249 citations · 1.8k across the 166 of their papers we have counts for
26 papers · 1 filter
Resource Allocation for STAR-RIS-enhanced Metaverse Systems with Augmented Reality
Sun Mao, Lei Liu, Kun Yang +3
Augmented reality (AR)-enabled Metaverse is a promising technique to provide immersive service experience for mobile users. However, the limited network resources and unpredictable…
Multi-User Covert Communications via Intelligent Spectrum Control
Yujie Ling, Zan Li, Lei Guan +2
This paper investigates the performance of multi-user covert communications over a fixed bandwidth in a multi-cell scenario with both eavesdroppers and malicious jammers. We propos…
Beamforming Design for Beyond Diagonal RIS-Aided Cell-Free Massive MIMO Systems
Yizhuo Li, Jiakang Zheng, Bokai Xu +4
Reconfigurable intelligent surface (RIS)-aided cell-free (CF) massive multiple-input multiple-output (mMIMO) is a promising technology for further improving spectral efficiency (SE…
AoI-aware Sensing Scheduling and Trajectory Optimization for Multi-UAV-assisted Wireless Backscatter Networks
Yusi Long, Songhan Zhao, Shimin Gong +4
This paper considers multiple unmanned aerial vehicles (UAVs) to assist sensing data transmissions from the ground users (GUs) to a remote base station (BS). Each UAV collects sens…
Random Aggregate Beamforming for Over-the-Air Federated Learning in Large-Scale Networks
Chunmei Xu, Shengheng Liu, Yongming Huang +2
At present, there is a trend to deploy ubiquitous artificial intelligence (AI) applications at the edge of the network. As a promising framework that enables secure edge intelligen…
A Framework on Complex Matrix Derivatives with Special Structure Constraints for Wireless Systems
Xin Ju, Shiqi Gong, Nan Zhao +3
Matrix-variate optimization plays a central role in advanced wireless system designs. In this paper, we aim to explore optimal solutions of matrix variables under two special struc…
RIS-Aided Cell-Free Massive MIMO Systems for 6G: Fundamentals, System Design, and Applications
Enyu Shi, Jiayi Zhang, Hongyang Du +5
An introduction of intelligent interconnectivity for people and things has posed higher demands and more challenges for sixth-generation (6G) networks, such as high spectral effici…
Rate-Splitting for CF Massive MIMO Systems With Channel Aging
Jiakang Zheng, Jiayi Zhang, Hongyang Du +3
The cell-free (CF) massive multiple-input multiple-output (MIMO) system is considered a cutting-edge technology in next-generation mobile communication due to its ability to provid…
Integrated Sensing-Communication-Computation for Over-the-Air Edge AI Inference
Zeming Zhuang, Dingzhu Wen, Yuanming Shi +3
Edge-device co-inference refers to deploying well-trained artificial intelligent (AI) models at the network edge under the cooperation of devices and edge servers for providing amb…
Imperfect CSI: A Key Factor of Uncertainty to Over-the-Air Federated Learning
Jiacheng Yao, Zhaohui Yang, Wei Xu +2
Over-the-air computation (AirComp) has recently been identified as a prominent technique to enhance communication efficiency of wireless federated learning (FL). This letter invest…
GoMORE: Global Model Reuse for Resource-Constrained Wireless Federated Learning
Jiacheng Yao, Zhaohui Yang, Wei Xu +2
Due to the dynamics of wireless environment and limited bandwidth, wireless federated learning (FL) is challenged by frequent transmission errors and incomplete aggregation from de…
Achieving Covert Communication in Large-Scale SWIPT-Enabled D2D Networks
Shaohan Feng, Xiao Lu, Dusit Niyato +2
We aim to secure a large-scale device-to-device (D2D) network against adversaries. The D2D network underlays a downlink cellular network to reuse the cellular spectrum and is enabl…
The Meta Distribution of SINR in UAV-Assisted Cellular Networks
Minwei Shi, Kai Yang, Dusit Niyato +3
Mounting compact and lightweight base stations on unmanned aerial vehicles (UAVs) is a cost-effective and flexible solution to provide seamless coverage on the existing terrestrial…
Performance Optimization for Semantic Communications: An Attention-based Reinforcement Learning Approach
Yining Wang, Mingzhe Chen, Tao Luo +4
In this paper, a semantic communication framework is proposed for textual data transmission. In the studied model, a base station (BS) extracts the semantic information from textua…
Stochastic Coded Offloading Scheme for Unmanned Aerial Vehicle-Assisted Edge Computing
Wei Chong Ng, Wei Yang Bryan Lim, Zehui Xiong +4
Unmanned aerial vehicles (UAVs) have gained wide research interests due to their technological advancement and high mobility. The UAVs are equipped with increasingly advanced capab…
Performance Analysis and Optimization for Jammer-Aided Multi-Antenna UAV Covert Communication
Hongyang Du, Dusit Niyato, Yuan-ai Xie +3
Unmanned aerial vehicles (UAVs) have attracted a lot of research attention because of their high mobility and low cost in serving as temporary aerial base stations (BSs) and provid…
Throughput Maximization for IRS-Assisted Wireless Powered Hybrid NOMA and TDMA
Dingcai Zhang, Qingqing Wu, Miao Cui +2
The high reflect beamforming gain of the intelligent reflecting surface (IRS) makes it appealing not only for wireless information transmission but also for wireless power transfer…
Ambient Backscatter-Assisted Wireless-Powered Relaying
Xiao Lu, Dusit Niyato, Hai Jiang +2
Internet-of-Things (IoT) is featured with low-power communications among a massive number of ubiquitously-deployed and energy-constrained electronics, e.g., sensors and actuators.…
Performance and Optimization of Reconfigurable Intelligent Surface Aided THz Communications
Hongyang Du, Jiayi Zhang, Ke Guan +4
TeraHertz (THz) communications can satisfy the high data rate demand with massive bandwidth. However, severe path attenuation and hardware imperfection greatly alleviate its perfor…
Dynamic Network Service Selection in IRS-Assisted Wireless Networks: A Game Theory Approach
Nguyen Cong Luong, Nguyen Thi Thanh Van, Feng Shaohan +3
In this letter, we investigate the dynamic network service provider (SP) and service selection in an intelligent reflecting surface (IRS)-assisted wireless network. In the network,…
Capitalizing Backscatter-Aided Hybrid Relay Communications with Wireless Energy Harvesting
Shimin Gong, Yuze Zou, Dinh Thai Hoang +3
In this work, we employ multiple energy harvesting relays to assist information transmission from a multi-antenna hybrid access point (HAP) to a receiver. All the relays are wirele…
IRS-based Wireless Jamming Attacks: When Jammers can Attack without Power
Bin Lyu, Dinh Thai Hoang, Shimin Gong +2
This paper proposes to use Intelligent Reflecting Surface (IRS) as a green jammer to attack a legitimate communication without using any internal energy to generate jamming signals…
Coverage Analysis of Integrated Sub-6GHz-mmWave Cellular Networks with Hotspots
Minwei Shi, Kai Yang, Zhu Han +1
Deploying Sub-6GHz networks together with millimeter wave (mmWave) is a promising solution to achieve high data rates in traffic hotspots while guaranteeing sufficient coverage, wh…
Distributed Learning for Channel Allocation Over a Shared Spectrum
S. M. Zafaruddin, Ilai Bistritz, Amir Leshem +1
Channel allocation is the task of assigning channels to users such that some objective (e.g., sum-rate) is maximized. In centralized networks such as cellular networks, this task i…