一种基于友好干扰者协助的区别信道估计机制

张蓉; 谢显中; 雷维嘉

doi:10.11959/j.issn.1000-0801.2015072

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一种基于友好干扰者协助的区别信道估计机制

研究与开发 | 更新时间：2024-06-05

- 一种基于友好干扰者协助的区别信道估计机制
- A Discriminatory Channel Estimation Scheme Based on the Aid of Friendly Jammer
- 电信科学 2015年31卷第3期页码：104-108
- 作者机构：
- 作者简介：
  
  [ "张蓉，女，重庆邮电大学硕士生，主要研究方向为物理层安全。" ]
  [ "谢显中，男，博士，重庆邮电大学个人通信研究所教授、硕士生导师，主要从事移动通信技术、通信信号处理和通信应用软件方面的研究。" ]
  [ "雷维嘉，男，博士，重庆邮电大学个人通信研究所教授、硕士生导师，主要从事无线通信技术、嵌入式系统的研究及开发，并担任研究生教学工作。" ]
- 基金信息：
  
  国家自然科学基金资助项目;The National Natural Science Foundation of China(61271259);国家自然科学基金资助项目;The National Natural Science Foundation of China(61301123);重庆市自然科学基金资助项目;The Natural Science Foundation of Chongqing(CTSC2011jjA40006);重庆市教委科学技术研究项目资助课题;The Research Project of Chongqing Education Commission(KJ120501);重庆市教委科学技术研究基金资助项目;The Science and Technology Research Foundation Affiliated to The Education Department of Chongqing(KJ110530)
- DOI：10.11959/j.issn.1000-0801.2015072
  中图分类号：
- 网络出版日期：2015-03，
  
  纸质出版日期：2015-03-20
- 稿件说明：
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张蓉, 谢显中, 雷维嘉. 一种基于友好干扰者协助的区别信道估计机制[J]. 电信科学, 2015,31(3):104-108.

Rong Zhang, Xianzhong Xie, Weijia Lei. A Discriminatory Channel Estimation Scheme Based on the Aid of Friendly Jammer[J]. Telecommunications science, 2015, 31(3): 104-108.
张蓉, 谢显中, 雷维嘉. 一种基于友好干扰者协助的区别信道估计机制[J]. 电信科学, 2015,31(3):104-108. DOI： 10.11959/j.issn.1000-0801.2015072.

Rong Zhang, Xianzhong Xie, Weijia Lei. A Discriminatory Channel Estimation Scheme Based on the Aid of Friendly Jammer[J]. Telecommunications science, 2015, 31(3): 104-108. DOI： 10.11959/j.issn.1000-0801.2015072.

摘要

在物理层安全中，可以通过抑制窃听者信道估计的准确性间接提高合法接收者和窃听者间的接收信号质量差距，从而提高信号传输安全性。给出一种基于友好干扰者协助的区别信道估计机制，该方案借助于友好干扰者发送人工噪声来干扰窃听者的信道估计过程。进一步，基于窃听者的信道估计误差最大化给出了训练序列和人工噪声之间的最优功率分配，更好地抑制了窃听者信道估计的质量。仿真结果表明，新方法能有效地抑制窃听者信道估计的性能，提高合法接收者和窃听者间的接收信号质量差距。

Abstract

In the physical layer security

that inhibiting the accuracy of channel estimation at eavesdropper can indirectly enhance the received signal quality difference between the legitimate receiver and the eavesdropper

thus improving signal transmission security.The proposed discriminatory channel estimation scheme was based on the help of friendly jammer

which was based on artificial noise emitted by friendly jammer to interfere the channel estimation process of the eavesdropper.Further

the optimal power allocation was given between training sequence and artificial noise by maximizing the channel estimation error of the eavesdropper

which can suppress the channel estimation quality of the eavesdropper more effectively.Simulation results show that this method can effectively restrain the channel estimation performance of the eavesdropper

and it can improve the received signal quality gap between the legitimate receiver and the eavesdropper.

关键词

Keywords

references

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Kay S M . Fundamentals of Statistical Signal Processing:Estimation Theory . NJ:PTR Prentice-Hall , 1993

Boyd S , Vandenberghe L . Convex Optimization . UK : Cambridge University Press , 2004

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