444 citations · 1.7k across the 86 of their papers we have counts for
87 papers
Over-the-Air Federated Learning in MIMO Cloud-RAN Systems
Haoming Ma, Xiaojun Yuan, Zhi Ding
To address the limitations of traditional over-the-air federated learning (OA-FL) such as limited server coverage and low resource utilization, we propose an OA-FL in MIMO cloud ra…
Variational Bayesian Multiuser Tracking for Reconfigurable Intelligent Surface Aided MIMO-OFDM Systems
Boyu Teng, Xiaojun Yuan, Rui Wang
Reconfigurable intelligent surface (RIS) has attracted enormous interest for its potential advantages in assisting both wireless communication and environmental sensing. In this pa…
Cooperative Multi-Cell Massive Access with Temporally Correlated Activity
Weifeng Zhu, Meixia Tao, Xiaojun Yuan +2
This paper investigates the problem of activity detection and channel estimation in cooperative multi-cell massive access systems with temporally correlated activity, where all acc…
Matrix Factorization Based Blind Bayesian Receiver for Grant-Free Random Access in mmWave MIMO mMTC
Zhengdao Yuan, Fei Liu, Qinghua Guo +3
Grant-free random access is promising for massive connectivity with sporadic transmissions in massive machine type communications (mMTC), where the hand-shaking between the access…
Over-the-Air Federated Learning Over MIMO Channels: A Sparse-Coded Multiplexing Approach
Chenxi Zhong, Xiaojun Yuan
The communication bottleneck of over-the-air federated learning (OA-FL) lies in uploading the gradients of local learning models. In this paper, we study the reduction of the commu…
Simultaneous Active and Passive Information Transfer for RIS-Aided MIMO Systems: Iterative Decoding and Evolution Analysis
Wenjun Jiang, Xiaojun Yuan
This paper investigates the potential of reconfigurable intelligent surface (RIS) for passive information transfer in a RIS-aided multiple-input multiple-output (MIMO) system. We p…
OFDM-Based Massive Connectivity for LEO Satellite Internet of Things
Yong Zuo, Mingyang Yue, Mingchen Zhang +3
Low earth orbit (LEO) satellite has been considered as a potential supplement for the terrestrial Internet of Things (IoT). In this paper, we consider grant-free non-orthogonal ran…
Message Passing-Based Joint User Activity Detection and Channel Estimation for Temporally-Correlated Massive Access
Weifeng Zhu, Meixia Tao, Xiaojun Yuan +1
This paper studies the user activity detection and channel estimation problem in a temporally-correlated massive access system where a very large number of users communicate with a…
RIS-Aided Multiuser MIMO-OFDM with Linear Precoding and Iterative Detection: Analysis and Optimization
Mingyang Yue, Lei Liu, Xiaojun Yuan
In this paper, we consider a reconfigurable intelligence surface (RIS) aided uplink multiuser multi-input multi-output (MIMO) orthogonal frequency division multiplexing (OFDM) syst…
Joint Localization and Information Transfer for Reconfigurable Intelligent Surface Aided Full-Duplex Systems
Zhichao Shao, Xiaojun Yuan, Wei Zhang +1
In this work, we investigate a reconfigurable intelligent surface (RIS) aided integrated sensing and communication scenario, where a base station (BS) communicates with multiple de…
Joint Active and Passive Beamforming Design for Reconfigurable Intelligent Surface Enabled Integrated Sensing and Communication
Zhe Xing, Rui Wang, Xiaojun Yuan
To exploit the potential of the RIS in supporting ISAC, this paper proposes a novel joint active and passive beamforming design for RIS-enabled ISAC system in consideration of the…
Hybrid Offline-Online Design for Reconfigurable Intelligent Surface Aided UAV Communication
Kaiyuan Tian, Bin Duo, Xiaojun Yuan +1
This letter considers the reconfigurable intelligent surface (RIS)-aided unmanned aerial vehicle (UAV) communication systems in urban areas under the general Rician fading channel.…
Over-the-Air Federated Multi-Task Learning via Model Sparsification and Turbo Compressed Sensing
Haoming Ma, Xiaojun Yuan, Zhi Ding +2
To achieve communication-efficient federated multitask learning (FMTL), we propose an over-the-air FMTL (OAFMTL) framework, where multiple learning tasks deployed on edge devices s…
Receiver Design for MIMO Unsourced Random Access with SKP Coding
Zeyu Han, Xiaojun Yuan, Chongbin Xu +1
In this letter, we extend the sparse Kronecker-product (SKP) coding scheme, originally designed for the additive white Gaussian noise (AWGN) channel, to multiple input multiple out…
Federated Learning with Lossy Distributed Source Coding: Analysis and Optimization
Huiyuan Yang, Tian Ding, Xiaojun Yuan
Recently, federated learning (FL), which replaces data sharing with model sharing, has emerged as an efficient and privacy-friendly machine learning (ML) paradigm. One of the main…
RIS Partitioning Based Scalable Beamforming Design for Large-Scale MIMO: Asymptotic Analysis and Optimization
Chang Cai, Xiaojun Yuan, Ying-Jun Angela Zhang
In next-generation wireless networks, reconfigurable intelligent surface (RIS)-assisted multiple-input multiple-output (MIMO) systems are foreseeable to support a large number of a…
Energy-Efficient UAV Communications: A Generalised Propulsion Energy Consumption Model
Xinhong Dai, Bin Duo, Xiaojun Yuan +1
This paper proposes a generalised propulsion energy consumption model (PECM) for rotary-wing ummanned aerial vehicles (UAVs) under the consideration of the practical thrust-to-weig…
Bayesian User Localization and Tracking for Reconfigurable Intelligent Surface Aided MIMO Systems
Boyu Teng, Xiaojun Yuan, Rui Wang +1
In this paper, we study the user localization and tracking problem in the reconfigurable intelligent surface (RIS) aided multiple-input multiple-output (MIMO) system, where a multi…
Over-the-Air Federated Multi-Task Learning Over MIMO Multiple Access Channels
Chenxi Zhong, Huiyuan Yang, Xiaojun Yuan
With the explosive growth of data and wireless devices, federated learning (FL) over wireless medium has emerged as a promising technology for large-scale distributed intelligent s…
Intelligent Reflecting Surface Aided MIMO with Cascaded LoS Links: Channel Modelling and Full Multiplexing Region
Mingchen Zhang, Xiaojun Yuan
This work studies the modelling and the optimization of intelligent reflecting surface (IRS) assisted multiple-input multiple-output (MIMO) systems through cascaded line-of-sight (…
Elevation Angle-Dependent 3D Trajectory Design for Aerial RIS-aided Communication
Yifan Liu, Bin Duo, Qingqing Wu +3
This paper investigates an aerial reconfigurable intelligent surface (RIS)-aided communication system under the probabilistic line-of-sight (LoS) channel, where an unmanned aerial…
Over-the-Air Federated Multi-Task Learning
Haoming Ma, Xiaojun Yuan, Dian Fan +3
In this letter, we introduce over-the-air computation into the communication design of federated multi-task learning (FMTL), and propose an over-the-air federated multi-task learni…
Full-Dimensional Rate Enhancement for UAV-Enabled Communications via Intelligent Omni-Surface
Yifan Liu, Bin Duo, Qingqing Wu +2
This paper investigates the achievable rate maximization problem of a downlink unmanned aerial vehicle (UAV)-enabled communication system aided by an intelligent omni-surface (IOS)…
Joint Beamforming and Reconfigurable Intelligent Surface Design for Two-Way Relay Networks
Jun Wang, Ying-Chang Liang, Jingon Joung +2
In this paper, we consider a reconfigurable intelligent surface (RIS)-assisted two-way relay network, in which two users exchange information through the base station (BS) with the…