Design of hybrid field beamforming scheme for STAR-RIS-aided communication systems
A beamforming design scheme was proposed based on simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) communication systems. To address the hybrid near-far field challenges induced by extremely large-scale antenna arrays (ELAA), a hybrid channel model based on ar...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Journal on Communications
2025-07-01
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| Series: | Tongxin xuebao |
| Subjects: | |
| Online Access: | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2025099/ |
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| author | SHAO Kai WANG Hongyu WANG Guangyu |
| author_facet | SHAO Kai WANG Hongyu WANG Guangyu |
| author_sort | SHAO Kai |
| collection | DOAJ |
| description | A beamforming design scheme was proposed based on simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) communication systems. To address the hybrid near-far field challenges induced by extremely large-scale antenna arrays (ELAA), a hybrid channel model based on array steering vectors was established first. Subsequently, a hybrid clustering strategy for far-near field users based on hybrid non-orthogonal multiple access (H-NOMA) and a serial interference cancellation (SIC) scheme at the receiving end were proposed to match far-near field users according to the channel strength from STAR-RIS to users. Through joint optimization of beamforming vectors and STAR-RIS phase shift matrices, a suboptimal solution was derived for the max-min total rate optimization problem. Simulation results demonstrate the superior performance of the proposed scheme in hybrid scenarios, where STAR-RIS and H-NOMA effectively enhance system performance. Compared with conventional passive RIS, orthogonal multiple access (OMA), and far-field channel modeling approaches, the proposed scheme achieves 220.9%, 71.2%, and 23.4% improvements in max-min total rate, respectively. |
| format | Article |
| id | doaj-art-60e999191d1f4e2faffbd14d7f0fc648 |
| institution | Kabale University |
| issn | 1000-436X |
| language | zho |
| publishDate | 2025-07-01 |
| publisher | Editorial Department of Journal on Communications |
| record_format | Article |
| series | Tongxin xuebao |
| spelling | doaj-art-60e999191d1f4e2faffbd14d7f0fc6482025-08-20T03:41:14ZzhoEditorial Department of Journal on CommunicationsTongxin xuebao1000-436X2025-07-0146109118120191163Design of hybrid field beamforming scheme for STAR-RIS-aided communication systemsSHAO KaiWANG HongyuWANG GuangyuA beamforming design scheme was proposed based on simultaneously transmitting and reflecting reconfigurable intelligent surface (STAR-RIS) communication systems. To address the hybrid near-far field challenges induced by extremely large-scale antenna arrays (ELAA), a hybrid channel model based on array steering vectors was established first. Subsequently, a hybrid clustering strategy for far-near field users based on hybrid non-orthogonal multiple access (H-NOMA) and a serial interference cancellation (SIC) scheme at the receiving end were proposed to match far-near field users according to the channel strength from STAR-RIS to users. Through joint optimization of beamforming vectors and STAR-RIS phase shift matrices, a suboptimal solution was derived for the max-min total rate optimization problem. Simulation results demonstrate the superior performance of the proposed scheme in hybrid scenarios, where STAR-RIS and H-NOMA effectively enhance system performance. Compared with conventional passive RIS, orthogonal multiple access (OMA), and far-field channel modeling approaches, the proposed scheme achieves 220.9%, 71.2%, and 23.4% improvements in max-min total rate, respectively.http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2025099/hybrid near-far field communicationhybrid non-orthogonal multiple accessSTAR-RISbeamforming |
| spellingShingle | SHAO Kai WANG Hongyu WANG Guangyu Design of hybrid field beamforming scheme for STAR-RIS-aided communication systems Tongxin xuebao hybrid near-far field communication hybrid non-orthogonal multiple access STAR-RIS beamforming |
| title | Design of hybrid field beamforming scheme for STAR-RIS-aided communication systems |
| title_full | Design of hybrid field beamforming scheme for STAR-RIS-aided communication systems |
| title_fullStr | Design of hybrid field beamforming scheme for STAR-RIS-aided communication systems |
| title_full_unstemmed | Design of hybrid field beamforming scheme for STAR-RIS-aided communication systems |
| title_short | Design of hybrid field beamforming scheme for STAR-RIS-aided communication systems |
| title_sort | design of hybrid field beamforming scheme for star ris aided communication systems |
| topic | hybrid near-far field communication hybrid non-orthogonal multiple access STAR-RIS beamforming |
| url | http://www.joconline.com.cn/zh/article/doi/10.11959/j.issn.1000-436x.2025099/ |
| work_keys_str_mv | AT shaokai designofhybridfieldbeamformingschemeforstarrisaidedcommunicationsystems AT wanghongyu designofhybridfieldbeamformingschemeforstarrisaidedcommunicationsystems AT wangguangyu designofhybridfieldbeamformingschemeforstarrisaidedcommunicationsystems |