Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-<i>m</i> Fading Channels
In this paper, we investigate the performance of non-orthogonal multiple access (NOMA)-based full-duplex Internet-of-Things (IoT) relay systems with simultaneous wireless information and power transfer (SWIPT) over Nakagami-<i>m</i> fading channels to improve the performance of a cell-ed...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-03-01
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| Series: | Sensors |
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| Online Access: | https://www.mdpi.com/1424-8220/22/5/1974 |
| _version_ | 1797473737605382144 |
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| author | Tien-Tung Nguyen Sang Quang Nguyen Phu X. Nguyen Yong-Hwa Kim |
| author_facet | Tien-Tung Nguyen Sang Quang Nguyen Phu X. Nguyen Yong-Hwa Kim |
| author_sort | Tien-Tung Nguyen |
| collection | DOAJ |
| description | In this paper, we investigate the performance of non-orthogonal multiple access (NOMA)-based full-duplex Internet-of-Things (IoT) relay systems with simultaneous wireless information and power transfer (SWIPT) over Nakagami-<i>m</i> fading channels to improve the performance of a cell-edge user under perfect and imperfect successive interference cancellation (SIC). Two scenarios, i.e., direct and non-direct links, between the source node and cell-edge user are examined. The exact closed-form analytical and approximate expressions for the outage probability, system throughput, energy efficiency, and ergodic capacities are derived and validated via Monte Carlo simulations to characterize the proposed system performance. To further improve the system performance, we also provide a low-complexity algorithm to maximize the system throughput over-optimizing the time-switching factor. The results show that our proposed NOMA system can achieve superior performance compared to its orthogonal multiple access (OMA) counterpart under perfect SIC and with a low-to-medium signal-to-noise ratio under imperfect SIC, according to the level of residual self-interference and the quality of links. |
| first_indexed | 2024-03-09T20:20:43Z |
| format | Article |
| id | doaj.art-b84ffd9e1c94429b8b79c58f44825cb7 |
| institution | Directory Open Access Journal |
| issn | 1424-8220 |
| language | English |
| last_indexed | 2024-03-09T20:20:43Z |
| publishDate | 2022-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Sensors |
| spelling | doaj.art-b84ffd9e1c94429b8b79c58f44825cb72023-11-23T23:49:13ZengMDPI AGSensors1424-82202022-03-01225197410.3390/s22051974Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-<i>m</i> Fading ChannelsTien-Tung Nguyen0Sang Quang Nguyen1Phu X. Nguyen2Yong-Hwa Kim3Faculty of Electronics Technology, Industrial University of Ho Chi Minh City (IUH), Ho Chi Minh City 700000, VietnamDepartment of Science and International Cooperation, Ho Chi Minh City University of Transport, Ho Chi Minh City 700000, VietnamDepartment of Computing Fundamentals, FPT University, Ho Chi Minh City 700000, VietnamDepartment of Data Science, Korea National University of Transportation (KNUT), Uiwang-si 16106, Gyeonggi-do, KoreaIn this paper, we investigate the performance of non-orthogonal multiple access (NOMA)-based full-duplex Internet-of-Things (IoT) relay systems with simultaneous wireless information and power transfer (SWIPT) over Nakagami-<i>m</i> fading channels to improve the performance of a cell-edge user under perfect and imperfect successive interference cancellation (SIC). Two scenarios, i.e., direct and non-direct links, between the source node and cell-edge user are examined. The exact closed-form analytical and approximate expressions for the outage probability, system throughput, energy efficiency, and ergodic capacities are derived and validated via Monte Carlo simulations to characterize the proposed system performance. To further improve the system performance, we also provide a low-complexity algorithm to maximize the system throughput over-optimizing the time-switching factor. The results show that our proposed NOMA system can achieve superior performance compared to its orthogonal multiple access (OMA) counterpart under perfect SIC and with a low-to-medium signal-to-noise ratio under imperfect SIC, according to the level of residual self-interference and the quality of links.https://www.mdpi.com/1424-8220/22/5/1974NOMAmaximum ratio transmissionAFoutage probabilityergodic capacity |
| spellingShingle | Tien-Tung Nguyen Sang Quang Nguyen Phu X. Nguyen Yong-Hwa Kim Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-<i>m</i> Fading Channels Sensors NOMA maximum ratio transmission AF outage probability ergodic capacity |
| title | Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-<i>m</i> Fading Channels |
| title_full | Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-<i>m</i> Fading Channels |
| title_fullStr | Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-<i>m</i> Fading Channels |
| title_full_unstemmed | Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-<i>m</i> Fading Channels |
| title_short | Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-<i>m</i> Fading Channels |
| title_sort | evaluation of full duplex swipt cooperative noma based iot relay networks over nakagami i m i fading channels |
| topic | NOMA maximum ratio transmission AF outage probability ergodic capacity |
| url | https://www.mdpi.com/1424-8220/22/5/1974 |
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