数字波束成形中峰均比抑制方法的研究

doi:10.11959/j.issn.1000-436x.2018030

通信学报 ›› 2018, Vol. 39 ›› Issue (2): 114-121.doi: 10.11959/j.issn.1000-436x.2018030

数字波束成形中峰均比抑制方法的研究

刘璐^1,²,赵国庆¹

¹ 西安电子科技大学电子工程学院，陕西西安 710071
² 西安邮电大学通信与信息工程学院，陕西西安 710121

修回日期:2018-01-18 出版日期:2018-02-01 发布日期:2018-03-28
作者简介:刘璐（1988-），女，陕西兴平人，西安电子科技大学博士生，西安邮电大学工程师，主要研究方向为信号处理、信息对抗等。|赵国庆（1953-），男，上海人，西安电子科技大学教授、博士生导师，主要研究方向为电子对抗、电子干扰等。
基金资助:
陕西省科技研究发展（攻关）计划基金资助项目(2016YFJH2-08)

Method on PAPR reduction in digital beam-forming

Lu LIU^1,²,Guoqing ZHAO¹

¹ School of Electronic Engineering,Xidian University,Xi’an 710071,China
² School of Telecommunication and Information,Xi’an University of Posts and Telecommunications,Xi’an 710121,China

Revised:2018-01-18 Online:2018-02-01 Published:2018-03-28
Supported by:
Shaanxi Province Science Research Program Foundation of China(2016YFJH2-08)

摘要/Abstract

摘要：

数字波束成形技术是5G通信中的关键技术之一。然而，数字波束成形中过高的峰均比会造成信号发射端功率放大器进入非线性工作区域。针对现阶段概率类方法中的选择性映射类算法带宽利用率低和运算复杂度高的问题，提出一种基于 MUSIC 算法的盲选择性映射方法。该方法不用传输边带信息，就可提高频带的利用率；同时，在运算复杂度和峰均比的抑制效果上，所提方法较选择性映射算法有一定的改善。

关键词: 数字波束成形, 峰均比抑制, 选择性映射算法, MUSIC算法

Abstract:

Digital beam-forming technology is one of the key technologies in 5G communication.However,the high peak-to-average power ratio in digital beam-forming would make the power amplifier work in the nonlinear region.Nowadays,the solutions to the high peak-to-average power ratio,such as selected mapping,embedded side information selected mapping have some faults:the complexity is high,and the utilization of the bandwidth is low.A blind selected mapping method to reduce the high peak-to-average power ratio based on MUSIC algorithm was proposed.In this method,the side information was omitted,so the utilization of the bandwidth was improved.Simultaneously,the result of the peak-to-average power ratio reduction and the complexity is much more enhanced.

Key words: digital beam-forming, PAPR reduction, selected mapping, MUSIC algorithm

中图分类号:

TN911

刘璐,赵国庆. 数字波束成形中峰均比抑制方法的研究[J]. 通信学报, 2018, 39(2): 114-121.

Lu LIU,Guoqing ZHAO. Method on PAPR reduction in digital beam-forming[J]. Journal on Communications, 2018, 39(2): 114-121.

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参考文献 15

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运算过程	C-SLM	MB-SLM
相位序列过程	4U ²	U²
LCMV波束成形迭代过程	4kU²	kU ²

不同仿真参数	MB-SLM	C-SLM	ESI-SLM
SNR=10 dB	10×10^?6	10×10^?5	10×10^?2
U=20
SNR=15 dB	10×10^?7	10×10^?6	10×10^?3
U=10
SNR=-5 dB	10×10^?5	10×10^?4	10×10^?1
U=30

数字波束成形中峰均比抑制方法的研究

Method on PAPR reduction in digital beam-forming

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