Pilot allocation based on users’ location and user classification in massive MIMO system
Aiming at the problem of pilot contamination in massive MIMO systems,a pilot allocation scheme based on users’ location and user classification was proposed.The scheme designed the objective function and reasonable threshold based on path loss and angle of arrival.By comparing the user’s objective f...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | zho |
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Beijing Xintong Media Co., Ltd
2019-10-01
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| Series: | Dianxin kexue |
| Subjects: | |
| Online Access: | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2019191/ |
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| _version_ | 1841530560545030144 |
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| author | Haiyan CAO Zichang MA Xiaohui YANG Wenjuan HU Fangmin XU Xin FANG |
| author_facet | Haiyan CAO Zichang MA Xiaohui YANG Wenjuan HU Fangmin XU Xin FANG |
| author_sort | Haiyan CAO |
| collection | DOAJ |
| description | Aiming at the problem of pilot contamination in massive MIMO systems,a pilot allocation scheme based on users’ location and user classification was proposed.The scheme designed the objective function and reasonable threshold based on path loss and angle of arrival.By comparing the user’s objective function with the threshold,all users in the system were divided into two types:high interference and low interference,and the low-interference users multiplex pilot sequences and extra orthogonal pilot sequences were assigned to high interference users to mitigate pilot contamination.Simulation results show that the scheme improves the performance of the communication system. |
| format | Article |
| id | doaj-art-f4ce216f0f4f4a13b044406da2977f97 |
| institution | Kabale University |
| issn | 1000-0801 |
| language | zho |
| publishDate | 2019-10-01 |
| publisher | Beijing Xintong Media Co., Ltd |
| record_format | Article |
| series | Dianxin kexue |
| spelling | doaj-art-f4ce216f0f4f4a13b044406da2977f972025-01-15T03:02:12ZzhoBeijing Xintong Media Co., LtdDianxin kexue1000-08012019-10-0135929959586695Pilot allocation based on users’ location and user classification in massive MIMO systemHaiyan CAOZichang MAXiaohui YANGWenjuan HUFangmin XUXin FANGAiming at the problem of pilot contamination in massive MIMO systems,a pilot allocation scheme based on users’ location and user classification was proposed.The scheme designed the objective function and reasonable threshold based on path loss and angle of arrival.By comparing the user’s objective function with the threshold,all users in the system were divided into two types:high interference and low interference,and the low-interference users multiplex pilot sequences and extra orthogonal pilot sequences were assigned to high interference users to mitigate pilot contamination.Simulation results show that the scheme improves the performance of the communication system.http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2019191/massive MIMOpilot contaminationpilot allocationNMSEsignal to noise ratioachievable sum rate |
| spellingShingle | Haiyan CAO Zichang MA Xiaohui YANG Wenjuan HU Fangmin XU Xin FANG Pilot allocation based on users’ location and user classification in massive MIMO system Dianxin kexue massive MIMO pilot contamination pilot allocation NMSE signal to noise ratio achievable sum rate |
| title | Pilot allocation based on users’ location and user classification in massive MIMO system |
| title_full | Pilot allocation based on users’ location and user classification in massive MIMO system |
| title_fullStr | Pilot allocation based on users’ location and user classification in massive MIMO system |
| title_full_unstemmed | Pilot allocation based on users’ location and user classification in massive MIMO system |
| title_short | Pilot allocation based on users’ location and user classification in massive MIMO system |
| title_sort | pilot allocation based on users location and user classification in massive mimo system |
| topic | massive MIMO pilot contamination pilot allocation NMSE signal to noise ratio achievable sum rate |
| url | http://www.telecomsci.com/zh/article/doi/10.11959/j.issn.1000-0801.2019191/ |
| work_keys_str_mv | AT haiyancao pilotallocationbasedonuserslocationanduserclassificationinmassivemimosystem AT zichangma pilotallocationbasedonuserslocationanduserclassificationinmassivemimosystem AT xiaohuiyang pilotallocationbasedonuserslocationanduserclassificationinmassivemimosystem AT wenjuanhu pilotallocationbasedonuserslocationanduserclassificationinmassivemimosystem AT fangminxu pilotallocationbasedonuserslocationanduserclassificationinmassivemimosystem AT xinfang pilotallocationbasedonuserslocationanduserclassificationinmassivemimosystem |