Hybrid precoding method for millimeter-wave massive MIMO systems based on IAFS algorithm
The millimeter-wave massive multiple-input multiple-output (MIMO) systems can overcome the adverse effects of the free-space signal path loss through the partial connection hybrid precoding method, which has the advantages of low hardware complexity and high energy efficiency.When the number of inpu...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2021-08-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2021192/ |
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| author | Haoyi CHEN Guangqiu LI Hui LI |
| author_facet | Haoyi CHEN Guangqiu LI Hui LI |
| author_sort | Haoyi CHEN |
| collection | DOAJ |
| description | The millimeter-wave massive multiple-input multiple-output (MIMO) systems can overcome the adverse effects of the free-space signal path loss through the partial connection hybrid precoding method, which has the advantages of low hardware complexity and high energy efficiency.When the number of input data streams is equal to the number of radio frequency (RF) links, the hybrid precoding method based on partially connected structure and serial interference cancellation can be used.When the number of input data streams is not equal to the number of RF links, a hybrid precoding method based on improved artificial fish swarm (IAFS) algorithm was proposed.The core idea is that based on the spectral efficiency optimization criteria and the characteristics of partial connected structure, the spectral efficiency optimization problem of analog recoding matrix variables was transformed into the spectral efficiency optimization problem based on vector variables, and then the IAFS algorithm was used to solve the spectrum efficiency optimization problem.The simulation results show that the proposed method has good spectral efficiency and energy efficiency under the condition of low signal-to-noise ratio, and is expected to be applied in the real scene. |
| format | Article |
| id | doaj-art-4b657b35de964e8ebac0726a2ba04238 |
| institution | DOAJ |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2021-08-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-4b657b35de964e8ebac0726a2ba042382025-08-20T02:47:00ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012021-08-0137778459814551Hybrid precoding method for millimeter-wave massive MIMO systems based on IAFS algorithmHaoyi CHENGuangqiu LIHui LIThe millimeter-wave massive multiple-input multiple-output (MIMO) systems can overcome the adverse effects of the free-space signal path loss through the partial connection hybrid precoding method, which has the advantages of low hardware complexity and high energy efficiency.When the number of input data streams is equal to the number of radio frequency (RF) links, the hybrid precoding method based on partially connected structure and serial interference cancellation can be used.When the number of input data streams is not equal to the number of RF links, a hybrid precoding method based on improved artificial fish swarm (IAFS) algorithm was proposed.The core idea is that based on the spectral efficiency optimization criteria and the characteristics of partial connected structure, the spectral efficiency optimization problem of analog recoding matrix variables was transformed into the spectral efficiency optimization problem based on vector variables, and then the IAFS algorithm was used to solve the spectrum efficiency optimization problem.The simulation results show that the proposed method has good spectral efficiency and energy efficiency under the condition of low signal-to-noise ratio, and is expected to be applied in the real scene.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2021192/millimeter wavemassive MIMOpartially connectedhybrid precodingimproved artificial fish swarm algorithm |
| spellingShingle | Haoyi CHEN Guangqiu LI Hui LI Hybrid precoding method for millimeter-wave massive MIMO systems based on IAFS algorithm Dianxin kexue millimeter wave massive MIMO partially connected hybrid precoding improved artificial fish swarm algorithm |
| title | Hybrid precoding method for millimeter-wave massive MIMO systems based on IAFS algorithm |
| title_full | Hybrid precoding method for millimeter-wave massive MIMO systems based on IAFS algorithm |
| title_fullStr | Hybrid precoding method for millimeter-wave massive MIMO systems based on IAFS algorithm |
| title_full_unstemmed | Hybrid precoding method for millimeter-wave massive MIMO systems based on IAFS algorithm |
| title_short | Hybrid precoding method for millimeter-wave massive MIMO systems based on IAFS algorithm |
| title_sort | hybrid precoding method for millimeter wave massive mimo systems based on iafs algorithm |
| topic | millimeter wave massive MIMO partially connected hybrid precoding improved artificial fish swarm algorithm |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2021192/ |
| work_keys_str_mv | AT haoyichen hybridprecodingmethodformillimeterwavemassivemimosystemsbasedoniafsalgorithm AT guangqiuli hybridprecodingmethodformillimeterwavemassivemimosystemsbasedoniafsalgorithm AT huili hybridprecodingmethodformillimeterwavemassivemimosystemsbasedoniafsalgorithm |