基于IRS辅助的SWIPT物联网系统安全波束成形设计

朱政宇; 徐金雷; 孙钢灿; 王宁; 郝万明

doi:10.11959/j.issn.1000-436x.2021060

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基于IRS辅助的SWIPT物联网系统安全波束成形设计

学术论文 | 更新时间：2024-06-05

- 基于IRS辅助的SWIPT物联网系统安全波束成形设计
- Secure beamforming design for IRS-assisted SWIPT Internet of things system
- 通信学报 2021年42卷第4期页码：185-193
- 作者机构：
  
  1. 郑州大学河南先进技术研究院，河南郑州 450001
  2. 郑州大学信息工程学院，河南郑州 450001
  3. 郑州大学河南省智能网络和数据分析国际联合实验室，河南郑州 450001
  4. 郑州大学产业技术研究院，河南郑州 450001
- 作者简介：
  
  [ "朱政宇（1988- ），男，河南周口人，博士，郑州大学讲师，主要研究方向为智能反射面技术、物理层安全技术、无线通信与信号处理等。" ]
  [ "徐金雷（1996- ），男，河南郑州人，郑州大学硕士生，主要研究方向为物理层安全技术与无线携能传输。" ]
  [ "孙钢灿（1977- ），男，河南濮阳人，博士，郑州大学教授，主要研究方向为深度学习、机器学习、无线通信、物理层安全技术等。" ]
  [ "王宁（1982- ），男，河南郑州人，博士，郑州大学教授，主要研究方向为无线资源管理、物理层安全技术、通信信号处理等。" ]
  [ "郝万明（1988- ），男，河南林州人，博士，郑州大学讲师，主要研究方向为毫米波通信、大规模 MIMO 技术、物理层安全技术等。" ]
- 基金信息：
  
  国家自然科学基金资助项目(61801434);国家自然科学基金资助项目(61801435);国家自然科学基金资助项目(61771431);中国博士后科学基金资助项目(2020M682345);河南省科技攻关计划基金资助项目(192102310178);郑州市重大科技创新专项基金资助项目(2019CXZX0037);国家重点研发计划基金资助项目(2019QY0302);国家重点研发计划基金资助项目(2019YFB1803200)
- DOI：10.11959/j.issn.1000-436x.2021060
  中图分类号： TN92
- 网络首发：2021-04，
  
  纸质出版：2021-04-25
- 稿件说明：
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朱政宇, 徐金雷, 孙钢灿, 等. 基于IRS辅助的SWIPT物联网系统安全波束成形设计[J]. 通信学报, 2021,42(4):185-193.

Zhengyu ZHU, Jinlei XU, Gangcan SUN, et al. Secure beamforming design for IRS-assisted SWIPT Internet of things system[J]. Journal on Communications, 2021, 42(4): 185-193.
朱政宇, 徐金雷, 孙钢灿, 等. 基于IRS辅助的SWIPT物联网系统安全波束成形设计[J]. 通信学报, 2021,42(4):185-193. DOI： 10.11959/j.issn.1000-436x.2021060.

Zhengyu ZHU, Jinlei XU, Gangcan SUN, et al. Secure beamforming design for IRS-assisted SWIPT Internet of things system[J]. Journal on Communications, 2021, 42(4): 185-193. DOI： 10.11959/j.issn.1000-436x.2021060.

摘要

为满足绿色万物互联的智能信号处理部署和物理层安全的新要求，针对基于智能反射面辅助的无线携能通信物联网系统中可持续能量供应紧缺问题，提出了一种安全波束成形设计方法。考虑保密速率、发射功率和IRS反射相移约束，以最大化能量采集器采集功率为目标，联合优化基站发射波束成形矩阵和干扰机协方差矩阵以及IRS相移，将优化问题建模为具有二次型约束的非凸二次型规划问题。利用松弛变量、半定松弛法、辅助变量和序列参数凸逼近法将非凸的二次型问题转化为等价的凸问题，并提出一种交替迭代优化算法获取原问题的可行解。仿真结果表明，所提算法能够快速收敛，且与基准方案相比能有效地提升性能。

Abstract

In order to meet the new requirements of intelligent signal processing deployment and physical layer security for green interconnection of things

a design method of secure beamforming was proposed to solve the problem of the shortage of sustainable energy supply in the information and energy transmission at the same time Internet of things (IoT) system assisted by intelligent reflecting surface (IRS).Considering the constraints of secrecy rate

transmit power and IRS reflection phase shift

the optimization problem was modeled as a non-convex quadratic programming problem with quadratic constraints

aiming at maximizing the acquisition power of energy collector

and jointly optimizing the base station transmit beamforming matrix

jammer covariance matrix and IRS phase shift.The non-convex quadratic problem was transformed into an equivalent convex problem by using the relaxation variable

semidefinite relaxation method

auxiliary variable and sequence parameter convex approximation method

and an alternative iterative optimization algorithm was proposed to obtain the feasible solution of the original problem.Simulation results show that the proposed algorithm can converge quickly and improve performance effectively compared with the benchmark scheme.

关键词

Keywords

references

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