非相关切换天线扩频方向调制物理层安全传输

doi:10.3969/j.issn.1001-2400.2017.02.025

西安电子科技大学学报

非相关切换天线扩频方向调制物理层安全传输

郭彬;杨育红;辛刚;唐燕群

(信息工程大学信息系统工程学院，河南郑州 450001)

收稿日期:2016-01-15 出版日期:2017-04-20 发布日期:2017-05-26
作者简介:郭彬(1990-)，男，信息工程大学硕士研究生，E-mail: dcr_2013@163.com
基金资助:
国家863计划资助项目(2015AA01A708)

Spread spectrum directional modulation method based on the irrelevantly switched antenna for physical layer security transmission

GUO Bin;YANG Yuhong;XIN Gang;TANG Yanqun

(Institute of Information Engineering, Information Engineering Univ., Zhengzhou 450001, China)

Received:2016-01-15 Online:2017-04-20 Published:2017-05-26

摘要/Abstract

摘要：

为了提高无线通信的安全性，提出了一种非相关切换天线扩频方向调制方法．首先分析了现有切换天线合成扩频方向调制方法存在的安全漏洞，指出该方法在特定的通信角度存在泄密隐患；然后通过分析安全漏洞存在的原因，将天线切换过程与扩频实现过程独立分开，从而消除了泄密角度；最后仿真对比了两种方法的物理层安全性能．结果表明，这种方法具有更好的低截获性和抗干扰能力．

关键词: 物理层安全, 扩频通信, 方向调制, 切换, 阵列天线

Abstract:

In order to improve the security of wireless communication, a spread spectrum directional modulation method based on the irrelevantly switched antenna is presented. First, the security vulnerabilities of the existing spread spectrum directional modulation method are analyzed, indicating that the existing method has the risk of security leakage in some particular directions. Then by locating the security vulnerabilities of the existing method, a security-enhanced method is proposed by separating the antenna switching from the spectrum spreading to eliminate the security vulnerabilities. Finally, the physical layer security performance of two directional modulation methods is simulated, with the results showing that the proposed method has a better low detection performance and anti-jamming capability.

Key words: physical layer security, spread spectrum communication, directional modulation, switch, antenna array

郭彬;杨育红;辛刚;唐燕群. 非相关切换天线扩频方向调制物理层安全传输[J]. 西安电子科技大学学报, 2017, 44(2): 145-150.

GUO Bin;YANG Yuhong;XIN Gang;TANG Yanqun. Spread spectrum directional modulation method based on the irrelevantly switched antenna for physical layer security transmission[J]. Journal of Xidian University, 2017, 44(2): 145-150.

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非相关切换天线扩频方向调制物理层安全传输

Spread spectrum directional modulation method based on the irrelevantly switched antenna for physical layer security transmission

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