94 citations · 103 across the 17 of their papers we have counts for
15 papers
Low-Complexity Multicast Beamforming for Millimeter Wave Communications
Zhaohui Li, Chenhao Qi, Geoffrey Ye Li
To develop a low-complexity multicast beamforming method for millimeter wave communications, we first propose a channel gain estimation method in this article. We use the beam swee…
Multibeam Satellite Communications with Energy Efficiency Optimization
Chenhao Qi, Yang Yang, Rui Ding +2
Energy efficiency (EE) is an important aspect of satellite communications. Different with the existing algorithms that typically use the first-order Taylor lower bound approximatio…
Channel Estimation for Wideband MmWave MIMO OFDM System Exploiting Block Sparsity
Yujie Wang, Chenhao Qi, Ping Li +2
In this letter, we investigate time-domain channel estimation for wideband millimeter wave (mmWave) MIMO OFDM system. By transmitting frequency-domain pilot symbols as well as diff…
Hybrid Beamforming for Millimeter Wave MIMO Integrated Sensing and Communications
Chenhao Qi, Wei Ci, Jinming Zhang +1
In this letter, we consider hybrid beamforming for millimeter wave (mmWave) MIMO integrated sensing and communications (ISAC). We design the transmit beam of a dual-functional rada…
Energy Efficient Multicast Precoding for Multiuser Multibeam Satellite Communications
Chenhao Qi, Huajian Chen, Yansha Deng +1
Aiming at maximizing the energy efficiency (EE) of multicast multibeam satellite communications, we consider the precoding design under the total power and quality of service (QoS)…
Sparse Channel Estimation and Hybrid Precoding Using Deep Learning for Millimeter Wave Massive MIMO
Wenyan Ma, Chenhao Qi, Zaichen Zhang +1
Channel estimation and hybrid precoding are considered for multi-user millimeter wave massive multi-input multi-output system. A deep learning compressed sensing (DLCS) channel est…