3 papers
cs.IT2026
Recent Advances in Near-Field Beam Training and Channel Estimation for XL-MIMO Systems
Ming Zeng, Ji Wang, Wanming Hao +3
Extremely large-scale multiple-input multiple-output (XL-MIMO) is a key technology for next-generation wireless communication systems. By deploying significantly more antennas than…
cs.IT2026
Joint Power Allocation and Antenna Placement for Pinching-Antenna Systems under User Location Uncertainty
Hao Feng, Ming Zeng, Xingwang Li +3
Pinching antenna systems have attracted much attention recently owing to its capability to maintain reliable line-of-sight (LoS) communication in high-frequency bands. By guiding s…
cs.IT2024
Double Self-Sustainable Reconfigurable Intelligent Surfaces Aided Wireless Communications
Ji Wang, Suhong Luo, Yixuan Li +3
A double self-sustainable reconfigurable intelligent surfaces (RISs) assisted multi-user multiple input multiple output (MIMO) system is investigated. Two RISs are equipped with en…