基于毫米波大规模MIMO的混合RZF预编码算法

谢斌; 谢舒闽; 刘述睿

doi:10.11959/j.issn.1000-0801.2017062

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基于毫米波大规模MIMO的混合RZF预编码算法

研究与开发 | 更新时间：2024-06-05

- 基于毫米波大规模MIMO的混合RZF预编码算法
- Hybrid RZF precoding algorithm for mmWave massive MIMO system
- 电信科学 2017年33卷第3期页码：29-35
- 作者机构：
- 作者简介：
  
  [ "谢斌（1977-），男，江西理工大学副教授，主要研究方向为大规模MIMO系统关键技术、信号处理等。" ]
  [ "谢舒闽（1988-），男，江西理工大学硕士生，主要研究方向为大规模MIMO技术。" ]
  [ "刘述睿（1992-），男，江西理工大学硕士生，主要研究方向为大规模MIMO技术。" ]
- 基金信息：
  
  国家自然科学基金资助项目;Foundation Items: The National Natural Science Foundation of China(61363076);江西省自然科学基金资助项目;The Natural Science Foundation of Jiangxi Province of China(20142BAB207020)
- DOI：10.11959/j.issn.1000-0801.2017062
  中图分类号： TN928
- 网络出版日期：2017-03，
  
  纸质出版日期：2017-03-20
- 稿件说明：
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谢斌, 谢舒闽, 刘述睿. 基于毫米波大规模MIMO的混合RZF预编码算法[J]. 电信科学, 2017,33(3):29-35.

Bin XIE, Shumin XIE, Shurui LIU. Hybrid RZF precoding algorithm for mmWave massive MIMO system[J]. Telecommunications science, 2017, 33(3): 29-35.
谢斌, 谢舒闽, 刘述睿. 基于毫米波大规模MIMO的混合RZF预编码算法[J]. 电信科学, 2017,33(3):29-35. DOI： 10.11959/j.issn.1000-0801.2017062.

Bin XIE, Shumin XIE, Shurui LIU. Hybrid RZF precoding algorithm for mmWave massive MIMO system[J]. Telecommunications science, 2017, 33(3): 29-35. DOI： 10.11959/j.issn.1000-0801.2017062.

摘要

针对毫米波大规模MIMO系统采用全数字预编码时，系统所需射频链路数量较大而导致实现成本和能耗较高的问题，提出了一种在基站端和用户端分别采用混合预编码和模拟合并的方案。在充分考虑信道特性的基础上，根据收发两端的天线阵列响应矢量分别设计模拟预编码矩阵和模拟合并矩阵，然后根据生成的有效信道矩阵，在基带部分设计低维的数字预编码，从而消除系统中噪声和用户间干扰的影响。仿真结果表明，在有效减少系统所需射频链路数量的基础上，所提混合预编码方案能够接近传统全数字预编码方案的性能。

Abstract

The high cost of system and high power consumption of the traditional full digital precoding in mmWave massive MIMO systems was studied

which caused by a large number of radio frequency (RF) chain. A scheme with hybrid precoder at base station and analog combiner at user terminal was proposed. Based on the consideration of the channel characteristic

the analog precoding vectors and analog combining vectors were designed according to the antenna array response vectors of transmitting and receiving ends

respectively.Then a low dimension digital precoding was used to eliminate the influence of system noise and inter-user interference on the basis of the effective channel matrix.Simulation results show that

on the basis of effectively reducing the number of RF chain required by the system

the proposed hybrid precoding algorithm approach the performance of the full digital precoding.

关键词

Keywords

references

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