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- Publisher Website: 10.1109/TWC.2021.3114221
- Scopus: eid_2-s2.0-85117329217
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Article: Performance Analysis of Intelligent Reflecting Surface Assisted NOMA Networks
Title | Performance Analysis of Intelligent Reflecting Surface Assisted NOMA Networks |
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Authors | |
Keywords | 1-bit coding imperfect SIC Intelligent reflecting surface non-orthogonal multiple access |
Issue Date | 2022 |
Citation | IEEE Transactions on Wireless Communications, 2022, v. 21, n. 4, p. 2623-2636 How to Cite? |
Abstract | Intelligent reflecting surface (IRS) is a promising technology to enhance the coverage and performance of wireless networks. We consider the application of IRS to non-orthogonal multiple access (NOMA), where a base station transmits superposed signals to multiple users by the virtue of an IRS. The performance of an IRS-assisted NOMA networks with imperfect successive interference cancellation (ipSIC) and perfect successive interference cancellation (pSIC) is investigated by invoking 1-bit coding scheme. In particular, we derive new exact and asymptotic expressions for both outage probability and ergodic rate of the m -th user with ipSIC/pSIC. Based on analytical results, the diversity order of the m -th user with pSIC is in connection with the number of reflecting elements and channel ordering. The high signal-to-noise radio (SNR) slope of ergodic rate for the m -th user is obtained. The throughput and energy efficiency of IRS-NOMA networks are discussed both in delay-limited and delay-tolerant transmission modes. Additionally, we derive new exact expressions of outage probability and ergodic rate for IRS-assisted orthogonal multiple access (IRS-OMA). Numerical results are presented to substantiate our analyses and demonstrate that: i) The outage behaviors of IRS-NOMA are superior to that of IRS-OMA and relaying schemes; ii) The M -th user has a larger ergodic rate than IRS-OMA and benchmarks. However, the ergodic performance of the m -th user exceeds relaying schemes in the low SNR regime; and iii) The IRS-assisted NOMA networks have ability to achieve the enhanced energy efficiency compared to conventional cooperative communications. |
Persistent Identifier | http://hdl.handle.net/10722/349619 |
ISSN | 2023 Impact Factor: 8.9 2023 SCImago Journal Rankings: 5.371 |
DC Field | Value | Language |
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dc.contributor.author | Yue, Xinwei | - |
dc.contributor.author | Liu, Yuanwei | - |
dc.date.accessioned | 2024-10-17T06:59:44Z | - |
dc.date.available | 2024-10-17T06:59:44Z | - |
dc.date.issued | 2022 | - |
dc.identifier.citation | IEEE Transactions on Wireless Communications, 2022, v. 21, n. 4, p. 2623-2636 | - |
dc.identifier.issn | 1536-1276 | - |
dc.identifier.uri | http://hdl.handle.net/10722/349619 | - |
dc.description.abstract | Intelligent reflecting surface (IRS) is a promising technology to enhance the coverage and performance of wireless networks. We consider the application of IRS to non-orthogonal multiple access (NOMA), where a base station transmits superposed signals to multiple users by the virtue of an IRS. The performance of an IRS-assisted NOMA networks with imperfect successive interference cancellation (ipSIC) and perfect successive interference cancellation (pSIC) is investigated by invoking 1-bit coding scheme. In particular, we derive new exact and asymptotic expressions for both outage probability and ergodic rate of the m -th user with ipSIC/pSIC. Based on analytical results, the diversity order of the m -th user with pSIC is in connection with the number of reflecting elements and channel ordering. The high signal-to-noise radio (SNR) slope of ergodic rate for the m -th user is obtained. The throughput and energy efficiency of IRS-NOMA networks are discussed both in delay-limited and delay-tolerant transmission modes. Additionally, we derive new exact expressions of outage probability and ergodic rate for IRS-assisted orthogonal multiple access (IRS-OMA). Numerical results are presented to substantiate our analyses and demonstrate that: i) The outage behaviors of IRS-NOMA are superior to that of IRS-OMA and relaying schemes; ii) The M -th user has a larger ergodic rate than IRS-OMA and benchmarks. However, the ergodic performance of the m -th user exceeds relaying schemes in the low SNR regime; and iii) The IRS-assisted NOMA networks have ability to achieve the enhanced energy efficiency compared to conventional cooperative communications. | - |
dc.language | eng | - |
dc.relation.ispartof | IEEE Transactions on Wireless Communications | - |
dc.subject | 1-bit coding | - |
dc.subject | imperfect SIC | - |
dc.subject | Intelligent reflecting surface | - |
dc.subject | non-orthogonal multiple access | - |
dc.title | Performance Analysis of Intelligent Reflecting Surface Assisted NOMA Networks | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1109/TWC.2021.3114221 | - |
dc.identifier.scopus | eid_2-s2.0-85117329217 | - |
dc.identifier.volume | 21 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 2623 | - |
dc.identifier.epage | 2636 | - |
dc.identifier.eissn | 1558-2248 | - |