Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO System
Reconfigurable intelligent surfaces (RISs) have emerged as promising contenders for enabling sixth-generation (6G) physical wireless platforms. RISs fine-tune wireless networks to optimize the spectrum and energy use. This article explores the design challenge of a joint beamforming strategy for in...
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| Format: | Article |
| Language: | English |
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Wasit University
2022-07-01
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| Series: | Wasit Journal of Engineering Sciences |
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| Online Access: | https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/286 |
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| author | Intisar AL-Shaeli lsmail Hburi |
| author_facet | Intisar AL-Shaeli lsmail Hburi |
| author_sort | Intisar AL-Shaeli |
| collection | DOAJ |
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Reconfigurable intelligent surfaces (RISs) have emerged as promising contenders for enabling sixth-generation (6G) physical wireless platforms. RISs fine-tune wireless networks to optimize the spectrum and energy use. This article explores the design challenge of a joint beamforming strategy for increasing throughput at the AP and RIS sides. To address this challenging problem, we created an iterative algorithm, that makes use of the Duality Theory and the Alternating Optimization technique called the DAO algorithm. Due to the given problem's non-convexity and difficulty with variable coupling, the proposed Algorithm divides the optimization problem of the coupled variables into four distinct optimization sub-problems by introducing new supporting variables. The alternate optimization strategy handles the issue sequentially by iteratively updating these new variables, the active beamformer, and the non-active beamformer. Finally, the simulation results indicate that we achieve about a 30% spectrum boost over the standard network without RIS for a certain system and circumstances scenario.
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| format | Article |
| id | doaj-art-95490bcb32d34f1797d14278bae6659e |
| institution | Kabale University |
| issn | 2305-6932 2663-1970 |
| language | English |
| publishDate | 2022-07-01 |
| publisher | Wasit University |
| record_format | Article |
| series | Wasit Journal of Engineering Sciences |
| spelling | doaj-art-95490bcb32d34f1797d14278bae6659e2025-08-20T03:45:39ZengWasit UniversityWasit Journal of Engineering Sciences2305-69322663-19702022-07-0110210.31185/ejuow.Vol10.Iss2.286Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO SystemIntisar AL-Shaeli0lsmail Hburi1Department of Electrical Engineering, Wasit University, Wasit, IraqDepartment of Electrical Engineering, Wasit University, Wasit, Iraq Reconfigurable intelligent surfaces (RISs) have emerged as promising contenders for enabling sixth-generation (6G) physical wireless platforms. RISs fine-tune wireless networks to optimize the spectrum and energy use. This article explores the design challenge of a joint beamforming strategy for increasing throughput at the AP and RIS sides. To address this challenging problem, we created an iterative algorithm, that makes use of the Duality Theory and the Alternating Optimization technique called the DAO algorithm. Due to the given problem's non-convexity and difficulty with variable coupling, the proposed Algorithm divides the optimization problem of the coupled variables into four distinct optimization sub-problems by introducing new supporting variables. The alternate optimization strategy handles the issue sequentially by iteratively updating these new variables, the active beamformer, and the non-active beamformer. Finally, the simulation results indicate that we achieve about a 30% spectrum boost over the standard network without RIS for a certain system and circumstances scenario. https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/2866G networks, active/ non-active beamforming, Reconfigurable intelligent surfaces (RISs), non-convex optimization problems. |
| spellingShingle | Intisar AL-Shaeli lsmail Hburi Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO System Wasit Journal of Engineering Sciences 6G networks, active/ non-active beamforming, Reconfigurable intelligent surfaces (RISs), non-convex optimization problems. |
| title | Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO System |
| title_full | Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO System |
| title_fullStr | Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO System |
| title_full_unstemmed | Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO System |
| title_short | Spectral Efficiency Enhancement for Reconfigurable Intelligent Surface Assisted MIMO System |
| title_sort | spectral efficiency enhancement for reconfigurable intelligent surface assisted mimo system |
| topic | 6G networks, active/ non-active beamforming, Reconfigurable intelligent surfaces (RISs), non-convex optimization problems. |
| url | https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/286 |
| work_keys_str_mv | AT intisaralshaeli spectralefficiencyenhancementforreconfigurableintelligentsurfaceassistedmimosystem AT lsmailhburi spectralefficiencyenhancementforreconfigurableintelligentsurfaceassistedmimosystem |