通信学报 ›› 2017, Vol. 38 ›› Issue (10): 71-80.doi: 10.11959/j.issn.1000-436x.2017199

• 学术论文 • 上一篇    下一篇

基于多窃听协作的最佳中继安全可靠性能研究

李美玲1,董增寿1(),王钢飞1,路兆铭2,3   

  1. 1 太原科技大学电子信息工程学院,山西 太原 030024
    2 北京邮电大学信息与通信工程学院,北京 100876
    3 北京市网络与体系架构重点实验室,北京 100876
  • 修回日期:2017-08-07 出版日期:2017-10-01 发布日期:2017-11-16
  • 作者简介:李美玲(1982-),女,山西宁武人,太原科技大学副教授,主要研究方向为无线通信关键技术、认知无线网络、协作通信。|董增寿(1979-),男,山西寿阳人,博士,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。|王钢飞(1981-),男,山西清徐人,太原科技大学助教,主要研究方向为信道估计、协作频谱感知。|路兆铭(1986-),男,河南安阳人,博士,北京邮电大学讲师,主要研究方向为软件定义无线网络、能源互联网等。
  • 基金资助:
    国家自然科学基金资助项目(41272374);国家自然科学基金资助项目(61672373);山西省青年科技研究基金资助项目(2014021021-2);山西省晋城科技攻关基金资助项目(201501004-4);太原科技大学博士科研基金资助项目(20152023)

Security versus reliability analysis for multi-eavesdropper cooperation wireless networks with best relay

Mei-ling LI1,Zeng-shou DONG1(),Gang-fei WANG1,Zhao-ming LU2,3   

  1. 1 School of Electronic and Information Engineering,Taiyuan University of Science and Technology,Taiyuan 030024,China
    2 School of Information and Communication Engineering,Beijing University of Posts and Telecommunications,Beijing 100876,China
    3 Beijing Key Laboratory of Network System Architecture and Convergence,Beijing 100876,China
  • Revised:2017-08-07 Online:2017-10-01 Published:2017-11-16
  • Supported by:
    The National Natural Science Foundation of China(41272374);The National Natural Science Foundation of China(61672373);The Young Science and Technology Research Fund of Shanxi Province(2014021021-2);Jincheng Technology Research Projects of Shanxi Province(201501004-4);Research Project of Taiyuan University of Science and Technology(20152023)

摘要:

物理层安全技术可以有效地对抗窃听行为,提高主链路传输的可靠性。考虑存在多个窃听攻击的无线中继网络,且信源到目的端的直传链路始终存在,中继节点和窃听节点在转发数据时均采用解码转发方式,提出了基于多窃听协作的最佳中继选择方案;推导了非中继传输系统和最佳中继传输系统的中断概率和截获概率表达式;分析了不同的中继选择方案对安全可靠性能的影响。仿真结果表明,不同的中继选择方案将直接影响到目的节点可获得的信道容量及系统中断概率;所提方案可以实现更低的系统中断概率;系统中断概率和截获概率均随着中继数的增加而降低,随着窃听节点数的增加,截获概率有所提高,但是当中继数大于窃听节点数时,可以有效抑制截获概率,保证主链路安全传输。

关键词: 物理层安全, 多窃听协作, 中断概率, 截获概率

Abstract:

Physical-layer security could be used to effectively combat eavesdroppers and the transmission reliability of the main link could be improved.A wireless relay network with multiple both decode and forward eavesdroppers and relays were considered,in the presence of the link from source to destination.A best relay selection scheme based on multieavesdropper’s cooperation was proposed,and the outage probability and the intercept probability was deduced under both schemes without relay and with best relay.Then,the security and reliability influenced by different relay selection schemes were analyzed.The simulation results show that the achievable channel capacity at the destination node and the system outage probability are directly affected by different relay selection scheme.Lower system outage probability can be achieved by the proposed scheme,and the system outage probability and intercept probability are both decreased with the increase of the number of relays.The intercept probability increases with the increase of the number of eavesdroppers,which,however,can be reduced by increasing the number of relays to ensure the main link’s reliable transmission.

Key words: physical-layer security, multi-eavesdropper cooperation, outage probability, intercept probability

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