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Communications and Networking. 17th EAI International Conference, Chinacom 2022, Virtual Event, November 19-20, 2022, Proceedings

Research Article

Robust Hybrid Beamforming for Multi-user Millimeter Wave Systems with Sub-connected Structure

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BibTeX Plain Text
  • @INPROCEEDINGS{10.1007/978-3-031-34790-0_9,
        author={Zhen Luo and Lang Luo and Xin Zhang and Hongqing Liu},
        title={Robust Hybrid Beamforming for Multi-user Millimeter Wave Systems with Sub-connected Structure},
        proceedings={Communications and Networking. 17th EAI International Conference, Chinacom 2022, Virtual Event, November 19-20, 2022, Proceedings},
        proceedings_a={CHINACOM},
        year={2023},
        month={6},
        keywords={millimeter wave hybrid beamforming multi-user estimation errors sub-connected},
        doi={10.1007/978-3-031-34790-0_9}
    }
    
  • Zhen Luo
    Lang Luo
    Xin Zhang
    Hongqing Liu
    Year: 2023
    Robust Hybrid Beamforming for Multi-user Millimeter Wave Systems with Sub-connected Structure
    CHINACOM
    Springer
    DOI: 10.1007/978-3-031-34790-0_9
Zhen Luo1,*, Lang Luo1, Xin Zhang1, Hongqing Liu1
  • 1: School of Communication and Information Engineering, Chongqing University of Posts and Telecommunications
*Contact email: luozhen@cqupt.edu.cn

Abstract

In this paper, we investigate a millimeter wave multi-user system to further improve the spectral efficiency. Millimeter wave channels with correlated estimation errors and sub-connected structures are considered to develop a two-stage hybrid beamforming scheme. In the first stage, the analog parts of beamformers are designed to maximize RF-to-RF channel gains. In the second stage, the digital parts of the beamformers are optimized by utilizing the equivalence between the maximization of mutual information and the minimization of weighted minimum mean square error. The numerical results show that the proposed scheme has superior performance over other existing designs.

Keywords
millimeter wave hybrid beamforming multi-user estimation errors sub-connected
Published
2023-06-10
Appears in
SpringerLink
http://dx.doi.org/10.1007/978-3-031-34790-0_9
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