164 citations · 466 across the 19 of their papers we have counts for
20 papers
Prior-Aided Iterative Channel Reconstruction with Optimized Frame Structure for DSE Mitigation in CP-OTFS-Based LEO Satellite Systems
Yiyan Cheng, Tiejun Lv, Yashuai Cao +2
Orthogonal time frequency space (OTFS) modulation has emerged as a promising solution to mitigate the severe Doppler shift in low Earth orbit (LEO) satellite communications. Howeve…
A Learnable SIM Paradigm: Fundamentals, Training Techniques, and Applications
Hetong Wang, Yashuai Cao, Tiejun Lv
Stacked intelligent metasurfaces (SIMs) represent a breakthrough in wireless hardware by comprising multilayer, programmable metasurfaces capable of analog computing in the electro…
A Harmony Composition-Inspired Tensor Modalization Method for Near-Field IRS Channel Estimation
Wenzhou Cao, Yashuai Cao, Tiejun Lv +1
Intelligent reflecting surfaces (IRSs) are poised to revolutionize next-generation wireless communication systems by enhancing channel quality and spectrum efficiency through advan…
Efficient Off-Grid Near-Field Cascade Channel Estimation for XL-IRS Systems via Tucker Decomposition
Wenzhou Cao, Yashuai Cao, Tiejun Lv +1
Accurate cascaded channel state information is pivotal for extremely large-scale intelligent reflecting surfaces (XL-IRS) in next-generation wireless networks. However, the large X…
ARIS-RSMA Enhanced ISAC System: Joint Rate Splitting and Beamforming Design
Xin Jin, Tiejun Lv, Yashuai Cao +2
This letter proposes an active reconfigurable intelligent surface (ARIS) assisted rate-splitting multiple access (RSMA) integrated sensing and communication (ISAC) system to overco…
Stacked Intelligent Metasurfaces-Based Electromagnetic Wave Domain Interference-Free Precoding
Hetong Wang, Yashuai Cao, Tiejun Lv +4
This paper introduces an interference-free multi-stream transmission architecture leveraging stacked intelligent metasurfaces (SIMs), from a new perspective of interference exploit…
Navigating the Dual-Use Nature and Security Implications of Reconfigurable Intelligent Surfaces in Next-Generation Wireless Systems
Hetong Wang, Tiejun Lv, Yashuai Cao +4
Reconfigurable intelligent surface (RIS) technology offers significant promise in enhancing wireless communication systems, but its dual-use potential also introduces substantial s…
Uninformed-to-Informed Estimation: A Ping-Pong Positioning Method for Multi-user Wideband mmWave Systems
Lin Guo, Tiejun Lv, Yashuai Cao +1
To enhance the positioning and tracking performance of dynamic user equipment (UE) in wideband millimeter-wave (mmWave) systems, we propose a novel positioning error lower bound (P…
Lightweight and Self-Evolving Channel Twinning: An Ensemble DMD-Assisted Approach
Yashuai Cao, Jintao Wang, Xu Shi +1
Traditional channel acquisition faces significant limitations due to ideal model assumptions and scalability challenges. A novel environment-aware paradigm, known as channel twinni…
Intelligent Reflecting Surfaces and Next Generation Wireless Systems
Yashuai Cao, Hetong Wang, Tiejun Lv +1
Intelligent reflecting surface (IRS) is a potential candidate for massive multiple-input multiple-output (MIMO) 2.0 technology due to its low cost, ease of deployment, energy effic…
Multi-Carrier NOMA-Empowered Wireless Federated Learning with Optimal Power and Bandwidth Allocation
Weicai Li, Tiejun Lv, Yashuai Cao +2
Wireless federated learning (WFL) undergoes a communication bottleneck in uplink, limiting the number of users that can upload their local models in each global aggregation round.…
Two-Timescale Optimization for Intelligent Reflecting Surface-Assisted MIMO Transmission in Fast-Changing Channels
Yashuai Cao, Tiejun Lv, Wei Ni
The application of intelligent reflecting surface (IRS) depends on the knowledge of channel state information (CSI), and has been hindered by the heavy overhead of channel training…
Downlink Power Minimization in Intelligent Reconfigurable Surface-Aided Security Classification Wireless Communications System
Jintao Xing, Tiejun Lv, Yashuai Cao +2
User privacy protection is considered a critical issue in wireless networks, which drives the demand for various secure information interaction techniques. In this paper, we introd…
Low-Complexity Distributed Precoding in User-Centric Cell-Free mmWave MIMO Systems
Yingrong Zhong, Yashuai Cao, Tiejun Lv
User-centric (UC) based cell-free (CF) structures can provide the benefits of coverage enhancement for millimeter wave (mmWave) multiple input multiple output (MIMO) systems, which…
Sum-Rate Maximization for Multi-Reconfigurable Intelligent Surface-Assisted Device-to-Device Communications
Yashuai Cao, Tiejun Lv, Wei Ni +1
This paper proposes to deploy multiple reconfigurable intelligent surfaces (RISs) in device-to-device (D2D)-underlaid cellular systems. The uplink sum-rate of the system is maximiz…
Complex ResNet Aided DoA Estimation for Near-Field MIMO Systems
Yashuai Cao, Tiejun Lv, Zhipeng Lin +2
The near-field effect of short-range multiple-input multiple-output (MIMO) systems imposes many challenges on direction-of-arrival (DoA) estimation. Most conventional scenarios ass…
Sum Rate Maximization for Reconfigurable Intelligent Surface Assisted Device-to-Device Communications
Yashuai Cao, Tiejun Lv
In this letter, we propose to employ reconfigurable intelligent surfaces (RISs) for enhancing the D2D underlaying system performance. We study the joint power control, receive beam…
Delay-Constrained Joint Power Control, User Detection and Passive Beamforming in Intelligent Reflecting Surface Assisted Uplink mmWave System
Yashuai Cao, Tiejun Lv, Zhipeng Lin +1
Millimeter-wave (mmWave) communications provide access to spectra with bandwidths and in abundance. However, the high susceptibility of mmWave to blockage imposes crucial challenge…
Intelligent Reflecting Surface Enhanced Resilient Design for MEC Offloading over Millimeter Wave Links
Yashuai Cao, Tiejun Lv
The merge of mobile edge computing (MEC) and millimeter-wave (mmWave) communications will hopefully enable the fast access for computational resources, where these two technologies…
Intelligent Reflecting Surface Aided Multi-User Millimeter-Wave Communications for Coverage Enhancement
Yashuai Cao, Tiejun Lv, Wei Ni
Intelligent reflecting surface (IRS) is envisioned as a promising solution for controlling radio propagation environments in future wireless systems. In this paper, we propose a di…