电信科学 ›› 2015, Vol. 31 ›› Issue (2): 69-74.doi: 10.11959/j.issn.1000-0801.2015041

• 研究与开发 • 上一篇    下一篇

网络编码系统中基于天线选择的安全传输技术研究

邓单1,赵明2,简贵胄3   

  1. 1 广州番禹职业技术学院信息工程学院 广州 511483
    2 中国科学技术大学信息科学技术学院 合肥 230027
    3 北京微电子技术研究院 北京 100076
  • 出版日期:2015-02-20 发布日期:2017-03-18
  • 基金资助:
    国家自然科学基金资助项目;国家高技术研究发展计划(“863”计划)基金资助项目

Secure Transmission Based on Antenna Selection for Network Coding System

Dan Deng1,Ming Zhao2,Guizhou Jian3   

  1. 1 School of Information Engineering, Guangzhou Panyu Polytechnic, Guangzhou 511483, China
    2 School of Information Science and Technology, University of Science and Technology of China, Hefei 230027, China
    3 Beijing Microelectronic Technology Research Institute, Beijing 100076, China
  • Online:2015-02-20 Published:2017-03-18
  • Supported by:
    The National Natural Science Foundation of China;National High Technology Research and Development Program of China(863 Program)

摘要:

摘要:为提高模拟网络编码系统的安全传输容量,提出一种基于天线选择物理层安全传输方案;研究在准静态慢衰落信道条件下,源结节与中继结点的天线选择策略及其性能分析。该方案分别以最大信道容量和最大信道增益为目标,在最优选择准则基础上,提出简化的天线选择方法。数值仿真表明:联合主信道容量最大化(CMCCM)准则具有最优的性能曲线,但其运算复杂度也最大。相比于固定选择策略,CMCCM方案提供系统增益约5 dB。特别地,简化的独立信道增益最大化(ICGM)方案与CMCCM方案表现出接近的性能曲线。

关键词: 天线选择, 物理层安全, 模拟网络编码, 安全容量

Abstract:

In order to improve the secrecy capacity of analog network coding system, antenna selection based transmission scheme was investigated. The selection criteria for the source nodes and relay nodes were proposed over a slowly varying channel. The optimal selection criterion for maximum secrecy capacity and the suboptimal selection criterion for maximum channel gain ware investigated. Simulation results show that the selection scheme of combined main channel capacity maximum(CMCCM)outperforms other schemes with the most computation burden. Compared with the fixed selection, the proposed scheme shows about 5 dB gain in ergodic secrecy capacity. Specifically, the independent channel gain maximum(ICGM)scheme holds the similar performance compared with CMCCM scheme, while ICGM scheme can release the computation burden.

Key words: antenna selection, physical-layer security, analog network coding, secrecy capacity

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