled Systems
Weicong Chen, Xinyi Yang, Chao-Kai Wen +5
The passive reconfigurable intelligent surface (RIS) requires numerous elements to achieve adequate array gain, which linearly increases power consumption (PC) with the number of r…
Mid-Band Extra Large-Scale MIMO System: Channel Modeling and Performance Analysis
Jiachen Tian, Yu Han, Xiao Li +2
In pursuit of enhanced quality of service and higher transmission rates, communication within the mid-band spectrum, such as bands in the 6-15 GHz range, combined with extra large-…
Distributed Signal Processing for Extremely Large-Scale Antenna Array Systems: State-of-the-Art and Future Directions
Yanqing Xu, Erik G. Larsson, Eduard A. Jorswieck +3
Extremely large-scale antenna arrays (ELAA) play a critical role in enabling the functionalities of next generation wireless communication systems. However, as the number of antenn…
Measurement-Based Small-Scale Channel Model for Sub-6 GHz RIS-Assisted Communications
Jian Sang, Jifeng Lan, Mingyong Zhou +6
Reconfigurable intelligent surfaces (RISs) have attracted increasing interest from both academia and industry, thanks to their unique features on controlling electromagnetic (EM) w…
Performance Evaluation for Subarray-based Reconfigurable Intelligent Surface-Aided Wireless Communication Systems
Xinyi Yang, Weicong Chen, Xiao Li +1
Reconfigurable intelligent surfaces (RISs) have received extensive concern to improve the performance of wireless communication systems. In this paper, a subarray-based scheme is i…