516 citations · 1.7k across the 101 of their papers we have counts for
6 papers · 2 filters
Joint Active and Passive Beamforming for Intelligent Reflecting Surface-Assisted Massive MIMO Systems
Xingjian Li, Jun Fang, Feifei Gao +1
In this paper, we study the problem of joint active and passive beamforming for intelligent reflecting surface (IRS)-assisted massive MIMO systems, where multiple IRSs equipped wit…
Deep Transfer Learning Based Downlink Channel Prediction for FDD Massive MIMO Systems
Yuwen Yang, Feifei Gao, Zhimeng Zhong +2
Artificial intelligence (AI) based downlink channel state information (CSI) prediction for frequency division duplexing (FDD) massive multiple-input multiple-output (MIMO) systems…
Time Varying Channel Tracking for Multi-UAV Wideband Communications with Beam Squint
Jianwei Zhao, Qi Dong, Yanjie Zhao +2
Unmanned aerial vehicle (UAV) has become an appealing solution for a wide range of commercial and civilian applications because of its high mobility and flexible deployment. Due to…
Model-aided Deep Neural Network for Source Number Detection
Yuwen Yang, Feifei Gao, Cheng Qian +1
Source number detection is a critical problem in array signal processing. Conventional model-driven methods e.g., Akaikes information criterion (AIC) and minimum description length…
Time-Varying Downlink Channel Tracking for Quantized Massive MIMO Networks
Jianpeng Ma, Shun Zhang, Hongyan Li +2
This paper proposes a Bayesian downlink channel estimation algorithm for time-varying massive MIMO networks. In particular, the quantization effects at the receiver are considered.…
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…