通信学报 ›› 2023, Vol. 44 ›› Issue (10): 13-22.doi: 10.11959/j.issn.1000-436x.2023207

• 专题:电磁空间信号传输设计与智能化处理 • 上一篇    

基于多智能超表面的信道空间内生抗干扰方法

朱勇刚1, 孙艺夫1,2, 姚富强1, 李程1, 郭文龙1, 安康1   

  1. 1 国防科技大学第六十三研究所,江苏 南京 210007
    2 国防科技大学电子科学学院,湖南 长沙 410073
  • 修回日期:2023-10-11 出版日期:2023-10-01 发布日期:2023-10-01
  • 作者简介:朱勇刚(1982− ),男,湖北天门人,博士,国防科技大学第六十三研究所副研究员、硕士生导师,主要研究方向为通信抗干扰、智能超表面和通信信号处理
    孙艺夫(1997− ),男,重庆人,国防科技大学博士生,主要研究方向为通信抗干扰、智能超表面
    姚富强(1957− ),男,安徽枞阳人,博士,中国工程院院士,国防科技大学第六十三研究所研究员、博士生导师,主要研究方向为通信抗干扰
    李程(1985− ),男,湖北武汉人,博士,国防科技大学第六十三研究所助理研究员,主要研究方向为通信抗干扰、信号处理和电磁对抗
    郭文龙(1993− ),男,河南洛阳人,博士,国防科技大学第六十三研究所在站博士后,主要研究方向为电磁超表面及其在低频段无线通信中的应用、新型微波功能材料
    安康(1989− ),男,新疆石河子人,博士,国防科技大学第六十三研究所副研究员、硕士生导师,主要研究方向为通信抗干扰、物理层安全和空天一体化网络
  • 基金资助:
    湖南省研究生科研创新基金资助项目(CX20220008)

Channel-space endogenous anti-jamming method based on multi-reconfigurable intelligent surface

Yonggang ZHU1, Yifu SUN1,2, Fuqiang YAO1, Cheng LI1, Wenlong GUO1, Kang AN1   

  1. 1 The Sixty-third Research Institute, National University of Defense Technology, Nanjing 210007, China
    2 College of Electronic Science and Technology, National University of Defense Technology, Changsha 410073, China
  • Revised:2023-10-11 Online:2023-10-01 Published:2023-10-01
  • Supported by:
    The Graduate Innovation Program of Hunan Province(CX20220008)

摘要:

针对现有基于干扰认知的无线通信抗干扰方法难以有效应对未知干扰和智能干扰的问题,构建了一种基于多智能超表面的动态异构冗余信道抗干扰模型,为利用信道资源抵抗未知干扰提供基础。在此基础上,提出了一种基于多智能超表面优化与选择的信道空间内生抗干扰方法。所提方法由多智能超表面优化和多智能超表面选择两步组成,首先,对发射波束、智能超表面反射系数和接收波束等参数进行解耦,并在交替优化的框架下推导了各参数的最优闭式解;然后,采用贪婪算法选择最优智能超表面用于通信,以获得最佳抗干扰性能;最后,分析了所提方法的收敛性和计算复杂度。理论分析与仿真结果表明,所提方法能够有效抵抗不确定性干扰的影响。

关键词: 通信抗干扰, 内生抗干扰, 信道空间, 多智能超表面

Abstract:

In view of the concern that the traditional anti-jamming method based on jamming recognition is challenging to defend against both the unknown and the intelligent jamming attacks, a dynamic, heterogeneous, and redundant channel-space anti-jamming technique was proposed by adopting multiple reconfigurable intelligent surface (RIS), which facilitated the exploitation of channels’ resources for combating with the unknown jamming attacks.To elaborate, a channel-space endogenous anti-jamming method was proposed by leveraging the optimization of both the RIS’ coefficients and the multiple RIS’ on-off status.Firstly, after decoupling the tightly coupled variables, the optimal closed-form solutions of transmit precoder, RIS’ coefficients, and receive decoder could be derived under the alternative optimization framework.Then, the greedy algorithm was adopted to optimize the multiple RIS’ on-off status for obtaining better anti-jamming communications, and the convergence and the computation complexity of the proposed method was analyzed.Theoretical analysis and simulation results show that the proposed method can effectively defend against the uncertain jamming attacks.

Key words: communication anti-jamming, endogenous anti-jamming, channel-space, multi-reconfigurable intelligent surface

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