Beam-space MIMO-NOMA Technique for mm-Wave Communication Systems
The multi-input-multi-output-antenna Scheme is regarded as the most promising method for next-generation wireless communication networks that employ millimeter-wave (mm-wave) frequencies and enable them to have a large information throughput. As a result of the large number of radio frequency c...
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Wasit University
2024-04-01
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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/497 |
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| author | Haider Salih Al Ammar Ismail Hburi |
| author_facet | Haider Salih Al Ammar Ismail Hburi |
| author_sort | Haider Salih Al Ammar |
| collection | DOAJ |
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The multi-input-multi-output-antenna Scheme is regarded as the most promising method for next-generation wireless communication networks that employ millimeter-wave (mm-wave) frequencies and enable them to have a large information throughput. As a result of the large number of radio frequency chains, MIMO mm-wave technology has difficulty with energy consumption. The beam space MIMO (or BS-MIMO for short) reduces the total number of radio frequency components or chains (RF-Chains) without degrading performance significantly. Yeti, VS-MIMO restricts the number of clients that can be supported at the same time-frequency domain (cannot exceed the overall RF-chains number ). In order to cope with such problems, it has been intended to include the NOMA technique (which stands for Non-Orthogonal-Multiple-Access) with the concept of beam space to create the extra model of Non-Orthogonal beam space-MIMO (NOMA-BS-MIMO). With such a scheme the base station can support the service for more than one client (supposed to have correlated channels) through the same beam employing the same radio frequency chain, causing the total clients number greater than the number of employed radio chains in the system.
In this research, the Spectral Efficiency of a proposed Non-Orthogonal beam space-MIMO has been considered. More specifically, the research proposes and develops a simple iterative algorithm with near-perfect performance in terms of system Spectral Efficiency. To achieve rate balancing across users, the proposed method, SLNR-IV, employs the signal-to-leakage-plus-noise ratio (SLNR) and the intermediate value method. Considering algorithm validity and a particular parameter setting scenario, the proposed strategy improves bandwidth efficiency by around 15% in comparison to the conventional approach based on OFDM and Zero-forcing digital precoder.
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| format | Article |
| id | doaj-art-3154a51074bd4c31a7e76f03d6deedaa |
| institution | DOAJ |
| issn | 2305-6932 2663-1970 |
| language | English |
| publishDate | 2024-04-01 |
| publisher | Wasit University |
| record_format | Article |
| series | Wasit Journal of Engineering Sciences |
| spelling | doaj-art-3154a51074bd4c31a7e76f03d6deedaa2025-08-20T02:40:18ZengWasit UniversityWasit Journal of Engineering Sciences2305-69322663-19702024-04-0112210.31185/ejuow.Vol12.Iss2.497Beam-space MIMO-NOMA Technique for mm-Wave Communication SystemsHaider Salih Al Ammar 0Ismail Hburi Wasit University The multi-input-multi-output-antenna Scheme is regarded as the most promising method for next-generation wireless communication networks that employ millimeter-wave (mm-wave) frequencies and enable them to have a large information throughput. As a result of the large number of radio frequency chains, MIMO mm-wave technology has difficulty with energy consumption. The beam space MIMO (or BS-MIMO for short) reduces the total number of radio frequency components or chains (RF-Chains) without degrading performance significantly. Yeti, VS-MIMO restricts the number of clients that can be supported at the same time-frequency domain (cannot exceed the overall RF-chains number ). In order to cope with such problems, it has been intended to include the NOMA technique (which stands for Non-Orthogonal-Multiple-Access) with the concept of beam space to create the extra model of Non-Orthogonal beam space-MIMO (NOMA-BS-MIMO). With such a scheme the base station can support the service for more than one client (supposed to have correlated channels) through the same beam employing the same radio frequency chain, causing the total clients number greater than the number of employed radio chains in the system. In this research, the Spectral Efficiency of a proposed Non-Orthogonal beam space-MIMO has been considered. More specifically, the research proposes and develops a simple iterative algorithm with near-perfect performance in terms of system Spectral Efficiency. To achieve rate balancing across users, the proposed method, SLNR-IV, employs the signal-to-leakage-plus-noise ratio (SLNR) and the intermediate value method. Considering algorithm validity and a particular parameter setting scenario, the proposed strategy improves bandwidth efficiency by around 15% in comparison to the conventional approach based on OFDM and Zero-forcing digital precoder. https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/497 Millimeter-wave; MIMO-NOMA; Beam space-channel; RF-chains; Power Allocation; precoder Matrix; Rate-Balance. |
| spellingShingle | Haider Salih Al Ammar Ismail Hburi Beam-space MIMO-NOMA Technique for mm-Wave Communication Systems Wasit Journal of Engineering Sciences Millimeter-wave; MIMO-NOMA; Beam space-channel; RF-chains; Power Allocation; precoder Matrix; Rate-Balance. |
| title | Beam-space MIMO-NOMA Technique for mm-Wave Communication Systems |
| title_full | Beam-space MIMO-NOMA Technique for mm-Wave Communication Systems |
| title_fullStr | Beam-space MIMO-NOMA Technique for mm-Wave Communication Systems |
| title_full_unstemmed | Beam-space MIMO-NOMA Technique for mm-Wave Communication Systems |
| title_short | Beam-space MIMO-NOMA Technique for mm-Wave Communication Systems |
| title_sort | beam space mimo noma technique for mm wave communication systems |
| topic | Millimeter-wave; MIMO-NOMA; Beam space-channel; RF-chains; Power Allocation; precoder Matrix; Rate-Balance. |
| url | https://ejuow.uowasit.edu.iq/index.php/ejuow/article/view/497 |
| work_keys_str_mv | AT haidersalihalammar beamspacemimonomatechniqueformmwavecommunicationsystems AT ismailhburi beamspacemimonomatechniqueformmwavecommunicationsystems |