590 citations · 1.9k across the 75 of their papers we have counts for
22 papers · 1 filter
Secrecy Performance Analysis of RIS-aided Communication System with Randomly Flying Eavesdroppers
Lai Wei, Kezhi Wang, Cunhua Pan +1
In this letter, we analyze the secrecy performance of a reconfigurable intelligent surface (RIS)-aided communication system with spatially random unmanned aerial vehicles (UAVs) ac…
Long-Term CSI-based Design for RIS-Aided Multiuser MISO Systems Exploiting Deep Reinforcement Learning
Hong Ren, Cunhua Pan, Liang Wang +2
In this paper, we study the transmission design for reconfigurable intelligent surface (RIS)-aided multiuser communication networks. Different from most of the existing contributio…
Statistical CSI-Based Transmission Design for Reconfigurable Intelligent Surface-aided Massive MIMO Systems with Hardware Impairments
Jianxin Dai, Feng Zhu, Cunhua Pan +2
We consider a reconfigurable intelligent surface (RIS)-aided massive multi-user multiple-input multiple-output (MIMO) communication system with transceiver hardware impairments (HW…
Two-Timescale Design for Reconfigurable Intelligent Surface-Aided Massive MIMO Systems with Imperfect CSI
Kangda Zhi, Cunhua Pan, Hong Ren +7
This paper investigates the two-timescale transmission design for reconfigurable intelligent surface (RIS)-aided massive multiple-input multiple-output (MIMO) systems, where the be…
Reconfigurable Intelligent Surface-Aided MISO Systems with Statistical CSI: Channel Estimation, Analysis and Optimization
Kangda Zhi, Cunhua Pan, Hong Ren +2
This paper investigates the reconfigurable reflecting surface (RIS)-aided multiple-input-single-output (MISO) systems with imperfect channel state information (CSI), where RIS-rela…
Ergodic Rate Analysis of Reconfigurable Intelligent Surface-Aided Massive MIMO Systems with ZF Detectors
Kangda Zhi, Cunhua Pan, Hong Ren +1
This letter investigates the reconfigurable intelligent surface (RIS)-aided massive multiple-input multiple-output (MIMO) systems with a two-timescale design. First, the zero-forci…
Reconfigurable Intelligent Surface aided Massive MIMO Systems with Low-Resolution DACs
Jianxin Dai, Yuanyuan Wang, Cunhua Pan +3
We investigate a reconfigurable intelligent surface (RIS)-aided multi-user massive multiple-input multi-output (MIMO) system where low-resolution digital-analog converters (DACs) a…
Secure Wireless Communication in RIS-Aided MISO Systems with Hardware Impairments
Gui Zhou, Cunhua Pan, Hong Ren +2
In practice, residual transceiver hardware impairments inevitably lead to distortion noise which causes the performance loss. In this paper, we study the robust transmission design…
Statistical CSI-based Design for Reconfigurable Intelligent Surface-aided Massive MIMO Systems with Direct Links
Kangda Zhi, Cunhua Pan, Hong Ren +1
This paper investigates the performance of reconfigurable intelligent surface (RIS)-aided massive multiple-input multiple-output (MIMO) systems with direct links, and the phase shi…
Fairness-Oriented Multiple RISs-Aided MmWave Transmission: Stochastic Optimization Methods
Gui Zhou, Cunhua Pan, Hong Ren +2
In millimeter wave (mmWave) systems, it is challenging to ensure the reliable connectivity of communications due to its sensitivity to the presence of blockages. In order to improv…
Sliding Differential Evolution Scheduling for Federated Learning in Bandwidth-Limited Networks
Yifan Luo, Jindan Xu, Wei Xu +1
Federated learning (FL) in a bandwidth-limited network with energy-limited user equipments (UEs) is under-explored. In this paper, to jointly save energy consumed by the battery-li…
Sum Rate Maximization for Intelligent Reflecting Surface Assisted Terahertz Communications
Yijin Pan, Kezhi Wang, Cunhua Pan +2
In this paper, an intelligent reflecting surface (IRS) is deployed to assist the terahertz (THz) communications. The molecular absorption causes path loss peaks to appear in the TH…
Cost Minimization for Cooperative Computation Framework in MEC Networks
Yijin Pan, Cunhua Pan, Kezhi Wang +2
In this paper, a cooperative task computation framework exploits the computation resource in UEs to accomplish more tasks meanwhile minimizes the power consumption of UEs. The syst…
Analog Versus Hybrid Precoding for Multiuser Massive MIMO with Quantized CSI Feedback
Yaqiong Zhao, Wei Xu, Jindan Xu +3
In this letter, we study the performance of a downlink multiuser massive multiple-input multiple-output (MIMO) system with sub-connected structure over limited feedback channels. T…
Spectral and Energy Efficiency of IRS-Assisted MISO Communication with Hardware Impairments
Shaoqing Zhou, Wei Xu, Kezhi Wang +2
In this letter, we analyze the spectral and energy efficiency of an intelligent reflecting surface (IRS)-assisted multiple-input single-output (MISO) downlink system with hardware…
A Novel Cross Entropy Approach for Offloading Learning in Mobile Edge Computing
Shuhan Zhu, Wei Xu, Lisheng Fan +2
In this paper, we propose a novel offloading learning approach to compromise energy consumption and latency in multi-tier network with mobile edge computing. In order to solve this…
Resource Allocation Using Gradient Boosting Aided Deep Q-Network for IoT in C-RANs
Yifan Luo, Jiawei Yang, Wei Xu +2
In this paper, we investigate dynamic resource allocation (DRA) problems for Internet of Things (IoT) in real-time cloud radio access networks (C-RANs), by combining gradient boost…
Bit-level Optimized Neural Network for Multi-antenna Channel Quantization
Chao Lu, Wei Xu, Shi Jin +1
Quantized channel state information (CSI) plays a critical role in precoding design which helps reap the merits of multiple-input multiple-output (MIMO) technology. In order to red…
Ergodic Rate Analysis of Cooperative Ambient Backscatter Communication
Shaoqing Zhou, Wei Xu, Kezhi Wang +3
Ambient backscatter communication has shown great potential in the development of future wireless networks. It enables a backscatter transmitter (BTx) to send information directly…
Energy Efficient Resource Allocation in UAV-Enabled Mobile Edge Computing Networks
Zhaohui Yang, Cunhua Pan, Kezhi Wang +1
In this paper, we consider the sum power minimization problem via jointly optimizing user association, power control, computation capacity allocation and location planning in a mob…
MIMO Channel Information Feedback Using Deep Recurrent Network
Chao Lu, Wei Xu, Hong Shen +2
In a multiple-input multiple-output (MIMO) system, the availability of channel state information (CSI) at the transmitter is essential for performance improvement. Recent convoluti…
Novel energy detection using uniform noise distribution
Kezhi Wang, Yunfei Chen, Jiming Chen
Energy detection is widely used in cognitive radio due to its low complexity. One fundamental challenge is that its performance degrades in the presence of noise uncertainty, which…