Secure Antenna Selection and Beamforming in MIMO Systems
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2023
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| _version_ | 1866909374751965184 |
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| author | Cheng, Zhenqiao Li, Nanxi Long, Ruizhe Zhu, Jianchi Ouyang, Chongjun Chen, Peng |
| author_facet | Cheng, Zhenqiao Li, Nanxi Long, Ruizhe Zhu, Jianchi Ouyang, Chongjun Chen, Peng |
| contents | This work proposes a novel joint design for multiuser multiple-input multiple-output wiretap channels. The base station exploits a switching network to connect a subset of its antennas to the available radio frequency chains. The switching network and transmit beamformers are jointly designed to maximize the weighted secrecy sum-rate for this setting. The principal design problem reduces to an NP-hard mixed-integer non-linear programming. We invoke the fractional programming technique and the penalty dual decomposition method to develop a tractable iterative algorithm that effectively approximates the optimal design. Our numerical investigations validate the effectiveness of the proposed algorithm and its superior performance compared with the benchmark. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2302_11127 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Secure Antenna Selection and Beamforming in MIMO Systems Cheng, Zhenqiao Li, Nanxi Long, Ruizhe Zhu, Jianchi Ouyang, Chongjun Chen, Peng Signal Processing This work proposes a novel joint design for multiuser multiple-input multiple-output wiretap channels. The base station exploits a switching network to connect a subset of its antennas to the available radio frequency chains. The switching network and transmit beamformers are jointly designed to maximize the weighted secrecy sum-rate for this setting. The principal design problem reduces to an NP-hard mixed-integer non-linear programming. We invoke the fractional programming technique and the penalty dual decomposition method to develop a tractable iterative algorithm that effectively approximates the optimal design. Our numerical investigations validate the effectiveness of the proposed algorithm and its superior performance compared with the benchmark. |
| title | Secure Antenna Selection and Beamforming in MIMO Systems |
| topic | Signal Processing |
| url | https://arxiv.org/abs/2302.11127 |