大规模MIMO系统中基于用户位置和用户分类的导频分配

曹海燕; 马子昌; 杨晓慧; 胡文娟; 许方敏; 方昕

doi:10.11959/j.issn.1000-0801.2019191

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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

研究与开发 | 更新时间：2024-06-05

- 大规模MIMO系统中基于用户位置和用户分类的导频分配
- Pilot allocation based on users’ location and user classification in massive MIMO system
- 电信科学 2019年35卷第10期页码：92-99
- 作者机构：
- 作者简介：
  
  [ "曹海燕（1975- ），女，博士，杭州电子科技大学副教授，主要研究方向为无线通信系统的信道编码、信号检测、LTE 物理层标准等" ]
  [ "马子昌（1995- ），男，杭州电子科技大学硕士生，主要研究方向为无线通信系统、大规模MIMO系统中的导频分配技术" ]
  [ "杨晓慧（1996- ），女，杭州电子科技大学硕士生，主要研究方向为无线通信系统、毫米波大规模MIMO系统中的预编码技术" ]
  [ "胡文娟（1994- ），女，杭州电子科技大学硕士生，主要研究方向为无线通信系统、大规模MIMO系统中的能效优化技术" ]
  [ "许方敏（1980- ），女，杭州电子科技大学讲师，主要研究方向为先进移动通信系统及其关键技术，包括干扰抑制策略、无线资源管理策略" ]
  [ "方昕（1975- ），女，杭州电子科技大学副教授，主要研究方向为4G/5G移动通信物理层算法" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(61501158)
- DOI：10.11959/j.issn.1000-0801.2019191
  中图分类号： TN929.5
- 网络出版日期：2019-10，
  
  纸质出版日期：2019-10-20
- 稿件说明：
移动端阅览
曹海燕, 马子昌, 杨晓慧, 等. 大规模MIMO系统中基于用户位置和用户分类的导频分配[J]. 电信科学, 2019,35(10):92-99.

Haiyan CAO, Zichang MA, Xiaohui YANG, et al. Pilot allocation based on users’ location and user classification in massive MIMO system[J]. Telecommunications science, 2019, 35(10): 92-99.
曹海燕, 马子昌, 杨晓慧, 等. 大规模MIMO系统中基于用户位置和用户分类的导频分配[J]. 电信科学, 2019,35(10):92-99. DOI： 10.11959/j.issn.1000-0801.2019191.

Haiyan CAO, Zichang MA, Xiaohui YANG, et al. Pilot allocation based on users’ location and user classification in massive MIMO system[J]. Telecommunications science, 2019, 35(10): 92-99. DOI： 10.11959/j.issn.1000-0801.2019191.

摘要

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。

Abstract

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.

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references

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