Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system
Time division multiplexing method is commonly used in conventional channel estimation, which results in poor efficiency of bandwidth usage. Additionally, the available pilot resources are finite due to the limited channel coherence time, and the pilot sequences must be multiplexed between the neighb...
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2016-12-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016302/ |
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| _version_ | 1841530078690803712 |
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| author | Jie LI Xiaorong JING |
| author_facet | Jie LI Xiaorong JING |
| author_sort | Jie LI |
| collection | DOAJ |
| description | Time division multiplexing method is commonly used in conventional channel estimation, which results in poor efficiency of bandwidth usage. Additionally, the available pilot resources are finite due to the limited channel coherence time, and the pilot sequences must be multiplexed between the neighbor cells, which leads to problems of pilot contamination. To solve these problems above, superimposed pilot-based channel estimation method combined with user scheduling was proposed. In the method, the users in different cells were cooperatively scheduled and assigned the same pilot by optimizing the factor of power allocation and using the signal to leakage and noise ratio （SLNR）as measure metric. Simulation results demonstrate the validity of the proposed method. |
| format | Article |
| id | doaj-art-b0b4f1fa049e4ab3b3aec6fdc747b55e |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2016-12-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-b0b4f1fa049e4ab3b3aec6fdc747b55e2025-01-15T03:13:41ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012016-12-0132677459605449Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO systemJie LIXiaorong JINGTime division multiplexing method is commonly used in conventional channel estimation, which results in poor efficiency of bandwidth usage. Additionally, the available pilot resources are finite due to the limited channel coherence time, and the pilot sequences must be multiplexed between the neighbor cells, which leads to problems of pilot contamination. To solve these problems above, superimposed pilot-based channel estimation method combined with user scheduling was proposed. In the method, the users in different cells were cooperatively scheduled and assigned the same pilot by optimizing the factor of power allocation and using the signal to leakage and noise ratio （SLNR）as measure metric. Simulation results demonstrate the validity of the proposed method.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016302/massive MIMOsuperimposed pilotfirst-order statisticssignal to leakage and noise ratiosignal to interference and noise ratio |
| spellingShingle | Jie LI Xiaorong JING Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system Dianxin kexue massive MIMO superimposed pilot first-order statistics signal to leakage and noise ratio signal to interference and noise ratio |
| title | Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system |
| title_full | Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system |
| title_fullStr | Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system |
| title_full_unstemmed | Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system |
| title_short | Superimposed pilot-based channel estimation method combined with user scheduling for large-scale MIMO system |
| title_sort | superimposed pilot based channel estimation method combined with user scheduling for large scale mimo system |
| topic | massive MIMO superimposed pilot first-order statistics signal to leakage and noise ratio signal to interference and noise ratio |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2016302/ |
| work_keys_str_mv | AT jieli superimposedpilotbasedchannelestimationmethodcombinedwithuserschedulingforlargescalemimosystem AT xiaorongjing superimposedpilotbasedchannelestimationmethodcombinedwithuserschedulingforlargescalemimosystem |