469 citations · 3.4k across the 163 of their papers we have counts for
36 papers · 1 filter
Reconfigurable Intelligent Surfaces based RF Sensing: Design, Optimization, and Implementation
Jingzhi Hu, Hongliang Zhang, Boya Di +5
Using radio-frequency (RF) sensing techniques for human posture recognition has attracted growing interest due to its advantages of pervasiveness, contact-free observation, and pri…
Signal Design for AF Relay Systems using Superposition Coding and Finite-Alphabet Inputs
Bohai Li, He Chen, Zheng Dong +2
This paper focuses on the signal design in a Gaussian amplify-and-forward (AF) relay system with superposition coding (SC) being applied at the relay, which allows the source and r…
Minimizing Age of Information for Real-Time Monitoring in Resource-Constrained Industrial IoT Networks
Qian Wang, He Chen, Yonghui Li +2
This paper considers an Industrial Internet of Thing (IIoT) system with a source monitoring a dynamic process with randomly generated status updates. The status updates are sent to…
Hybrid Precoding Design for Reconfigurable Intelligent Surface aided mmWave Communication Systems
Chandan Pradhan, Ang Li, Lingyang Song +2
In this letter, we focus on the hybrid precoding (HP) design for the reconfigurable intelligent surface (RIS) aided multi-user (MU) millimeter wave (mmWave) communication systems.…
Multi-Antenna Aided Secrecy Beamforming Optimization for Wirelessly Powered HetNets
Shiqi Gong, Shaodan Ma, Chengwen Xing +2
The new paradigm of wirelessly powered two-tier heterogeneous networks (HetNets) is considered in this paper. Specifically, the femtocell base station (FBS) is powered by a power b…
Dynamic HARQ with Guaranteed Delay
Mahyar Shirvanimoghaddam, Hossein Khayami, Yonghui Li +1
In this paper, a dynamic-hybrid automatic repeat request (D-HARQ) scheme with guaranteed delay performance is proposed. As opposed to the conventional HARQ that the maximum number…
Computation Offloading for IoT in C-RAN: Optimization and Deep Learning
Chandan Pradhan, Ang Li, Changyang She +2
We consider computation offloading for Internet-of-things (IoT) applications in multiple-input-multiple-output (MIMO) cloud-radio-access-network (C-RAN). Due to the limited battery…
Prediction and Communication Co-design for Ultra-Reliable and Low-Latency Communications
Zhanwei Hou, Changyang She, Yonghui Li +2
Ultra-reliable and low-latency communications (URLLC) are considered as one of three new application scenarios in the fifth generation cellular networks. In this work, we aim to re…
Over-the-Air Computation Systems: Optimization, Analysis and Scaling Laws
Wanchun Liu, Xin Zang, Yonghui Li +1
For future Internet of Things (IoT)-based Big Data applications (e.g., smart cities/transportation), wireless data collection from ubiquitous massive smart sensors with limited spe…
A New Small-World IoT Routing Mechanism based on Cayley Graphs
Yuna Jiang, Xiaohu Ge, Yi Zhong +2
An increasing number of low-power Internet of Things (IoT) devices will be widely deployed in the near future. Considering the short-range communication of low-power devices, multi…
On the Age of Information of Short-Packet Communications with Packet Management
Rui Wang, Yifan Gu, He Chen +2
In this paper, we consider a point-to-point wireless communication system. The source monitors a physical process and generates status update packets according to a Poisson process…
Interference Exploitation 1-Bit Massive MIMO Precoding: A Partial Branch-and-Bound Solution with Near-Optimal Performance
Ang Li, Fan Liu, Christos Masouros +2
In this paper, we focus on 1-bit precoding approaches for downlink massive multiple-input multiple-output (MIMO) systems, where we exploit the concept of constructive interference…
Minimum-Latency FEC Design with Delayed Feedback: Mathematical Modeling and Efficient Algorithms
Xiaoli Xu, Yong Zeng, Yonghui Li +1
In this paper, we consider the packet-level forward error correction (FEC) code design, without feedback or with delayed feedback, for achieving the minimum end-to-end latency, i.e…
Complex-BP-Neural-Network-based Hybrid Precoding for Millimeter Wave Multiuser Massive MIMO Systems
Kai Chen, Jing Yang, Xiaohu Ge +1
The high energy consumption of massive multi-input multi-out (MIMO) system has become a prominent problem in the millimeter wave(mm-Wave) communication scenario. The hybrid precodi…
A Learning-Based Two-Stage Spectrum Sharing Strategy with Multiple Primary Transmit Power Levels
Rui Zhang, Peng Cheng, Zhuo Chen +2
Multi-parameter cognition in a cognitive radio network (CRN) provides a more thorough understanding of the radio environments, and could potentially lead to far more intelligent an…
Interference Exploitation via Symbol-Level Precoding: Overview, State-of-the-Art and Future Directions
Ang Li, Danilo Spano, Jevgenij Krivochiza +7
Interference is traditionally viewed as a performance limiting factor in wireless communication systems, which is to be minimized or mitigated. Nevertheless, a recent line of work…
Wireless Networked Control Systems with Coding-Free Data Transmission for Industrial IoT
Wanchun Liu, Petar Popovski, Yonghui Li +1
Wireless networked control systems for the Industrial Internet of Things (IIoT) require low latency communication techniques that are very reliable and resilient. In this paper, we…
Optimal Downlink-Uplink Scheduling of Wireless Networked Control for Industrial IoT
Kang Huang, Wanchun Liu, Yonghui Li +2
This paper considers a wireless networked control system (WNCS) consisting of a dynamic system to be controlled (i.e., a plant), a sensor, an actuator and a remote controller for m…
Beam Allocation for Millimeter-Wave MIMO Tracking Systems
Deyou Zhang, Ang Li, He Chen +4
In this paper, we propose a new beam allocation strategy aiming to maximize the average successful tracking probability (ASTP) of time-varying millimeter-wave MIMO systems. In cont…
Cross-layer Design for Mission-Critical IoT in Mobile Edge Computing Systems
Changyang She, Yifan Duan, Guodong Zhao +3
In this work, we propose a cross-layer framework for optimizing user association, packet offloading rates, and bandwidth allocation for Mission-Critical Internet-of-Things (MC-IoT)…
Real-Time Remote Estimation with Hybrid ARQ in Wireless Networked Control
Kang Huang, Wanchun Liu, Mahyar Shirvanimoghaddam +2
Real-time remote estimation is critical for mission-critical applications including industrial automation, smart grid and tactile Internet. In this paper, we propose a hybrid autom…
Hybrid Precoder and Combiner for Imperfect Beam Alignment in mmWave MIMO Systems
Chandan Pradhan, Ang Li, Li Zhuo +2
In this letter, we aim to design a robust hybrid precoder and combiner against beam misalignment in millimeter-wave (mmWave) communication systems. We consider the inclusion of the…
Robust Hybrid Precoding for Beam Misalignment in Millimeter-Wave Communications
Chandan Pradhan, Ang Li, Li Zhuo +2
In this paper, we focus on the phenomenon of beam misalignment in Millimeter-wave (mmWave) multi-receiver communication systems, and propose robust hybrid precoding designs that al…
Neural Networks in Hybrid Precoding for Millimeter Wave Massive MIMO Systems
Jing Yang, Kai Chen, Xiaohu Ge +2
Neural networks have been applied to the physical layer of wireless communication systems to solve complex problems. In millimeter wave (mmWave) massive multiple-input multiple-out…