240 citations · 604 across the 21 of their papers we have counts for
21 papers
High-Resolution Channel Estimation for Intelligent Reflecting Surface-Assisted MmWave Communications
C. Jia, J. Cheng, H. Gao +1
In this paper, we study the high-resolution channel estimation problem for intelligent reflecting surface (IRS)-assisted millimeter wave (mmWave) multiple-input-multiple-output (MI…
Codebook-Based Beam Tracking for Conformal ArrayEnabled UAV MmWave Networks
Jinglin Zhang, Wenjun Xu, Hui Gao +3
Millimeter wave (mmWave) communications can potentially meet the high data-rate requirements of unmanned aerial vehicle (UAV) networks. However, as the prerequisite of mmWave commu…
OTFS Based Receiver Scheme With Multi-Antennas in High-Mobility V2X Systems
Junqiang Cheng, Chenglu Jia, Hui Gao +2
Vehicle-to-everything (V2X) is considered as one of the most important applications of future wireless communication networks. However, the Doppler effect caused by the vehicle mob…
Machine Learning Empowered Beam Management for Intelligent Reflecting Surface Assisted MmWave Networks
Chenglu Jia, Hui Gao, Na Chen +1
Recently, intelligent reflecting surface (IRS) assisted mmWave networks are emerging, which bear the potential to address the blockage issue of the millimeter wave (mmWave) communi…
Low-Complexity Linear Equalization for OTFS Systems with Rectangular Waveforms
Wenjun Xu, Tingting Zou, Hui Gao +3
Orthogonal time frequency space (OTFS) is a promising technology for high-mobility wireless communications. However, the equalization realization in practical OTFS systems is a gre…
Low-Complexity Linear Equalizers for OTFS Exploiting Two-Dimensional Fast Fourier Transform
Junqiang Cheng, Hui Gao, Wenjun Xu +2
Orthogonal time frequency space (OTFS) modulation can effectively convert a doubly dispersive channel into an almost non-fading channel in the delay-Doppler domain. However, one cr…
Fixed Region Beamforming using Frequency Diverse Subarray for Secure Mmwave Wireless Communications
Yuanquan Hong, Xiaojun Jing, Hui Gao +1
Millimeter-wave (mmWave) using conventional phased array (CPA) enables highly directional and fixed angular beamforming (FAB), therefore enhancing physical layer security (PLS) in…
Blind Channel Separation in Massive MIMO System under Pilot Spoofing and Jamming Attack
Ruohan Cao, Tan F. Wong, Hui Gao +2
We consider a channel separation approach to counter the pilot attack in a massive MIMO system, where malicious users (MUs) perform pilot spoofing and jamming attack (PSJA) in upli…
A Belief Propagation Based Framework for Soft Multiple-Symbol Differential Detection
Chanfei Wang, Tiejun Lv, Hui Gao +1
Soft noncoherent detection, which relies on calculating the \textit{a posteriori} probabilities (APPs) of the bits transmitted with no channel estimation, is imperative for achievi…
Detecting Byzantine Attacks Without Clean Reference
Ruohan Cao, Tan F. Wong, Tiejun Lv +2
We consider an amplify-and-forward relay network composed of a source, two relays, and a destination. In this network, the two relays are untrusted in the sense that they may perfo…
Space-Time Hierarchical-Graph Based Cooperative Localization in Wireless Sensor Networks
Tiejun Lv, Hui Gao, Xiaopeng Li +2
It has been shown that cooperative localization is capable of improving both the positioning accuracy and coverage in scenarios where the global positioning system (GPS) has a poor…
Phase-Rotation-Aided Relay Selection in Two-Way Decode-and-Forward Relay Networks
Ruohan Cao, Hui Gao, Tiejun Lv +2
This paper proposes a relay selection scheme that aims to improve the end-to-end symbol error rate (SER) performance of a two-way relay network (TWRN). The TWRN consists of two sin…
Joint Multiple Symbol Differential Detection and Channel Decoding for Noncoherent UWB Impulse Radio by Belief Propagation
Taotao Wang, Tiejun Lv, Hui Gao +1
This paper proposes a belief propagation (BP) message passing algorithm based joint multiple symbol differential detection (MSDD) and channel decoding scheme for noncoherent differ…
Low-Complexity Downlink User Selection for Massive MIMO Systems
Haijing Liu, Hui Gao, Shaoshi Yang +1
In this paper we propose a pair of low-complexity user selection schemes with zero-forcing precoding for multiuser massive MIMO downlink systems, in which the base station is equip…
Secrecy Transmit Beamforming for Heterogeneous Networks
Tiejun Lv, Hui Gao, Shaoshi Yang
In this paper, we pioneer the study of physical-layer security in heterogeneous networks (HetNets). We investigate secure communications in a two-tier downlink HetNet, which compri…
Distributed User Scheduling for MIMO-Y Channel
Hui Gao, Chau Yuen, Yuan Ren +2
In this paper, distributed user scheduling schemes are proposed for the multi-user MIMO-Y channel, where three -antenna users () are selected from three clust…
An ESPRIT-Based Approach for 2-D Localization of Incoherently Distributed Sources in Massive MIMO Systems
Anzhong Hu, Tiejun Lv, Hui Gao +2
In this paper, an approach of estimating signal parameters via rotational invariance technique (ESPRIT) is proposed for two-dimensional (2-D) localization of incoherently distribut…
A Novel Scheme for Downlink Opportunistic Interference Alignment
Haijing Liu, Hui Gao, Wei Long +1
In this paper we propose a downlink codebook-based opportunistic interference alignment (OIA) in a three-cell MIMO system. A codebook composed of multiple transmit vector sets is u…
Low-Complexity Transmission Mode Selection in MU-MIMO Systems
Haijing Liu, Hui Gao, Anzhong Hu +1
We propose a low-complexity transmission strategy in multi-user multiple-input multiple-output downlink systems. The adaptive strategy adjusts the precoding methods, denoted as the…
Limited Feedback-Based Interference Alignment for Interfering Multi-Access Channels
Hui Gao, Tiejun Lv, Di Fang +2
A limited feedback-based interference alignment (IA) scheme is proposed for the interfering multi-access channel (IMAC). By employing a novel performance-oriented quantization stra…
BER Analysis of Decision-Feedback Multiple Symbol Detection in Noncoherent MIMO Ultra-Wideband Systems
Taotao Wang, Tiejun Lv, Hui Gao +1
In this paper, we investigate noncoherent multiple-input multiple-output (MIMO) ultra-wideband (UWB) systems where the signal is encoded by differential space-time block code (DSTB…