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计算机工程 ›› 2011, Vol. 37 ›› Issue (6): 9-11. doi: 10.3969/j.issn.1000-3428.2011.06.004

• 博士论文 • 上一篇    下一篇

天线相关性对D-MIMO系统极限性能的影响

汪 浩1,2,林孝康2   

  1. (1. 清华大学电子工程系,北京 100084;2. 清华大学深圳研究生院,深圳 518055)
  • 出版日期:2011-03-20 发布日期:2011-03-29
  • 作者简介:汪 浩(1981-),男,博士研究生,主研方向:多天线宽带通信系统;林孝康,教授、博士生导师
  • 基金资助:

    清华-高通CDMA无线通信研究计划基金资助项目(2007 3000463)

Impact of Antenna Correlation on D-MIMO Systems Limiting Performance

WANG Hao 1,2, LIN Xiao-kang 2   

  1. (1. Department of Electronic Engineering, Tsinghua University, Beijing 100084, China;2. Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China)
  • Online:2011-03-20 Published:2011-03-29

摘要:

研究用户设备(UE)天线相关性对多用户分布式多输入多输出(D-MIMO)系统极限性能的影响。与单用户D-MIMO系统中天线相关性会恶化系统性能的传统观点不同,仿真结果表明,在多用户环境下,UE端的天线相关性可以带来系统性能增益,该增益的主要来源是多用户分集和信道能量的聚集效应。

关键词: 分布式多输入多输出系统, 天线相关性, 多用户分集

Abstract:

This paper researches the impact of antenna correlation at User Equipment(UE) on performance limits of multi-user Distributed Multiple-Input Multiple-Output(D-MIMO) systems. Contrary to the traditional view that correlation is detrimental in a single-user D-MIMO system, simulation results show that antenna correlation at UE actually can provide a noticeable performance gain which mainly comes from two aspects, which are multi-user diversity and power focusing effect in a multi-user environment.

Key words: Distributed Multiple-Input Multiple-Output(D-MIMO) systems, antenna correlation, multi-user diversity

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