no code implementations • 25 Nov 2023 • Kangjian Chen, Chenhao Qi, Octavia A. Dobre, Geoffrey Ye Li
Based on the SBTTS and PAOE schemes, we further compute the angle-of-arrival and angle-of-departure for the channels between the RIS and the UTs by exploiting the geometry relationship to accomplish the beam alignment of the ISAC system.
no code implementations • 25 Nov 2023 • Chenhao Qi, Jing Wang, Leyi Lyu, Lei Tan, Jinming Zhang, Geoffrey Ye Li
The long-distance wireless signal propagation in NTNs leads to severe path loss and large latency, where the accurate acquisition of channel state information (CSI) is another challenge, especially for fast-moving non-terrestrial base stations (NTBSs).
no code implementations • 12 Mar 2022 • 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.
no code implementations • 12 Mar 2022 • Chenhao Qi, Wei Ci, Jinming Zhang, Xiaohu You
In this letter, we consider hybrid beamforming for millimeter wave (mmWave) MIMO integrated sensing and communications (ISAC).
no code implementations • 16 Jun 2020 • Chenhao Qi, Peihao Dong, Wenyan Ma, Hua Zhang, Zaichen Zhang, Geoffrey Ye Li
The accuracy of channel state information (CSI) acquisition directly affects the performance of millimeter wave (mmWave) communications.