Physical layer security enhanced system with under-sampling spectrum-sparse signals

中国邮电高校学报(英文) ›› 2019, Vol. 26 ›› Issue (4): 8-16.doi: DOI: 10.19682/j.cnki.1005-8885.2019.1012

• Wireless • 上一篇下一篇

Physical layer security enhanced system with under-sampling spectrum-sparse signals

Li Lintao, Liu Yuanan

School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

收稿日期:2019-04-09 修回日期:2019-07-30 出版日期:2019-08-31 发布日期:2019-10-29
通讯作者: Corresponding author: Li Lintao, E-mail:Lintao.Li@ieee.org E-mail:Lintao.Li@ieee.org
作者简介:Corresponding author: Li Lintao, E-mail:Lintao.Li@ieee.org
基金资助:

Physical layer security enhanced system with

under-sampling spectrum-sparse signals

Li Lintao, Liu Yuanan

School of Electronic Engineering, Beijing University of Posts and Telecommunications, Beijing 100876, China

Received:2019-04-09 Revised:2019-07-30 Online:2019-08-31 Published:2019-10-29
Contact: Corresponding author: Li Lintao, E-mail:Lintao.Li@ieee.org E-mail:Lintao.Li@ieee.org
About author:Corresponding author: Li Lintao, E-mail:Lintao.Li@ieee.org
Supported by:

摘要/Abstract

摘要： The ubiquity of wireless communication systems has resulted in extensive concern regarding their security issues.

A practical secure transmission scheme based on under-sampling spectrum-sparse signals is designed. Secure

transmission is initialized as the intended receiver transmits a pilot signal for the transmitter, to perform channel

sounding and clock synchronization according to the channel reciprocal principle. Then, sampling clock offset

compensation and precoding method based on channel state information (CSI) can be conducted at the transmitter's

end. Because the intended receiver adopts an under-sampling method based on active aliasing which depends very

sensitively on accurate sampling clock and CSI, the eavesdroppers can hardly intercept the signal. Closed form

expression of symbol error rate (SER) at the intended receiver's end and secrecy capacity in fading wiretap

channel has been derived. Numerical evaluation and simulations are carried out to validate the effectiveness of the

proposed strategy.

关键词: physical layer security, spectrum-sparse signal, secrecy capacity

Abstract: The ubiquity of wireless communication systems has resulted in extensive concern regarding their security issues.

A practical secure transmission scheme based on under-sampling spectrum-sparse signals is designed. Secure

transmission is initialized as the intended receiver transmits a pilot signal for the transmitter, to perform channel

sounding and clock synchronization according to the channel reciprocal principle. Then, sampling clock offset

compensation and precoding method based on channel state information (CSI) can be conducted at the transmitter's

end. Because the intended receiver adopts an under-sampling method based on active aliasing which depends very

sensitively on accurate sampling clock and CSI, the eavesdroppers can hardly intercept the signal. Closed form

expression of symbol error rate (SER) at the intended receiver's end and secrecy capacity in fading wiretap

channel has been derived. Numerical evaluation and simulations are carried out to validate the effectiveness of the

proposed strategy.

Key words: physical layer security, spectrum-sparse signal, secrecy capacity

中图分类号:

TN918

Li Lintao, Liu Yuanan.

Physical layer security enhanced system with

under-sampling spectrum-sparse signals

[J]. The Journal of China Universities of Posts and Telecommunications, 2019, 26(4): 8-16.

参考文献

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