Cooperative SWIPT MIMO-NOMA for Reliable THz 6G Communications
In this paper, cooperative simultaneous wireless information and power transfer (SWIPT) terahertz (THz) multiple-input multiple-output (MIMO) nonorthogonal multiple access (NOMA) are considered. The aim is to improve wireless connectivity, resource management, scalability, and user fairness, as well...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-04-01
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| Series: | Network |
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| Online Access: | https://www.mdpi.com/2673-8732/2/2/17 |
| _version_ | 1797483749123817472 |
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| author | Haider W. Oleiwi Nagham Saeed Hamed Al-Raweshidy |
| author_facet | Haider W. Oleiwi Nagham Saeed Hamed Al-Raweshidy |
| author_sort | Haider W. Oleiwi |
| collection | DOAJ |
| description | In this paper, cooperative simultaneous wireless information and power transfer (SWIPT) terahertz (THz) multiple-input multiple-output (MIMO) nonorthogonal multiple access (NOMA) are considered. The aim is to improve wireless connectivity, resource management, scalability, and user fairness, as well as to enhance the overall performance of wireless communications and reliability. We optimized the current wireless communication systems by utilizing MIMO-NOMA technology and THz frequencies, exploring the performance and gains obtained. Hence, we developed a path-selection mechanism for the far user to enhance the system performance. The EH SWIPT approach used to improve THz communications performance was investigated. Moreover, we proposed a reliable transmission mechanism with a non-LoS (NLoS) line of THz communications for open areas or any location where the intelligent reflecting surface (IRS) cannot be deployed, in addition to using the cheap decode-forward (DF) relaying instead of IRS. The performance and scalability of the upgradeable system were examined, using adjustable parameters and the simplest modulation scheme. The system presents a noticeable improvement in energy efficiency (EE) and spectral efficiency (SE), in addition to reliability. Accordingly, the outcome showed an improvement in the overall reliability, SE, EE, and outage probability as compared to the conventional cooperative networks of the recent related work (e.g., cooperative MIMO-NOMA with THz) by multiple times with a simpler design, whereas it outperformed our previous work, i.e., cooperative SWIPT SISO-NOMA with THz, by more than 50%, with a doubled individual user gain. This system reduces the transceiver hardware and improves reliability with increasing transmission rates. |
| first_indexed | 2024-03-09T22:52:29Z |
| format | Article |
| id | doaj.art-9b36179e907c42619449543ebf18bf44 |
| institution | Directory Open Access Journal |
| issn | 2673-8732 |
| language | English |
| last_indexed | 2024-03-09T22:52:29Z |
| publishDate | 2022-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Network |
| spelling | doaj.art-9b36179e907c42619449543ebf18bf442023-11-23T18:18:23ZengMDPI AGNetwork2673-87322022-04-012225726910.3390/network2020017Cooperative SWIPT MIMO-NOMA for Reliable THz 6G CommunicationsHaider W. Oleiwi0Nagham Saeed1Hamed Al-Raweshidy2Department of Electronic and Electrical Engineering, Brunel University London, London UB8 3PH, UKSchool of Computing and Engineering, University of West London, London W5 5RF, UKDepartment of Electronic and Electrical Engineering, Brunel University London, London UB8 3PH, UKIn this paper, cooperative simultaneous wireless information and power transfer (SWIPT) terahertz (THz) multiple-input multiple-output (MIMO) nonorthogonal multiple access (NOMA) are considered. The aim is to improve wireless connectivity, resource management, scalability, and user fairness, as well as to enhance the overall performance of wireless communications and reliability. We optimized the current wireless communication systems by utilizing MIMO-NOMA technology and THz frequencies, exploring the performance and gains obtained. Hence, we developed a path-selection mechanism for the far user to enhance the system performance. The EH SWIPT approach used to improve THz communications performance was investigated. Moreover, we proposed a reliable transmission mechanism with a non-LoS (NLoS) line of THz communications for open areas or any location where the intelligent reflecting surface (IRS) cannot be deployed, in addition to using the cheap decode-forward (DF) relaying instead of IRS. The performance and scalability of the upgradeable system were examined, using adjustable parameters and the simplest modulation scheme. The system presents a noticeable improvement in energy efficiency (EE) and spectral efficiency (SE), in addition to reliability. Accordingly, the outcome showed an improvement in the overall reliability, SE, EE, and outage probability as compared to the conventional cooperative networks of the recent related work (e.g., cooperative MIMO-NOMA with THz) by multiple times with a simpler design, whereas it outperformed our previous work, i.e., cooperative SWIPT SISO-NOMA with THz, by more than 50%, with a doubled individual user gain. This system reduces the transceiver hardware and improves reliability with increasing transmission rates.https://www.mdpi.com/2673-8732/2/2/17cooperative networksenergy efficiencyenergy harvestingMIMO-NOMA path selectionoutage probabilityreliable THz communications |
| spellingShingle | Haider W. Oleiwi Nagham Saeed Hamed Al-Raweshidy Cooperative SWIPT MIMO-NOMA for Reliable THz 6G Communications Network cooperative networks energy efficiency energy harvesting MIMO-NOMA path selection outage probability reliable THz communications |
| title | Cooperative SWIPT MIMO-NOMA for Reliable THz 6G Communications |
| title_full | Cooperative SWIPT MIMO-NOMA for Reliable THz 6G Communications |
| title_fullStr | Cooperative SWIPT MIMO-NOMA for Reliable THz 6G Communications |
| title_full_unstemmed | Cooperative SWIPT MIMO-NOMA for Reliable THz 6G Communications |
| title_short | Cooperative SWIPT MIMO-NOMA for Reliable THz 6G Communications |
| title_sort | cooperative swipt mimo noma for reliable thz 6g communications |
| topic | cooperative networks energy efficiency energy harvesting MIMO-NOMA path selection outage probability reliable THz communications |
| url | https://www.mdpi.com/2673-8732/2/2/17 |
| work_keys_str_mv | AT haiderwoleiwi cooperativeswiptmimonomaforreliablethz6gcommunications AT naghamsaeed cooperativeswiptmimonomaforreliablethz6gcommunications AT hamedalraweshidy cooperativeswiptmimonomaforreliablethz6gcommunications |