基于QCSK的持续噪声式隐蔽传输方案

黄英; 万泽含; 雷菁; 赖恪

doi:10.11959/j.issn.1000-436x.2022083

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基于QCSK的持续噪声式隐蔽传输方案

学术论文 | 更新时间：2024-06-05

- 基于QCSK的持续噪声式隐蔽传输方案
- Continuous noise covert transmission scheme based on QCSK
- 通信学报 2022年43卷第4期页码：123-132
- 作者机构：
  
  国防科技大学电子科学学院，湖南长沙 410073
- 作者简介：
  
  [ "黄英（1978- ），女，湖南长沙人，国防科技大学副教授、硕士生导师，主要研究方向为信道编码、编码识别、隐蔽通信、物理层安全等" ]
  [ "万泽含（1998- ），男，陕西西安人，国防科技大学硕士生，主要研究方向为隐蔽通信、物理层安全、无线通信技术等" ]
  [ "雷菁（1968- ），女，陕西西安人，博士，国防科技大学教授、博士生导师，主要研究方向为信息论、LDPC、空时编码、先进多址接入技术、物理层安全、隐蔽通信、无线通信技术等" ]
  [ "赖恪（1994- ），男，福建厦门人，国防科技大学博士生，主要研究方向为先进多址接入技术、信道编码、物理层安全、RACH、随机几何等" ]
- 基金信息：
  
  湖南省自然科学基金资助项目(2021JJ30777)
- DOI：10.11959/j.issn.1000-436x.2022083
  中图分类号： TN918.4
- 网络出版日期：2022-04，
  
  纸质出版日期：2022-04-25
- 稿件说明：
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黄英, 万泽含, 雷菁, 等. 基于QCSK的持续噪声式隐蔽传输方案[J]. 通信学报, 2022,43(4):123-132.

Ying HUANG, Zehan WAN, Jing LEI, et al. Continuous noise covert transmission scheme based on QCSK[J]. Journal on communications, 2022, 43(4): 123-132.
黄英, 万泽含, 雷菁, 等. 基于QCSK的持续噪声式隐蔽传输方案[J]. 通信学报, 2022,43(4):123-132. DOI： 10.11959/j.issn.1000-436x.2022083.

Ying HUANG, Zehan WAN, Jing LEI, et al. Continuous noise covert transmission scheme based on QCSK[J]. Journal on communications, 2022, 43(4): 123-132. DOI： 10.11959/j.issn.1000-436x.2022083.

摘要

针对现有的嵌入式方案要求隐蔽系统的发射功率必须远小于宿主系统，隐蔽传输的可靠性较差的问题，提出了基于QCSK的持续噪声式隐蔽通信方案。发送端将包含隐蔽信息的QCSK信号与人工噪声交替发送，通过保持噪声的持续性有效对抗非法能量检测，同时在时域、频域均具有强隐蔽性。该方案不再要求隐蔽系统发射功率极低，在保证宿主性能的前提下允许增大隐蔽系统的发射功率，提升隐蔽传输的性能。通过对所提方案进行仿真分析，当宿主系统误码率为1×10

-7

时，隐蔽传输误码率较现有方案提升了2个数量级。

Abstract

The existing embedded scheme requires far lower transmission power of the covert system than that of the host system

and thus decreasing the reliability of covert transmission.To figure out the above limitations

a continuous noise covert communication scheme based on quadrature chaos shift keying (QCSK) was proposed.The QCSK signal containing covert information and artificial noise were transmitted alternately

and the illegal energy detection was effectively resisted by the continuity of noise which has strong concealment in both time and frequency domains.Furthermore

extremely low power was not required to meet the demand of convert c

ommunication in QCSK

whereas allowing the increase of transmit power under the condition that the performance of the host system to improve the performance of covert transmission.Theoretical analysis and simulation results show that the bit error rate (BER) of covert transmission brings two orders of magnitude improvement compared with the existing scheme at BER=1×10

-7

for host system.

关键词

Keywords

references

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