45 citations · 118 across the 24 of their papers we have counts for
11 papers · 1 filter
A SER-based Device Selection Mechanism in Multi-bits Quantization Federated Learning
Pengcheng Sun, Erwu Liu, Rui Wang
The quality of wireless communication will directly affect the performance of federated learning (FL), so this paper analyze the influence of wireless communication on FL through s…
Reinforcement Learning Based Robust Policy Design for Relay and Power Optimization in DF Relaying Networks
Yuanzhe Geng, Erwu Liu, Rui Wang +2
In this paper, we study the outage minimization problem in a decode-and-forward cooperative network with relay uncertainty. To reduce the outage probability and improve the quality…
Joint Location and Communication Study for Intelligent Reflecting Surface Aided Wireless Communication System
Rui Wang, Zhe Xing, Erwu Liu
Intelligent reflecting surface (IRS) is a novel burgeoning concept, which possesses advantages in enhancing wireless communication and user localization, while maintaining low hard…
Passive Beamforming Design and Channel Estimation for IRS Communication System with Few-Bit ADCs
Jingnan Li, Rui Wang, Erwu Liu
Utilizing intelligent reflecting surface (IRS) was proven to be efficient in improving the energy efficiency for wireless networks. In this paper, we investigate the passive beamfo…
Asymptotic Achievability of the Cramér-Rao Lower Bound of Channel Estimation for Reconfigurable Intelligent Surface Aided Communication Systems
Yiming Liu, Erwu Liu, Rui Wang +2
To achieve the joint active and passive beamforming gains in the reconfigurable intelligent surface assisted millimeter wave system, the reflected cascade channel needs to be accur…
Deep Deterministic Policy Gradient for Relay Selection and Power Allocation in Cooperative Communication Network
Yuanzhe Geng, Erwu Liu, Rui Wang +4
Perfect channel state information (CSI) is usually required when considering relay selection and power allocation in cooperative communication. However, it is difficult to get an a…
Reconfigurable Intelligent Surface Aided Wireless Localization
Yiming Liu, Erwu Liu, Rui Wang
The advantages of millimeter-wave and large antenna arrays technologies for accurate wireless localization received extensive attentions recently. However, how to further improve t…
Beamforming Design and Performance Evaluation for Reconfigurable Intelligent Surface Assisted Wireless Communication Systems With Non-Ideal Hardware
Yiming Liu, Erwu Liu, Rui Wang +2
Reconfigurable intelligent surface (RIS) can effectively control the wavefront of the impinging signals and has emerged as a cost-effective promising solution to improve the spectr…
Achievable Rate Analysis and Phase Shift Optimization on Intelligent Reflecting Surface with Hardware Impairments
Zhe Xing, Rui Wang, Jun Wu +1
Intelligent reflecting surface (IRS) is envisioned as a promising hardware solution to hardware cost and energy consumption in the fifth-generation (5G) mobile communication networ…
Energy Efficiency Analysis of Intelligent Reflecting Surface System with Hardware Impairments
Yiming Liu, Erwu Liu, Rui Wang
Recently, as explosive growth of mobile data traffic, the performance of wireless communication systems requires to be enhanced significantly in future. Intelligent reflecting surf…
Channel Estimation and Power Scaling Law of Large Reflecting Surface with Non-Ideal Hardware
Yiming Liu, Erwu Liu, Rui Wang +1
Large reflecting surface (LRS) has emerged as a new solution to improve the energy and spectrum efficiency of wireless communication system. Most existing studies were conducted wi…