信道老化时高速移动大规模MIMO上行系统的性能分析

杨丽花; 梁彦

doi:10.11959/j.issn.1000−0801.2017179

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信道老化时高速移动大规模MIMO上行系统的性能分析

研究与开发 | 更新时间：2024-06-05

- 信道老化时高速移动大规模MIMO上行系统的性能分析
- Performance analysis of massive MIMO uplink with channel aging in high-speed mobile scenario
- 电信科学 2017年33卷第7期页码：19-27
- 作者机构：
- 作者简介：
  
  [ "杨丽花（1984−），女，南京邮电大学讲师，主要研究方向为移动无线通信、通信信号处理、多载波通信系统等。" ]
  [ "梁彦（1979−），女，南京邮电大学讲师，主要研究方向为宽带无线通信、通信信号处理等。" ]
- 基金信息：
  
  国家高技术研究发展计划（“863”计划）基金资助项目;The National High Technology Research and Development Program of China (863 Program)(2014AA01A705);国家自然科学基金资助项目;The National Natural Science Foundation of China(61401232);国家自然科学基金资助项目;The National Natural Science Foundation of China(61501254);国家自然科学基金资助项目;The National Natural Science Foundation of China(61401225)
- DOI：10.11959/j.issn.1000−0801.2017179
  中图分类号： TN929.5
- 网络出版日期：2017-07，
  
  纸质出版日期：2017-07-20
- 稿件说明：
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杨丽花, 梁彦. 信道老化时高速移动大规模MIMO上行系统的性能分析[J]. 电信科学, 2017,33(7):19-27.

Lihua YANG, Yan LIANG. Performance analysis of massive MIMO uplink with channel aging in high-speed mobile scenario[J]. Telecommunications science, 2017, 33(7): 19-27.
杨丽花, 梁彦. 信道老化时高速移动大规模MIMO上行系统的性能分析[J]. 电信科学, 2017,33(7):19-27. DOI： 10.11959/j.issn.1000−0801.2017179.

Lihua YANG, Yan LIANG. Performance analysis of massive MIMO uplink with channel aging in high-speed mobile scenario[J]. Telecommunications science, 2017, 33(7): 19-27. DOI： 10.11959/j.issn.1000−0801.2017179.

摘要

针对高速移动场景下大规模多输入多输出（MIMO）上行通信系统，推导了时变莱斯衰落信道中信道老化时大规模MIMO上行通信系统的可达和速率表达式，并且分析了信道老化对系统功率缩放准则的影响。理论分析与仿真结果表明，在时变莱斯信道中，每个用户的发送功率按照1/M进行缩放，信道老化仅会引起系统可达和速率的降低，而莱斯因子对系统可达和速率及功率缩放准则均有影响，且信道老化对系统可达和速率的影响较莱斯因子的影响可以忽略不计。

Abstract

Achievable sum rate was investigated for the massive multiple input multiple output (MIMO) uplink system with channel aging in the high-speed mobile scenario

and the effect of both channel aging and the Ricean factor on the power scaling law was characterized.Theoretical analysis and simulation results show that the transmit power of each user is scaled down by 1/M for the time varying Rican fading channel indicating that the Ricean factor affects the power scaling law and sum rate

and achievable channel aging only leads to a reduction of the sum rate.Moreover

the effect of channel aging on the sum rate can be ignored compared with that of the Ricean factor in the time varying Ricean fading channel.

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references

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大规模MIMO系统中基于用户位置和用户分类的导频分配

大规模MIMO系统中的动态导频分配方案