University of Oulu

C. Chen et al., "Joint Design of Phase Shift and Transceiver Beamforming for Intelligent Reflecting Surface Assisted Millimeter-Wave High-Speed Railway Communications," in IEEE Transactions on Vehicular Technology, vol. 72, no. 5, pp. 6253-6267, May 2023, doi: 10.1109/TVT.2022.3233066

Joint design of phase shift and transceiver beamforming for intelligent reflecting surface assisted millimeter-wave high-speed railway communications

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Author: Chen, Chen1,2; Niu, Yong3; Ai, Bo3,2;
Organizations: 1State Key Laboratory of Rail Traffic Control and Safety and the Frontiers Science Center for Smart High-speed Railway System, Beijing Jiaotong University, Beijing, China
2Beijing Engineering Research Center of High-speed Railway Broadband Mobile Communications, Beijing, China
3State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, Beijing, China
4Department of Electrical and Computer Engineering, University of Houston, Houston, TX, USA
5Department of Computer Science and Engineering, Kyung Hee University, Seoul, South Korea
6School of Information Engineering, Zhengzhou University, Zhengzhou, China
7Department of Computer Science, Norwegian University of Science and Technology, Gjøvik, Norway
8Center of Ubiquitous Computing, University of Oulu, Oulu, Finland
Format: article
Version: accepted version
Access: open
Online Access: PDF Full Text (PDF, 0.3 MB)
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Language: English
Published: Institute of Electrical and Electronics Engineers, 2022
Publish Date: 2023-06-15


With the emerging demands of new communication services, the contradiction between capacity demand and spectrum shortage of railway communication systems becomes more severe. How to provide broadband communication services has become the key goal of future smart high-speed railway (HSR) systems. Millimeter wave (mm-wave) frequency band has abundant spectrum resources and can provide communication services with large bandwidth. However, due to the high-speed of the train as well as the complexity and dynamics of environments, the communication link may be blocked randomly for a short time and will also lead to frequent handovers. In this paper, we adopt the promising intelligent reflecting surface (IRS) technology for a mm-wave HSR communication system. In order to improve system capacity, IRS is deployed to improve reflection transmission links, and optimization algorithms are designed for transceiver beamforming and IRS phase shift. In addition, given the specificity of the HSR scenario, we also formulate the average system ergodic capacity maximization problem and obtain upper bound on the average system ergodic capacity with statistical channel state information (CSI). Through extensive simulations, we verify that the proposed scheme performs significantly better than the other two baseline schemes in terms of average system throughput and average system ergodic capacity.

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Series: IEEE transactions on vehicular technology
ISSN: 0018-9545
ISSN-E: 1939-9359
ISSN-L: 0018-9545
Volume: 72
Issue: 5
Pages: 6253 - 6267
DOI: 10.1109/TVT.2022.3233066
Type of Publication: A1 Journal article – refereed
Field of Science: 213 Electronic, automation and communications engineering, electronics
Funding: This work was supported in part by the Funadamental Research Funds for the Central Universities, China, under Grants 2022JBQY004 and 2022JBXT001, in part by the National Key Research and Development Program, under Grant 2021YFB2900301, in part by National Key R&D Program of China, under Grant 2020YFB1806903, and in part by the National Natural Science Foundation of China, under Grants 62231009, 62221001, 61801016, 61725101, 61961130391, and U1834210.
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