792 citations · 3.1k across the 112 of their papers we have counts for
33 papers · 1 filter
User Power Measurement Based IRS Channel Estimation via Single-Layer Neural Network
He Sun, Weidong Mei, Lipeng Zhu +1
One main challenge for implementing intelligent reflecting surface (IRS) aided communications lies in the difficulty to obtain the channel knowledge for the base station (BS)-IRS-u…
Passive Reflection Codebook Design for IRS-Integrated Access Point
Yuwei Huang, Lipeng Zhu, Rui Zhang
Intelligent reflecting surface (IRS) has emerged as a promising technique to extend the wireless signal coverage of access point (AP) and improve the communication performance cost…
A Tutorial on Environment-Aware Communications via Channel Knowledge Map for 6G
Yong Zeng, Junting Chen, Jie Xu +7
Sixth-generation (6G) mobile communication networks are expected to have dense infrastructures, large antenna size, wide bandwidth, cost-effective hardware, diversified positioning…
Multi-User Modular XL-MIMO Communications: Near-Field Beam Focusing Pattern and User Grouping
Xinrui Li, Zhenjun Dong, Yong Zeng +2
In this paper, we investigate multi-user modular extremely large-scale multiple-input multiple-output (XL-MIMO) communication systems, where modular extremely large-scale uniform l…
Multiuser Communications with Movable-Antenna Base Station: Joint Antenna Positioning, Receive Combining, and Power Control
Zhenyu Xiao, Xiangyu Pi, Lipeng Zhu +2
Movable antenna (MA) is an emerging technology which enables a local movement of the antenna in the transmitter/receiver region for improving the channel condition and communicatio…
Multiuser Communications with Movable-Antenna Base Station Via Antenna Position Optimization
Xiangyu Pi, Lipeng Zhu, Zhenyu Xiao +1
This paper studies the deployment of multiple movable antennas (MAs) at the base station (BS) for enhancing the multiuser communication performance. First, we model the multiuser c…
Joint Beam Routing and Resource Allocation Optimization for Multi-IRS-Reflection Wireless Power Transfer
Weidong Mei, Zhi Chen, Rui Zhang
Intelligent reflecting surface (IRS) can be densely deployed in complex environments to create cascaded line-of-sight (LoS) links between base stations (BSs) and users, which signi…
Near-Field Beam Focusing Pattern and Grating Lobe Characterization for Modular XL-Array
Xinrui Li, Zhenjun Dong, Yong Zeng +2
In this paper, we investigate the near-field modelling and analyze the beam focusing pattern for modular extremely large-scale array (XL-array) communications. As modular XL-array…
Reconfigurable Massive MIMO: Harnessing the Power of the Electromagnetic Domain for Enhanced Information Transfer
Keke Ying, Zhen Gao, Sheng Chen +4
The capacity of commercial massive multiple-input multiple-output (mMIMO) systems is constrained by the limited array aperture at the base station, and cannot meet the ever-increas…
Movable-Antenna Enhanced Multiuser Communication via Antenna Position Optimization
Lipeng Zhu, Wenyan Ma, Boyu Ning +1
Movable antenna (MA) is a promising technology to improve wireless communication performance by varying the antenna position in a given finite area at the transceivers to create mo…
MIMO Capacity Characterization for Movable Antenna Systems
Wenyan Ma, Lipeng Zhu, Rui Zhang
In this paper, we propose a new multiple-input multiple-output (MIMO) communication system with movable antennas (MAs) to exploit the antenna position optimization for enhancing th…
Single-Carrier Delay Alignment Modulation for Multi-IRS Aided Communication
Haiquan Lu, Yong Zeng, Shi Jin +1
Delay alignment modulation (DAM) is a promising technology to achieve ISI-free wideband communication, by leveraging delay compensation and path-based beamforming, rather than the…
Modeling and Performance Analysis for Movable Antenna Enabled Wireless Communications
Lipeng Zhu, Wenyan Ma, Rui Zhang
In this paper, we propose a novel antenna architecture called movable antenna (MA) to improve the performance of wireless communication systems. Different from conventional fixed-p…
Joint Base Station and IRS Deployment for Enhancing Network Coverage: A Graph-Based Modeling and Optimization Approach
Weidong Mei, Rui Zhang
Intelligent reflecting surface (IRS) can be densely deployed in complex environment to create cascaded line-of-sight (LoS) paths between multiple base stations (BSs) and users via…
Modular Extremely Large-Scale Array Communication: Near-Field Modelling and Performance Analysis
Xinrui Li, Haiquan Lu, Yong Zeng +2
This paper investigates wireless communications based on a new antenna array architecture, termed modular extremely large-scale array (XL-array), where an extremely large number of…
Active-Passive IRS aided Wireless Communication: New Hybrid Architecture and Elements Allocation Optimization
Zhenyu Kang, Changsheng You, Rui Zhang
Intelligent reflecting surface (IRS) has emerged as a promising technology to enhance the wireless communication network coverage and capacity by dynamically controlling the radio…
Roadside IRS-Aided Vehicular Communication: Efficient Channel Estimation and Low-Complexity Beamforming Design
Zixuan Huang, Beixiong Zheng, Rui Zhang
Intelligent reflecting surface (IRS) has emerged as a promising technique to control wireless propagation environment for enhancing the communication performance cost-effectively.…
Environment-Aware Hybrid Beamforming by Leveraging Channel Knowledge Map
Di Wu, Yong Zeng, Shi Jin +1
Hybrid analog/digital beamforming is a promising technique to realize millimeter wave (mmWave) massive multiple-input multiple-output (MIMO) systems cost-effectively. However, exis…
Intelligent Reflecting Surface-Aided Spectrum Sensing for Cognitive Radio
Shaoe Lin, Beixiong Zheng, Fangjiong Chen +1
Spectrum sensing is a key enabling technique for cognitive radio (CR), which provides essential information on the spectrum availability. However, due to severe wireless channel fa…
Intelligent Reflecting Surface-Aided LEO Satellite Communication: Cooperative Passive Beamforming and Distributed Channel Estimation
Beixiong Zheng, Shaoe Lin, Rui Zhang
We consider in this paper a new intelligent reflecting surface (IRS)-aided LEO satellite communication system, by utilizing the controllable phase shifts of massive passive reflect…
Empowering Base Stations with Co-Site Intelligent Reflecting Surfaces: User Association, Channel Estimation and Reflection Optimization
Yuwei Huang, Weidong Mei, Rui Zhang
Intelligent reflecting surface (IRS) has emerged as a promising technique to enhance wireless communication performance cost effectively. The existing literature has mainly conside…
Achievable Rate Maximization for Underlay Spectrum Sharing MIMO System with Intelligent Reflecting Surface
Vaibhav Kumar, Mark Flanagan, Rui Zhang +1
In this letter, the achievable rate maximization problem is considered for intelligent reflecting surface (IRS) assisted multiple-input multiple-output (MIMO) systems in an underla…
Environment-Aware Beam Selection for IRS-Aided Communication with Channel Knowledge Map
Dingyang Ding, Di Wu, Yong Zeng +2
Intelligent reflecting surface (IRS)-aided communication is a promising technology for beyond 5G (B5G) systems, to reconfigure the radio environment proactively. However, IRS-aided…
Intelligent Reflecting Surface for Multi-Path Beam Routing with Active/Passive Beam Splitting and Combining
Weidong Mei, Rui Zhang
Intelligent reflecting surface (IRS) can be densely deployed in wireless networks to significantly enhance the communication channels. In this letter, we consider the downlink tran…