Multi-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications
This paper proposes a hybrid beamforming design algorithm for a multi-user physical layer security modulation technique. The hybrid beamforming scheme is used in the base station to generate multi-beams according to the direction angle of the target users. The base station first uses a secure analog...
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MDPI AG
2021
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oai:doaj.org-article:2f947f87c8ea448c98a7b1c60d41ba752021-11-11T15:38:53ZMulti-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications10.3390/electronics102126352079-9292https://doaj.org/article/2f947f87c8ea448c98a7b1c60d41ba752021-10-01T00:00:00Zhttps://www.mdpi.com/2079-9292/10/21/2635https://doaj.org/toc/2079-9292This paper proposes a hybrid beamforming design algorithm for a multi-user physical layer security modulation technique. The hybrid beamforming scheme is used in the base station to generate multi-beams according to the direction angle of the target users. The base station first uses a secure analog beamforming scheme to generate analog beams in multiple desired directions, then uses minimum mean square error (MMSE) to design the digital beamforming matrix to eliminate inter-beam interference. Due to randomly selecting a subset of antennas to transmit signals at the symbol rate, the base station transmits the defined constellation to the target users and projects the randomized constellation in the other angles. In addition, the superposition of signals is affected by a randomly selected antennas subset, resulting in higher sidelobe energy. However, due to the integer optimization target, the optimization problem of antenna subsets is non-trivial. Therefore, this paper proposes a cross-entropy iteration method to choose the optimal antenna combination to reduce the sidelobe energy. The simulation shows that the proposed method in this paper has about 10 dB lower sidelobe energy than the random selection method. Besides, the eavesdropper’s symbol error rate of QPSK is always 0.75, while the multi-target users meet the quality of service requirements.Jianguo LiNeng YeSiqi MaXiangyuan BuJianping AnMDPI AGarticlesecure communicationhybrid beamformingphysical layer security modulation techniqueElectronicsTK7800-8360ENElectronics, Vol 10, Iss 2635, p 2635 (2021) |
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DOAJ |
| collection |
DOAJ |
| language |
EN |
| topic |
secure communication hybrid beamforming physical layer security modulation technique Electronics TK7800-8360 |
| spellingShingle |
secure communication hybrid beamforming physical layer security modulation technique Electronics TK7800-8360 Jianguo Li Neng Ye Siqi Ma Xiangyuan Bu Jianping An Multi-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications |
| description |
This paper proposes a hybrid beamforming design algorithm for a multi-user physical layer security modulation technique. The hybrid beamforming scheme is used in the base station to generate multi-beams according to the direction angle of the target users. The base station first uses a secure analog beamforming scheme to generate analog beams in multiple desired directions, then uses minimum mean square error (MMSE) to design the digital beamforming matrix to eliminate inter-beam interference. Due to randomly selecting a subset of antennas to transmit signals at the symbol rate, the base station transmits the defined constellation to the target users and projects the randomized constellation in the other angles. In addition, the superposition of signals is affected by a randomly selected antennas subset, resulting in higher sidelobe energy. However, due to the integer optimization target, the optimization problem of antenna subsets is non-trivial. Therefore, this paper proposes a cross-entropy iteration method to choose the optimal antenna combination to reduce the sidelobe energy. The simulation shows that the proposed method in this paper has about 10 dB lower sidelobe energy than the random selection method. Besides, the eavesdropper’s symbol error rate of QPSK is always 0.75, while the multi-target users meet the quality of service requirements. |
| format |
article |
| author |
Jianguo Li Neng Ye Siqi Ma Xiangyuan Bu Jianping An |
| author_facet |
Jianguo Li Neng Ye Siqi Ma Xiangyuan Bu Jianping An |
| author_sort |
Jianguo Li |
| title |
Multi-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications |
| title_short |
Multi-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications |
| title_full |
Multi-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications |
| title_fullStr |
Multi-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications |
| title_full_unstemmed |
Multi-User Hybrid Beamforming Design for Physical Layer Secured mmWave LOS Communications |
| title_sort |
multi-user hybrid beamforming design for physical layer secured mmwave los communications |
| publisher |
MDPI AG |
| publishDate |
2021 |
| url |
https://doaj.org/article/2f947f87c8ea448c98a7b1c60d41ba75 |
| work_keys_str_mv |
AT jianguoli multiuserhybridbeamformingdesignforphysicallayersecuredmmwaveloscommunications AT nengye multiuserhybridbeamformingdesignforphysicallayersecuredmmwaveloscommunications AT siqima multiuserhybridbeamformingdesignforphysicallayersecuredmmwaveloscommunications AT xiangyuanbu multiuserhybridbeamformingdesignforphysicallayersecuredmmwaveloscommunications AT jianpingan multiuserhybridbeamformingdesignforphysicallayersecuredmmwaveloscommunications |
| _version_ |
1718434657093025792 |