大规模MIMO系统中基于用户位置和用户分类的导频分配
针对大规模MIMO通信系统中存在的导频污染问题,提出了一种基于用户位置和用户分类的导频分配方案。该方案根据路径损耗和到达角设计目标函数及合理阈值,通过将用户的目标函数与阈值进行比较,把系统中所有用户分为高干扰和低干扰两类,接着为低干扰用户复用导频序列、高干扰用户分配额外正交导频序列来减轻导频污染。仿真结果表明,该方案提高了通信系统性能。...
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| Published in | 电信科学 Vol. 35; no. 10; pp. 92 - 99 |
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| Main Authors | , , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国通信学会
01.10.2019
人民邮电出版社有限公司 杭州电子科技大学,浙江杭州,310018 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1000-0801 |
| DOI | 10.11959/j.issn.1000-0801.2019191 |
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| Abstract | 针对大规模MIMO通信系统中存在的导频污染问题,提出了一种基于用户位置和用户分类的导频分配方案。该方案根据路径损耗和到达角设计目标函数及合理阈值,通过将用户的目标函数与阈值进行比较,把系统中所有用户分为高干扰和低干扰两类,接着为低干扰用户复用导频序列、高干扰用户分配额外正交导频序列来减轻导频污染。仿真结果表明,该方案提高了通信系统性能。 |
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| AbstractList | TN929.5; 针对大规模MIMO通信系统中存在的导频污染问题,提出了一种基于用户位置和用户分类的导频分配方案.该方案根据路径损耗和到达角设计目标函数及合理阈值,通过将用户的目标函数与阈值进行比较,把系统中所有用户分为高干扰和低干扰两类,接着为低干扰用户复用导频序列、高干扰用户分配额外正交导频序列来减轻导频污染.仿真结果表明,该方案提高了通信系统性能. 针对大规模MIMO通信系统中存在的导频污染问题,提出了一种基于用户位置和用户分类的导频分配方案。该方案根据路径损耗和到达角设计目标函数及合理阈值,通过将用户的目标函数与阈值进行比较,把系统中所有用户分为高干扰和低干扰两类,接着为低干扰用户复用导频序列、高干扰用户分配额外正交导频序列来减轻导频污染。仿真结果表明,该方案提高了通信系统性能。 |
| Author | 方昕 胡文娟 杨晓慧 曹海燕 马子昌 许方敏 |
| AuthorAffiliation | 杭州电子科技大学,浙江杭州,310018 |
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| Author_FL | HU Wenjuan FANG Xin MA Zichang XU Fangmin YANG Xiaohui CAO Haiyan |
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| Keywords | 可达和速率 大规模MIMO 导频分配 归一化均方误差 导频污染 信干噪比 |
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| Snippet | 针对大规模MIMO通信系统中存在的导频污染问题,提出了一种基于用户位置和用户分类的导频分配方案。该方案根据路径损耗和到达角设计目标函数及合理阈值,通过将用户的目标函数... TN929.5; 针对大规模MIMO通信系统中存在的导频污染问题,提出了一种基于用户位置和用户分类的导频分配方案.该方案根据路径损耗和到达角设计目标函数及合理阈值,通过将用户... |
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| Title | 大规模MIMO系统中基于用户位置和用户分类的导频分配 |
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