Beamforming Design for Cooperative Intelligent Reflecting Surface-Assisted mmWave Communication
In order to investigate the effect of cooperative Intelligent Reflecting Surface (IRS) in improving spectral efficiency, this paper explores the joint design of active and passive beamforming based on a double IRS-assisted model. First, considering the maximum power constraint of the active vector a...
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MDPI AG
2022-08-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/16/6214 |
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| author | Yuyan Qian Honggui Deng Aimin Guo Haoqi Xiao Chengzuo Peng Yinhao Zhang |
| author_facet | Yuyan Qian Honggui Deng Aimin Guo Haoqi Xiao Chengzuo Peng Yinhao Zhang |
| author_sort | Yuyan Qian |
| collection | DOAJ |
| description | In order to investigate the effect of cooperative Intelligent Reflecting Surface (IRS) in improving spectral efficiency, this paper explores the joint design of active and passive beamforming based on a double IRS-assisted model. First, considering the maximum power constraint of the active vector and the unit modulus constraint of the cooperative passive vector, we establish the non-linear and non-convex optimization problem of multi-user maximization weighted sum rate (WSR). Then, we propose an alternating optimization (AO) algorithm to design the active vector and the cooperative passive vector based on fractional programming (FP) and successive convex approximations (SCA). In addition, we conduct a study on the optimization of the passive reflection vector under discrete phase shift. The simulation results show that the proposed beamforming scheme of double IRS-assisted model performs better than the conventional single IRS-assisted model. |
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| id | doaj.art-23cbef850a61459f8e5a3bc55d5c3e6b |
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| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T03:51:12Z |
| publishDate | 2022-08-01 |
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| spelling | doaj.art-23cbef850a61459f8e5a3bc55d5c3e6b2023-12-03T14:27:16ZengMDPI AGSensors1424-82202022-08-012216621410.3390/s22166214Beamforming Design for Cooperative Intelligent Reflecting Surface-Assisted mmWave CommunicationYuyan Qian0Honggui Deng1Aimin Guo2Haoqi Xiao3Chengzuo Peng4Yinhao Zhang5School of Physics and Electronics, Central South University, Lushan South Road, Changsha 410083, ChinaSchool of Physics and Electronics, Central South University, Lushan South Road, Changsha 410083, ChinaSchool of Physics and Electronics, Central South University, Lushan South Road, Changsha 410083, ChinaSchool of Physics and Electronics, Central South University, Lushan South Road, Changsha 410083, ChinaSchool of Physics and Electronics, Central South University, Lushan South Road, Changsha 410083, ChinaSchool of Physics and Electronics, Central South University, Lushan South Road, Changsha 410083, ChinaIn order to investigate the effect of cooperative Intelligent Reflecting Surface (IRS) in improving spectral efficiency, this paper explores the joint design of active and passive beamforming based on a double IRS-assisted model. First, considering the maximum power constraint of the active vector and the unit modulus constraint of the cooperative passive vector, we establish the non-linear and non-convex optimization problem of multi-user maximization weighted sum rate (WSR). Then, we propose an alternating optimization (AO) algorithm to design the active vector and the cooperative passive vector based on fractional programming (FP) and successive convex approximations (SCA). In addition, we conduct a study on the optimization of the passive reflection vector under discrete phase shift. The simulation results show that the proposed beamforming scheme of double IRS-assisted model performs better than the conventional single IRS-assisted model.https://www.mdpi.com/1424-8220/22/16/6214Intelligent Reflecting Surfacecooperative passive beamformingIRS deploymentmillimeter-wave communicationfractional programming |
| spellingShingle | Yuyan Qian Honggui Deng Aimin Guo Haoqi Xiao Chengzuo Peng Yinhao Zhang Beamforming Design for Cooperative Intelligent Reflecting Surface-Assisted mmWave Communication Sensors Intelligent Reflecting Surface cooperative passive beamforming IRS deployment millimeter-wave communication fractional programming |
| title | Beamforming Design for Cooperative Intelligent Reflecting Surface-Assisted mmWave Communication |
| title_full | Beamforming Design for Cooperative Intelligent Reflecting Surface-Assisted mmWave Communication |
| title_fullStr | Beamforming Design for Cooperative Intelligent Reflecting Surface-Assisted mmWave Communication |
| title_full_unstemmed | Beamforming Design for Cooperative Intelligent Reflecting Surface-Assisted mmWave Communication |
| title_short | Beamforming Design for Cooperative Intelligent Reflecting Surface-Assisted mmWave Communication |
| title_sort | beamforming design for cooperative intelligent reflecting surface assisted mmwave communication |
| topic | Intelligent Reflecting Surface cooperative passive beamforming IRS deployment millimeter-wave communication fractional programming |
| url | https://www.mdpi.com/1424-8220/22/16/6214 |
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