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- Publisher Website: 10.1109/LCOMM.2022.3194363
- Scopus: eid_2-s2.0-85135738485
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Article: Ergodic Rate Analysis of STAR-RIS Aided NOMA Systems
| Title | Ergodic Rate Analysis of STAR-RIS Aided NOMA Systems |
|---|---|
| Authors | |
| Keywords | ergodic rate high SNR slope NOMA STAR-RIS |
| Issue Date | 2022 |
| Citation | IEEE Communications Letters, 2022, v. 26, n. 10, p. 2297-2301 How to Cite? |
| Abstract | This letter analyzes the ergodic rates of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) system, where the direct links from the base station to cell-edge users are non-line-of-sight due to obstacles, and STAR-RIS is used to provide line-of-sight links to these cell-edge users. By fitting the distribution of the composite channel power gain to a gamma distribution, we derive the closed-form expressions of ergodic rates and high signal-to-noise ratio (SNR) slopes for cell-edge users. Numerical results reveal that 1) the ergodic rates increase with the number of STAR-RIS elements, and the high SNR slopes are fixed as constants; 2) STAR-RIS aided NOMA systems achieve higher ergodic rates than conventional RIS aided NOMA systems. |
| Persistent Identifier | http://hdl.handle.net/10722/349768 |
| ISSN | 2023 Impact Factor: 3.7 2023 SCImago Journal Rankings: 1.887 |
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Zhao, Boqun | - |
| dc.contributor.author | Zhang, Chao | - |
| dc.contributor.author | Yi, Wenqiang | - |
| dc.contributor.author | Liu, Yuanwei | - |
| dc.date.accessioned | 2024-10-17T07:00:41Z | - |
| dc.date.available | 2024-10-17T07:00:41Z | - |
| dc.date.issued | 2022 | - |
| dc.identifier.citation | IEEE Communications Letters, 2022, v. 26, n. 10, p. 2297-2301 | - |
| dc.identifier.issn | 1089-7798 | - |
| dc.identifier.uri | http://hdl.handle.net/10722/349768 | - |
| dc.description.abstract | This letter analyzes the ergodic rates of a simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) aided non-orthogonal multiple access (NOMA) system, where the direct links from the base station to cell-edge users are non-line-of-sight due to obstacles, and STAR-RIS is used to provide line-of-sight links to these cell-edge users. By fitting the distribution of the composite channel power gain to a gamma distribution, we derive the closed-form expressions of ergodic rates and high signal-to-noise ratio (SNR) slopes for cell-edge users. Numerical results reveal that 1) the ergodic rates increase with the number of STAR-RIS elements, and the high SNR slopes are fixed as constants; 2) STAR-RIS aided NOMA systems achieve higher ergodic rates than conventional RIS aided NOMA systems. | - |
| dc.language | eng | - |
| dc.relation.ispartof | IEEE Communications Letters | - |
| dc.subject | ergodic rate | - |
| dc.subject | high SNR slope | - |
| dc.subject | NOMA | - |
| dc.subject | STAR-RIS | - |
| dc.title | Ergodic Rate Analysis of STAR-RIS Aided NOMA Systems | - |
| dc.type | Article | - |
| dc.description.nature | link_to_subscribed_fulltext | - |
| dc.identifier.doi | 10.1109/LCOMM.2022.3194363 | - |
| dc.identifier.scopus | eid_2-s2.0-85135738485 | - |
| dc.identifier.volume | 26 | - |
| dc.identifier.issue | 10 | - |
| dc.identifier.spage | 2297 | - |
| dc.identifier.epage | 2301 | - |
| dc.identifier.eissn | 1558-2558 | - |