5 papers
Joint Size and Placement Optimization for IRS-Aided Communications with Active and Passive Elements
Qiaoyan Peng, Qingqing Wu, Wen Chen +6
Different types of intelligent reflecting surfaces (IRS) are exploited for assisting wireless communications. The joint use of passive IRS (PIRS) and active IRS (AIRS) emerges as a…
Movable Intelligent Surface (MIS) for Wireless Communications: Architecture, Modeling, Algorithm, and Prototyping
Ziyuan Zheng, Qingqing Wu, Wen Chen +2
Reconfigurable intelligent surfaces enhance wireless systems by reshaping propagation environments. However, dynamic metasurfaces (MSs) with numerous phase-shift elements incur und…
Spatial Multiplexing Oriented Channel Reconfiguration in Multi-IRS Aided MIMO Systems
Yuxuan Chen, Qingqing Wu, Guangji Chen +1
Spatial multiplexing plays a significant role in improving the capacity of multiple-input multiple-output (MIMO) communication systems. To improve the spectral efficiency (SE) of a…
Towards TMA-Based Transmissive RIS Transceiver Enabled Downlink Communication Networks: A Consensus-ADMM Approach
Zhendong Li, Wen Chen, Haoran Qin +4
This paper presents a novel multi-stream downlink communication system that utilizes a transmissive reconfigurable intelligent surface (RIS) transceiver. Specifically, we elaborate…
Movable Antennas Meet Intelligent Reflecting Surface: When Do We Need Movable Antennas?
Xin Wei, Weidong Mei, Qingqing Wu +2
Intelligent reflecting surface (IRS) and movable antenna (MA)/fluid antenna (FA) techniques have both received increasing attention in the realm of wireless communications due to t…