A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference Reduction
Medium-scale or large-scale receive antenna array with digital beamforming can be employed at receiver to make a significant interference reduction but leads to expensive cost and high complexity of the RF-chain circuit. To deal with this issue, classic analog-and-digital beamforming (ADB) structure...
| Main Authors: | , , , , , , , |
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| Format: | Article |
| Language: | English |
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IEEE
2019-01-01
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| Series: | IEEE Access |
| Subjects: | |
| Online Access: | https://ieeexplore.ieee.org/document/8641274/ |
| _version_ | 1819179260979445760 |
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| author | Linlin Sun Yaolu Qin Zhihong Zhuang Riqing Chen Yijin Zhang Jinhui Lu Feng Shu Jiangzhou Wang |
| author_facet | Linlin Sun Yaolu Qin Zhihong Zhuang Riqing Chen Yijin Zhang Jinhui Lu Feng Shu Jiangzhou Wang |
| author_sort | Linlin Sun |
| collection | DOAJ |
| description | Medium-scale or large-scale receive antenna array with digital beamforming can be employed at receiver to make a significant interference reduction but leads to expensive cost and high complexity of the RF-chain circuit. To deal with this issue, classic analog-and-digital beamforming (ADB) structure was proposed in the literature for greatly reducing the number of RF-chains. Based on the ADB structure, in this paper, we propose a robust hybrid ADB scheme to resist directions of arrival (DOAs) estimation errors. The key idea of our scheme is to employ null space projection (NSP) in the analog beamforming domain and diagonal loading (DL) method in digital beamforming domain. The simulation results show that the proposed scheme performs more robustly, and moreover, it has a significant improvement on the receive signal-to-interference-plus-noise ratio compared to NSP ADB scheme and DL method. |
| first_indexed | 2024-12-22T21:55:38Z |
| format | Article |
| id | doaj.art-09d3f5360e984cdeb7f3e7d71e5c5359 |
| institution | Directory Open Access Journal |
| issn | 2169-3536 |
| language | English |
| last_indexed | 2024-12-22T21:55:38Z |
| publishDate | 2019-01-01 |
| publisher | IEEE |
| record_format | Article |
| series | IEEE Access |
| spelling | doaj.art-09d3f5360e984cdeb7f3e7d71e5c53592022-12-21T18:11:15ZengIEEEIEEE Access2169-35362019-01-017222272223410.1109/ACCESS.2019.28991548641274A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference ReductionLinlin Sun0Yaolu Qin1Zhihong Zhuang2Riqing Chen3Yijin Zhang4https://orcid.org/0000-0002-1491-209XJinhui Lu5Feng Shu6https://orcid.org/0000-0003-0073-1965Jiangzhou Wang7School of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaCollege of Computer and Information Sciences, Fujian Agriculture and Forestry University, Fuzhou, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Electronic and Optical Engineering, Nanjing University of Science and Technology, Nanjing, ChinaSchool of Engineering and Digital Arts, University of Kent, Canterbury, U.K.Medium-scale or large-scale receive antenna array with digital beamforming can be employed at receiver to make a significant interference reduction but leads to expensive cost and high complexity of the RF-chain circuit. To deal with this issue, classic analog-and-digital beamforming (ADB) structure was proposed in the literature for greatly reducing the number of RF-chains. Based on the ADB structure, in this paper, we propose a robust hybrid ADB scheme to resist directions of arrival (DOAs) estimation errors. The key idea of our scheme is to employ null space projection (NSP) in the analog beamforming domain and diagonal loading (DL) method in digital beamforming domain. The simulation results show that the proposed scheme performs more robustly, and moreover, it has a significant improvement on the receive signal-to-interference-plus-noise ratio compared to NSP ADB scheme and DL method.https://ieeexplore.ieee.org/document/8641274/robustsecurehybrid structureinterference reductionanalog-and-digital beamforming |
| spellingShingle | Linlin Sun Yaolu Qin Zhihong Zhuang Riqing Chen Yijin Zhang Jinhui Lu Feng Shu Jiangzhou Wang A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference Reduction IEEE Access robust secure hybrid structure interference reduction analog-and-digital beamforming |
| title | A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference Reduction |
| title_full | A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference Reduction |
| title_fullStr | A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference Reduction |
| title_full_unstemmed | A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference Reduction |
| title_short | A Robust Secure Hybrid Analog and Digital Receive Beamforming Scheme for Efficient Interference Reduction |
| title_sort | robust secure hybrid analog and digital receive beamforming scheme for efficient interference reduction |
| topic | robust secure hybrid structure interference reduction analog-and-digital beamforming |
| url | https://ieeexplore.ieee.org/document/8641274/ |
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