PMID- 35271121 OWN - NLM STAT- MEDLINE DCOM- 20220314 LR - 20220317 IS - 1424-8220 (Electronic) IS - 1424-8220 (Linking) VI - 22 IP - 5 DP - 2022 Mar 3 TI - Evaluation of Full-Duplex SWIPT Cooperative NOMA-Based IoT Relay Networks over Nakagami-m Fading Channels. LID - 10.3390/s22051974 [doi] LID - 1974 AB - 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-m 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. FAU - Nguyen, Tien-Tung AU - Nguyen TT AUID- ORCID: 0000-0001-7380-7591 AD - Faculty of Electronics Technology, Industrial University of Ho Chi Minh City (IUH), Ho Chi Minh City 700000, Vietnam. FAU - Nguyen, Sang Quang AU - Nguyen SQ AUID- ORCID: 0000-0002-1798-2296 AD - Department of Science and International Cooperation, Ho Chi Minh City University of Transport, Ho Chi Minh City 700000, Vietnam. FAU - Nguyen, Phu X AU - Nguyen PX AUID- ORCID: 0000-0001-8637-2507 AD - Department of Computing Fundamentals, FPT University, Ho Chi Minh City 700000, Vietnam. FAU - Kim, Yong-Hwa AU - Kim YH AUID- ORCID: 0000-0003-2183-5085 AD - Department of Data Science, Korea National University of Transportation (KNUT), Uiwang-si 16106, Gyeonggi-do, Korea. LA - eng GR - 144/HEth-EthHCN/Industrial University of Ho Chi Minh City/ GR - 19R1A2C2086621/National Research Foundation of Korea (NRF)/ GR - 2022/Korea National University of Transportation/ PT - Journal Article DEP - 20220303 PL - Switzerland TA - Sensors (Basel) JT - Sensors (Basel, Switzerland) JID - 101204366 SB - IM MH - Algorithms MH - Humans MH - Monte Carlo Method MH - *Noma MH - Probability MH - Signal-To-Noise Ratio PMC - PMC8915111 OTO - NOTNLM OT - AF OT - NOMA OT - ergodic capacity OT - maximum ratio transmission OT - outage probability COIS- We have also no conflicts of interest to disclose. EDAT- 2022/03/11 06:00 MHDA- 2022/03/15 06:00 PMCR- 2022/03/03 CRDT- 2022/03/10 15:42 PHST- 2022/02/08 00:00 [received] PHST- 2022/02/23 00:00 [revised] PHST- 2022/02/28 00:00 [accepted] PHST- 2022/03/10 15:42 [entrez] PHST- 2022/03/11 06:00 [pubmed] PHST- 2022/03/15 06:00 [medline] PHST- 2022/03/03 00:00 [pmc-release] AID - s22051974 [pii] AID - sensors-22-01974 [pii] AID - 10.3390/s22051974 [doi] PST - epublish SO - Sensors (Basel). 2022 Mar 3;22(5):1974. doi: 10.3390/s22051974.