469 citations · 3.4k across the 163 of their papers we have counts for
15 papers · 2 filters
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…
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…
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…
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…
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…
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…
Towards Ultra-Reliable Low-Latency Communications: Typical Scenarios, Possible Solutions, and Open Issues
Daquan Feng, Changyang She, Kai Ying +5
Ultra-reliable low-latency communications (URLLC) has been considered as one of the three new application scenarios in the \emph{5th Generation} (5G) \emph {New Radio} (NR), where…
Minimizing Age of Information in Cognitive Radio-based IoT Systems: Underlay or Overlay?
Yifan Gu, He Chen, Chao Zhai +2
We consider a cognitive radio-based Internet-of-Things (CR-IoT) network consisting of one primary IoT (PIoT) system and one secondary IoT (SIoT) system. The IoT devices of both the…
Multiplexing More Streams in the MU-MISO Downlink by Interference Exploitation Precoding
Ang Li, Christos Masouros, Yonghui Li +1
In this paper, we study the interference exploitation precoding for the scenario where the number of streams simultaneously transmitted by the base station (BS) is larger than that…
Energy Efficiency Optimization of Generalized Spatial Modulation with Sub-Connected Hybrid Precoding
Kai Chen, Jing Yang, Xiaohu Ge +3
Energy efficiency (EE) optimization of millimeter wave (mm-Wave) massive multiple-input multiple-output (MIMO) systems is emerging as an important challenge for the fifth generatio…
Performance Analysis of Non-Orthogonal Multicast in Two-tier Heterogeneous Networks
Yong Zhang, Bin Yang, Xiaohu Ge +1
With the explosive growth of mobile services, non-orthogonal broadcast/multicast transmissions can effectively improves spectrum efficiency. Nonorthogonal multiple access (NOMA) re…