电子学报 ›› 2021, Vol. 49 ›› Issue (7): 1354-1362.DOI: 10.12263/DZXB.20201101

• 学术论文 • 上一篇    下一篇

非理想硬件条件下协作NOMA系统安全中断性能研究

李美玲1, 陈琴1, 杨晓霞1, 王安红1, 董增寿1, Muhaidat Sami2   

  1. 1.太原科技大学电子信息工程学院, 山西 太原 030024
    2.Khalifa大学,阿联酋阿布扎比 127788
  • 收稿日期:2020-10-08 修回日期:2021-01-10 出版日期:2021-07-25
    • 通讯作者:
    • 陈 琴
    • 作者简介:
    • 李美玲 女,1982年生于山西宁武.2012年毕业于北京邮电大学获博士学位.现为太原科技大学教授.主要研究方向为认知无线电、协作通信、NOMA和物理层安全技术.E‑mail: meiling_li@126.com
      陈 琴(通信作者) 女,1994年生于安徽池州.现为太原科技大学电子信息工程学院硕士研究生,主要研究方向为基于非正交多址接入系统的物理层安全性能. E‑mail: 773574827@qq.com
      杨晓霞 女,1995年生于山西阳曲.现为太原科技大学电子信息工程学院硕士研究生,主要研究方向为无线网络的物理层安全性能. E‑mail: 2509085887@qq.com
      王安红 女,1972年生于山西闻喜.2009年毕业于北京交通大学获博士学位.现为太原科技大学教授.主要研究方向为图像视频编码与传输、压缩感知、秘密图像共享. E‑mail: ahwang@tyust.edu.cn
      董增寿 男,1970年生于山西寿阳. 2009年毕业于太原科技大学获博士学位.现为太原科技大学教授.主要研究方向为故障诊断、图像处理与模式识别、专网通信技术等. E‑mail: dongzs@tyust.edu.cn
      Sami Muhaidat 男,Khalifa大学教授.主要研究方向为无线通信关键技术、物理层安全、物联网技术等. E‑mail: muhaidat@ieee.org
    • 基金资助:
    • 国家自然科学基金 (62001320); 山西省重点研发计划项目 (201903D121117); 山西省高等学校科技创新项目 (201802090); 山西省回国留学人员科研资助项目 (2020?126); 山西省研究生教育创新项目 (2020SY419)

Research on Secrecy Outage Performance of Cooperative NOMA System with Residual Hardware Impairment

LI Mei‑ling1, CHEN Qin1, YANG Xiao‑xia1, WANG An‑hong1, DONG Zeng‑shou1, Sami Muhaidat2   

  1. 1.School of Electronic and Information Engineering, Taiyuan University of Science and Technology, Taiyuan, Shanxi 030024, China
    2.University of Khalifa, Abu Dhabi 127788, The United Arab Emirates
  • Received:2020-10-08 Revised:2021-01-10 Online:2021-07-25 Published:2021-08-11
    • Corresponding author:
    • CHEN Qin
    • Supported by:
    • National Natural Science Foundation of China (62001320); Key Research and Development Project of Shanxi Province (201903D121117); Science and Technology Innovation Program of Colleges and Universities in Shanxi Province (201802090); Research Funding Project for Returned Overseas Students in Shanxi Province (2020?126); Graduate Education Innovation Project of Shanxi Province (2020SY419)

摘要:

实际收发设备的非理想硬件(RHI, Residual Hardware Impairment)特性会对协作非正交多址接入(NOMA, Non?Orthogonal Multiple Access)系统性能产生重要影响.因此,本文提出了基于RHI的下行链路单窃听多中继协作NOMA系统模型,推导了联合考虑合法链路和窃听链路使目标信噪比最大化(M?LaE?SNR, Maximized SNR for Legitimate and Eavesdropping link)中继传输方案下的安全中断概率闭合表达式和渐近表达式.分析和仿真结果表明,所提M?LaE?SNR方案相比其他方案可有效提高用户的安全中断性能,且中继数越多所提方案性能优势越明显;同时RHI使得系统安全传输性能降低,且RHI对性能的影响程度主要与主链路信噪比以及协作中继个数有关;且不同节点处的RHI对系统安全性能造成的影响程度不同.研究结果还证明了用户的安全分集阶数等于中继数量K.

关键词: 非正交多址接入, 物理层安全, 非理想硬件, 中继选择方案, 安全中断概率, 安全分集阶数

Abstract:

Residual hardware impairment (RHI) characteristics exist in actual transceiver which will have an important impact on the cooperative non?orthogonal multiple access (NOMA) system performance. In this paper, downlink single eavesdropper and multi relay cooperative non?orthogonal multiple access system with RHI is proposed, and the closed expression and asymptotic expression of secrecy outage probability performance is derived under the relay transmission scheme by maximizing SNR for joint legitimate and eavesdropping link(M?LaE?SNR);The analytical and simulation results show that the secrecy outage performance of RHI?D?E?MR?NOMA system using M?LaE?SNR scheme is better than the other schemes, and the more the number of relays, and the performance advantage of the proposed scheme is more obvious with more relay numbers; Meanwhile, RHI can reduce the secrecy transmission performance of the system, and the influence of RHI on the performance is mainly related to the signal?to?noise ratio (SNR) of the main link and the number of cooperative relays; And RHI at different nodes have different influences on system secure performance. It is also proved that the order of user’s secrecy diversity order is equal to the number of relays K.

Key words: non?orthogonal multiple access, physical layer security, residual hardware impairment, relay selection scheme, secrecy outage probability, secrecy diversity order

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