4 papers
Joint Detection and Angle Estimation for Multiple Jammers in Beamspace Massive MIMO
Pengguang Du, Cheng Zhang, Changwei Zhang +2
In this paper, we study the joint detection and angle estimation problem for beamspace multiple-input multiple-output (MIMO) systems with multiple random jamming targets. An iterat…
Online Adaptive Real-Time Beamforming Design for Dynamic Environments in Cell-Free Systems
Guanghui Chen, Zheng Wang, Hongxin Lin +2
In this paper, we consider real-time beamforming design for dynamic wireless environments with varying channels and different numbers of access points (APs) and users in cell-free…
Jamming Detection and Channel Estimation for Spatially Correlated Beamspace Massive MIMO
Pengguang Du, Cheng Zhang, Yindi Jing +3
In this paper, we investigate the problem of jamming detection and channel estimation during multi-user uplink beam training under random pilot jamming attacks in beamspace massive…
Joint Port Selection Based Channel Acquisition for FDD Cell-Free Massive MIMO
Cheng Zhang, Pengguang Du, Minjie Ding +2
In frequency division duplexing (FDD) cell-free massive MIMO, the acquisition of the channel state information (CSI) is very challenging because of the large overhead required for…