LTE上行通信链路中Wi-Fi同频干扰的一种抑制方法

TN914; 考虑多接收天线的第三代移动通信长期演进(LTE, long term evolution)上行通信链路,针对该链路中的Wi-Fi同频干扰,提出了一种新的多天线合并方法:干扰重建抑制合并(IRRC, interference reconstruction rejection combining).首先估计接收信号的协方差矩阵,并将其作为干扰信号协方差矩阵的近似值;再应用干扰抑制合并(IRC, interference rejection combining)恢复期望信号;然后从接收信号中剔除期望信号,得到重建的干扰信号;最后,再次估计干扰信号的协方差矩阵,并进行干扰抑制合并.多径衰...

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Published in通信学报 no. 8; pp. 106 - 112
Main Authors 马万治, 赵宏志, 于辉越, 王俊, 唐友喜
Format Journal Article
LanguageChinese
Published 电子科技大学 通信抗干扰技术国防科技重点实验室,四川 成都 611731 2012
Subjects
干扰抑制合并
干扰重建
Wi-Fi
LTE
Online AccessGet full text
ISSN1000-436X

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Abstract TN914; 考虑多接收天线的第三代移动通信长期演进(LTE, long term evolution)上行通信链路,针对该链路中的Wi-Fi同频干扰,提出了一种新的多天线合并方法:干扰重建抑制合并(IRRC, interference reconstruction rejection combining).首先估计接收信号的协方差矩阵,并将其作为干扰信号协方差矩阵的近似值;再应用干扰抑制合并(IRC, interference rejection combining)恢复期望信号;然后从接收信号中剔除期望信号,得到重建的干扰信号;最后,再次估计干扰信号的协方差矩阵,并进行干扰抑制合并.多径衰落信道中的仿真结果表明:考虑一发两收、正交相移键控(QPSK, quadrature phase shift keying)调制、0dB干信比的LTE上行信号,与传统的IRC方法相比,最小均方误差准则下应用IRRC方法约有2dB的发射功率改善.
AbstractList TN914; 考虑多接收天线的第三代移动通信长期演进(LTE, long term evolution)上行通信链路,针对该链路中的Wi-Fi同频干扰,提出了一种新的多天线合并方法:干扰重建抑制合并(IRRC, interference reconstruction rejection combining).首先估计接收信号的协方差矩阵,并将其作为干扰信号协方差矩阵的近似值;再应用干扰抑制合并(IRC, interference rejection combining)恢复期望信号;然后从接收信号中剔除期望信号,得到重建的干扰信号;最后,再次估计干扰信号的协方差矩阵,并进行干扰抑制合并.多径衰落信道中的仿真结果表明:考虑一发两收、正交相移键控(QPSK, quadrature phase shift keying)调制、0dB干信比的LTE上行信号,与传统的IRC方法相比,最小均方误差准则下应用IRRC方法约有2dB的发射功率改善.
Author 唐友喜
王俊
赵宏志
马万治
于辉越
AuthorAffiliation 电子科技大学 通信抗干扰技术国防科技重点实验室,四川 成都 611731
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干扰重建
Wi-Fi
LTE
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Snippet TN914; 考虑多接收天线的第三代移动通信长期演进(LTE, long term evolution)上行通信链路,针对该链路中的Wi-Fi同频干扰,提出了一种新的多天线合并方法:干扰重建抑制合...
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Title LTE上行通信链路中Wi-Fi同频干扰的一种抑制方法
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