Hybrid precoding method for mmWave massive MIMO systems based on LFM
Analog-digital hybrid precoding is a key technology for millimeter wave massive MIMO systems that reduce hardware costs while balancing system performance.However,the traditional hybrid precoding scheme often needed to find a suitable codebook for precoding,and some codebooks were not easy to obtain...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2019-06-01
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| Series: | Dianxin kexue |
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| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2019069/ |
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| author | Haoyi CHEN Yifan DING Ying CHENG |
| author_facet | Haoyi CHEN Yifan DING Ying CHENG |
| author_sort | Haoyi CHEN |
| collection | DOAJ |
| description | Analog-digital hybrid precoding is a key technology for millimeter wave massive MIMO systems that reduce hardware costs while balancing system performance.However,the traditional hybrid precoding scheme often needed to find a suitable codebook for precoding,and some codebooks were not easy to obtain or had deviations in actual situations.An analog-digital hybrid precoding method based on latent factor model (LFM) in machine learning without codebook was proposed for this problem.The LFM decomposition and stochastic gradient descent method were used to approximate the designed precoding matrix to the optimal full digital precoding matrix for good performance.The simulation results show that compared with the hybrid precoding design method based on orthogonal matching pursuit (OMP) algorithm,this method not only does not need a codebook,but also has better performance than the hybrid precoding algorithm based on OMP algorithm,which is closer to optimal full digital precoding method. |
| format | Article |
| id | doaj-art-bfc0cc9eadd24be7880c31d2dccc43f2 |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2019-06-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-bfc0cc9eadd24be7880c31d2dccc43f22025-01-15T03:02:46ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012019-06-0135899559589406Hybrid precoding method for mmWave massive MIMO systems based on LFMHaoyi CHENYifan DINGYing CHENGAnalog-digital hybrid precoding is a key technology for millimeter wave massive MIMO systems that reduce hardware costs while balancing system performance.However,the traditional hybrid precoding scheme often needed to find a suitable codebook for precoding,and some codebooks were not easy to obtain or had deviations in actual situations.An analog-digital hybrid precoding method based on latent factor model (LFM) in machine learning without codebook was proposed for this problem.The LFM decomposition and stochastic gradient descent method were used to approximate the designed precoding matrix to the optimal full digital precoding matrix for good performance.The simulation results show that compared with the hybrid precoding design method based on orthogonal matching pursuit (OMP) algorithm,this method not only does not need a codebook,but also has better performance than the hybrid precoding algorithm based on OMP algorithm,which is closer to optimal full digital precoding method.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2019069/LFMmillimeter wavemassive MIMOhybrid precoding |
| spellingShingle | Haoyi CHEN Yifan DING Ying CHENG Hybrid precoding method for mmWave massive MIMO systems based on LFM Dianxin kexue LFM millimeter wave massive MIMO hybrid precoding |
| title | Hybrid precoding method for mmWave massive MIMO systems based on LFM |
| title_full | Hybrid precoding method for mmWave massive MIMO systems based on LFM |
| title_fullStr | Hybrid precoding method for mmWave massive MIMO systems based on LFM |
| title_full_unstemmed | Hybrid precoding method for mmWave massive MIMO systems based on LFM |
| title_short | Hybrid precoding method for mmWave massive MIMO systems based on LFM |
| title_sort | hybrid precoding method for mmwave massive mimo systems based on lfm |
| topic | LFM millimeter wave massive MIMO hybrid precoding |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2019069/ |
| work_keys_str_mv | AT haoyichen hybridprecodingmethodformmwavemassivemimosystemsbasedonlfm AT yifanding hybridprecodingmethodformmwavemassivemimosystemsbasedonlfm AT yingcheng hybridprecodingmethodformmwavemassivemimosystemsbasedonlfm |