Journal of Computer Applications ›› 2018, Vol. 38 ›› Issue (10): 2908-2912.DOI: 10.11772/j.issn.1001-9081.2018030665

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Secure performance analysis based on opportunity relaying transmission scheme

ZHANG Yongjian1,2, HE Yucheng1,2, ZHOU Lin1,2   

  1. 1. School of Information Science and Engineering, Huaqiao University, Xiamen Fujian 361021, China;
    2. Xiamen Key Laboratory of Mobile Multimedia Communications, Huaqiao University, Xiamen Fujian 361021, China
  • Received:2018-04-02 Revised:2018-05-22 Online:2018-10-10 Published:2018-10-13
  • Supported by:
    This work is partially supported by the Natural Science Foundation of Fujian Province (2018J01096), the Open Funded of Chongqing/MII Key Laboratory of Computer Networks & Communications Technology (CY-CNCL-2017-05).


张勇建1,2, 贺玉成1,2, 周林1,2   

  1. 1. 华侨大学 信息科学与工程学院, 福建 厦门 361021;
    2. 华侨大学 厦门市移动多媒体通信重点实验室, 福建 厦门 361021
  • 通讯作者: 贺玉成
  • 作者简介:张勇建(1991-),男,福建福州人,硕士研究生,主要研究方向:无线通信、物理层安全;贺玉成(1964-),男,山西太原人,教授,博士,主要研究方向:无线通信、信道编码;周林(1982-),男,河阳南阳人,副教授,博士,主要研究方向:无线通信、信道编码。
  • 基金资助:

Abstract: To solve the problem of information being intercepted by illegal users during wireless communication, a secure transmission strategy based on optimal relay selection was proposed. Firstly, the pre-designed artificial noise and useful information were integrated at the source node, and the best relay selection algorithm was used to select the best relay to forward the received information. Secondly, the secrecy capacity, outage probability and interpret probability of the system were derived. Finally, the optimal number of relays were determined by the comprehensive performance of security and reliability. Theoretical analysis and experimental simulation results show that compared with the traditional system model without artificial noise, the performance of the proposed system can be significantly improved by adding relay nodes.

Key words: wireless communication, artificial noise, intercept probability, outage probability, opportunistic relay selection

摘要: 针对无线通信过程中信息被非法用户窃听的问题,提出一种基于最佳中继选择的安全传输策略。首先,在源节点处整合了预先设计的人工噪声与有用信息,通过最佳中继选择算法选择最佳中继对接收到的信息进行转发;其次,推导出系统的安全容量、中断概率以及拦截概率;最后,利用安全性与可靠性折中的性能来确定最佳的中继个数。理论分析和实验仿真结果表明,与传统没有加入人工噪声的系统模型相比,该系统的性能提升可以明显通过增加中继节点来实现。

关键词: 无线通信, 人工噪声, 拦截概率, 中断概率, 机会中继选择

CLC Number: