TY - GEN
T1 - Hybrid Beamforming Design for Multi-User Multi-Stream Communications with Terahertz Massive MIMO
AU - Wan, Ziwei
AU - Qin, Tong
AU - Gao, Zhen
AU - Hu, Chun
AU - Lv, Yuezu
AU - Li, Tuan
AU - Zhu, Chunli
AU - Mao, Jiening
N1 - Publisher Copyright:
© 2023, ICST Institute for Computer Sciences, Social Informatics and Telecommunications Engineering.
PY - 2023
Y1 - 2023
N2 - The hybrid beamforming (HBF) design for terahertz (THz) massive multiple-input multiple-output (mMIMO) communications is an essential but challenging problem in future wireless communications. In this paper, we propose an efficient HBF design framework for downlink multi-user multi-stream transmission in broadband THz mMIMO systems. First, the analytic solutions for digital precoder are derived to minimize the sum-mean-square error between the transmitted and received symbols. Then, we propose a tractable criterion for the codebook-based fully-connected analog precoder design, and further extend it to the case where the dynamic partially-connected structure is considered. A low-complexity energy-based greedy antenna grouping scheme is proposed for the dynamic hybrid structure. Simulation results demonstrate the effectiveness and the superiority of the proposed scheme in terms of sum rate and bit error rate over its counterparts.
AB - The hybrid beamforming (HBF) design for terahertz (THz) massive multiple-input multiple-output (mMIMO) communications is an essential but challenging problem in future wireless communications. In this paper, we propose an efficient HBF design framework for downlink multi-user multi-stream transmission in broadband THz mMIMO systems. First, the analytic solutions for digital precoder are derived to minimize the sum-mean-square error between the transmitted and received symbols. Then, we propose a tractable criterion for the codebook-based fully-connected analog precoder design, and further extend it to the case where the dynamic partially-connected structure is considered. A low-complexity energy-based greedy antenna grouping scheme is proposed for the dynamic hybrid structure. Simulation results demonstrate the effectiveness and the superiority of the proposed scheme in terms of sum rate and bit error rate over its counterparts.
KW - Hybrid beamforming (HBF)
KW - Massive MIMO
KW - Multi-user MIMO
KW - Terahertz (THz)
UR - http://www.scopus.com/inward/record.url?scp=85163953328&partnerID=8YFLogxK
U2 - 10.1007/978-3-031-34851-8_5
DO - 10.1007/978-3-031-34851-8_5
M3 - Conference contribution
AN - SCOPUS:85163953328
SN - 9783031348501
T3 - Lecture Notes of the Institute for Computer Sciences, Social-Informatics and Telecommunications Engineering, LNICST
SP - 59
EP - 73
BT - Wireless and Satellite Systems - 13th EAI International Conference, WiSATS 2022, Proceedings
A2 - Zhao, Jun
PB - Springer Science and Business Media Deutschland GmbH
T2 - 13th International Conference on Wireless and Satellite Services, WiSATS 2022
Y2 - 12 March 2023 through 13 March 2023
ER -