640 citations · 4.4k across the 114 of their papers we have counts for
4 papers · 2 filters
Efficient Downlink Channel Reconstruction for FDD Multi-Antenna Systems
Yu Han, Tien-Hao Hsu, Chao-Kai Wen +2
In this paper, we propose an efficient downlink channel reconstruction scheme for a frequency-division-duplex multi-antenna system by utilizing uplink channel state information com…
A Data-Aided Channel Estimation Scheme for Decoupled Systems in Heterogeneous Networks
Wen Liu, Kai-Kit Wong, Shi Jin +1
Uplink/downlink (UL/DL) decoupling promises more flexible cell association and higher throughput in heterogeneous networks (HetNets), however, it hampers the acquisition of DL chan…
DFT-Based Hybrid Beamforming Multiuser Systems: Rate Analysis and Beam Selection
Yu Han, Shi Jin, Jun Zhang +2
This paper considers the discrete Fourier transform (DFT) based hybrid beamforming multiuser system and studies the use of analog beam selection schemes. We first analyze the uplin…
A Survey of Physical Layer Security Techniques for 5G Wireless Networks and Challenges Ahead
Yongpeng Wu, Ashish Khisti, Chengshan Xiao +3
Physical layer security which safeguards data confidentiality based on the information-theoretic approaches has received significant research interest recently. The key idea behind…