528 citations · 3.1k across the 49 of their papers we have counts for
9 papers · 1 filter
Compressive Sensing Based Joint Activity and Data Detection for Grant-Free Massive IoT Access
Yikun Mei, Zhen Gao, Yongpeng Wu +4
Massive machine-type communications (mMTC) are poised to provide ubiquitous connectivity for billions of Internet-of-Things (IoT) devices. However, the required low-latency massive…
Terahertz Massive MIMO with Holographic Reconfigurable Intelligent Surfaces
Ziwei Wan, Zhen Gao, Feifei Gao +2
We propose a holographic version of a reconfigurable intelligent surface (RIS) and investigate its application to terahertz (THz) massive multiple-input multiple-output systems. Ca…
Massive Access in Cell-Free Massive MIMO-Based Internet of Things: Cloud Computing and Edge Computing Paradigms
Malong Ke, Zhen Gao, Yongpeng Wu +2
This paper studies massive access in cell-free massive multi-input multi-output (MIMO) based Internet of Things and solves the challenging active user detection (AUD) and channel e…
Deep Denoising Neural Network Assisted Compressive Channel Estimation for mmWave Intelligent Reflecting Surfaces
Shicong Liu, Zhen Gao, Jun Zhang +2
Integrating large intelligent reflecting surfaces (IRS) into millimeter-wave (mmWave) massive multi-input-multi-ouput (MIMO) has been a promising approach for improved coverage and…
Data-Driven Deep Learning to Design Pilot and Channel Estimator For Massive MIMO
Xisuo Ma, Zhen Gao
In this paper, we propose a data-driven deep learning (DL) approach to jointly design the pilot signals and channel estimator for wideband massive multiple-input multiple-output (M…
Compressive Sensing Based Massive Access for IoT Relying on Media Modulation Aided Machine Type Communications
Li Qiao, Jun Zhang, Zhen Gao +2
A fundamental challenge of the large-scale Internet-of-Things lies in how to support massive machine-type communications (mMTC). This letter proposes a media modulation based mMTC…
Compressive Massive Access for Internet of Things: Cloud Computing or Fog Computing?
Malong Ke, Zhen Gao, Yongpeng Wu
This paper considers the support of grant-free massive access and solves the challenge of active user detection and channel estimation in the case of a massive number of users. By…
Broadband Channel Estimation for Intelligent Reflecting Surface Aided mmWave Massive MIMO Systems
Ziwei Wan, Zhen Gao, Mohamed-Slim Alouini
This paper investigates the broadband channel estimation (CE) for intelligent reflecting surface (IRS)-aided millimeter-wave (mmWave) massive MIMO systems. The CE for such systems…
GMD-Based Hybrid Beamforming for Large Reconfigurable Intelligent Surface Assisted Millimeter-Wave Massive MIMO
Keke Ying, Zhen Gao, Shanxiang Lyu +3
Reconfigurable intelligent surface (RIS) is considered to be an energy-efficient approach to reshape the wireless environment for improved throughput. Its passive feature greatly r…