Performance analysis of massive MIMO uplink with channel aging in high-speed mobile scenario

Lihua YANG; Yan LIANG

doi:10.11959/j.issn.1000−0801.2017179

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Performance analysis of massive MIMO uplink with channel aging in high-speed mobile scenario

research and development | 更新时间：2024-06-05

- Performance analysis of massive MIMO uplink with channel aging in high-speed mobile scenario
- Telecommunications Science Vol. 33, Issue 7, Pages: 19-27(2017)
- 作者机构：
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- DOI：10.11959/j.issn.1000−0801.2017179
  CLC： TN929.5
- Published Online：2017-07，
  
  Published：20 July 2017
- 稿件说明：
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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：

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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