516 citations · 1.3k across the 22 of their papers we have counts for
22 papers
Multi-Carrier Modulation: An Evolution from Time-Frequency Domain to Delay-Doppler Domain
Hai Lin, Jinhong Yuan, Wei Yu +2
The recently proposed orthogonal delay-Doppler division multiplexing (ODDM) modulation, which is a delay-Doppler (DD) domain multi-carrier (DDMC) modulation scheme based on the DD…
YOLO: An Efficient Terahertz Band Integrated Sensing and Communications Scheme with Beam Squint
Hongliang Luo, Feifei Gao, Hai Lin +2
Using communications signals for dynamic target sensing is an important component of integrated sensing and communications (ISAC). In this paper, we propose to utilize the beam squ…
On Delay-Doppler Plane Orthogonal Pulse
Hai Lin, Jinhong Yuan
In this paper, we analyze the recently discovered delay-Doppler plane orthogonal pulse (DDOP), which is essential for delay-Doppler plane multi-carrier modulation waveform. In part…
Error Performance of Rectangular Pulse-shaped OTFS with Practical Receivers
Cheng Shen, Jinhong Yuan, Hai Lin
In this letter, we investigate error performance of rectangular pulse-shaped orthogonal time frequency space (OTFS) modulation with a practical receiver. Specifically, we consider…
Multicarrier Modulation on Delay-Doppler Plane: Achieving Orthogonality with Fine Resolutions
Hai Lin, Jinhong Yuan
In this paper, we investigate the design of a novel multicarrier (MC) modulation on delay-Doppler (DD) plane, to couple the modulated signal with a doubly-selective channel having…
Orthogonal Delay-Doppler Division Multiplexing Modulation
Hai Lin, Jinhong Yuan
Inspired by the orthogonal time frequency space (OTFS) modulation, in this paper, we consider designing a multicarrier (MC) modulation on delay-Doppler (DD) plane, to couple the mo…
Deep Reinforcement Learning for Joint Beamwidth and Power Optimization in mmWave Systems
Jiabao Gao, Caijun Zhong, Xiaoming Chen +2
This paper studies the joint beamwidth and transmit power optimization problem in millimeter wave communication systems. A deep reinforcement learning based approach is proposed. S…
Unsupervised Learning for Passive Beamforming
Jiabao Gao, Caijun Zhong, Xiaoming Chen +2
Reconfigurable intelligent surface (RIS) has recently emerged as a promising candidate to improve the energy and spectral efficiency of wireless communication systems. However, the…
An Overview of Enhanced Massive MIMO with Array Signal Processing Techniques
Mingjin Wang, Feifei Gao, Shi Jin +1
In the past ten years, there have been tremendous research progresses on massive MIMO systems, most of which stand from the communications viewpoint. A new trend of investigating m…
Beam Squint and Channel Estimation for Wideband mmWave Massive MIMO-OFDM Systems
Bolei Wang, Mengnan Jian, Feifei Gao +3
With the increasing scale of antenna arrays in wideband millimeter-wave (mmWave) communications, the physical propagation delays of electromagnetic waves traveling across the whole…
Design of Non-Orthogonal Beamspace Multiple Access for Cellular Internet-of-Things
Rundong Jia, Xiaoming Chen, Caijun Zhong +3
In this paper, we study the problem of massive connections over limited radio spectrum for the cellular Internet-of-Things (IoT) in the fifth-generation (5G) wireless network. To a…
High-Mobility Wideband Massive MIMO Communications: Doppler Compensation, Analysis and Scaling Law
Wei Guo, Weile Zhang, Pengcheng Mu +2
In this paper, we apply angle-domain Doppler compensation for high-mobility wideband massive multi-input multi-output (MIMO) uplink transmission. The time-varying multipath channel…
Symbol Detection of Ambient Backscatter Systems with Manchester Coding
Qin Tao, Caijun Zhong, Hai Lin +1
Ambient backscatter communication is a newly emerged paradigm, which utilizes the ambient radio frequency (RF) signal as the carrier to reduce the system battery requirement, and i…
Time Varying Channel Tracking with Spatial and Temporal BEM for Massive MIMO Systems
Jianwei Zhao, Hongxiang Xie, Feifei Gao +3
In this paper, we propose a channel tracking method for massive multi-input and multi-output systems under both time-varying and spatial-varying circumstance. Exploiting the charac…
Robust Beamforming for Physical Layer Security in BDMA Massive MIMO
Fengchao Zhu, Feifei Gao, Hai Lin +2
In this paper, we design robust beamforming to guarantee the physical layer security for a multiuser beam division multiple access (BDMA) massive multiple-input multiple-output (MI…
Spatial- and Frequency-Wideband Effects in Millimeter-Wave Massive MIMO Systems
Bolei Wang, Feifei Gao, Shi Jin +2
When there are a large number of antennas in massive MIMO systems, the transmitted wideband signal will be sensitive to the physical propagation delay of electromagnetic waves acro…
Full-Duplex Massive MIMO Relaying Systems with Low-Resolution ADCs
Chuili Kong, Caijun Zhong, Shi Jin +3
This paper considers a multipair amplify-and-forward massive MIMO relaying system with low-resolution ADCs at both the relay and destinations. The channel state information (CSI) a…
Proactive Eavesdropping in Relaying Systems
Xin Jiang, Hai Lin, Caijun Zhong +2
This paper investigates the performance of a legitimate surveillance system, where a legitimate monitor aims to eavesdrop on a dubious decode-and-forward relaying communication lin…
Frequency Synchronization for Uplink Massive MIMO Systems
Weile Zhang, Feifei Gao, Shi Jin +1
In this paper, we propose a frequency synchronization scheme for multiuser orthogonal frequency division multiplexing (OFDM) uplink with a large-scale uniform linear array (ULA) at…
Uncoordinated Frequency Shifts based Pilot Contamination Attack Detection
Weile Zhang, Hai Lin
Pilot contamination attack is an important kind of active eavesdropping activity conducted by a malicious user during channel training phase. In this paper, motivated by the fact t…
A New View of Multi-User Hybrid Massive MIMO: Non-Orthogonal Angle Division Multiple Access
Hai Lin, Feifei Gao, Shi Jin +1
This paper presents a new view of multi-user (MU) hybrid massive multiple-input and multiple-output (MIMO) systems from array signal processing perspective. We first show that the…
Downlink Performance of Pilot-Reused HetNet with Large-Scale Antenna Arrays
Yongyu Dai, Xiaodai Dong, Hai Lin
Considering a heterogeneous network (HetNet) where both macro base station (BS) and small cell (SC) nodes are equipped with massive antennas, this paper studies the performance for…