通信学报 ›› 2017, Vol. 38 ›› Issue (1): 89-96.doi: 10.11959/j.issn.1000-436x.2017011

• 学术论文 • 上一篇    下一篇

解码转发协作通信网中能效最优的物理层安全传输机制研究

王东1,2,3,4,李永成1,白铂2,王满喜1   

  1. 1 电子信息系统复杂电磁环境效应国家重点实验室,河南 洛阳 471003
    2 清华大学电子工程系,北京100084
    3 新星技术研究所,安徽 合肥 230031
    4 北京邮电大学网络与交换技术国家重点实验室,北京 100876
  • 修回日期:2016-11-21 出版日期:2017-01-01 发布日期:2017-01-23
  • 作者简介:王东(1980-),男,陕西洛南人,清华大学博士生,主要研究方向为协同通信和信息安全等。|李永成(1978-),男,辽宁沈阳人,电子信息系统复杂电磁环境效应国家重点实验室工程师,主要研究方向为复杂电磁环境效应等。|白铂(1982-),男,陕西西安人,清华大学讲师、硕士生导师,主要研究方向为无线通信、物理层安全、组合优化等。|王满喜(1979-),男,河南驻马店人,电子信息系统复杂电磁环境效应国家重点实验室助理研究员,主要研究方向为无线通信与信道建模、复杂电磁环境效应机理等。
  • 基金资助:
    CEMEE国家重点实验室开放课题基金资助项目(CEMEE2015K0204B)

Research on energy-efficient physical-layer secure transmission mechanism in decode-and-forward cooperative networks

Dong WANG1,2,3,4,Yong-cheng LI1,Bo BAI2,Man-xi WANG1   

  1. 1 State Key Laboratory of Complex Electromagnetic Environmental Effects on Electronics and Information System,Luoyang 471003,China
    2 Department of Electronic Engineering,Tsinghua University,Beijing 100084,China
    3 New Star Research Institute of Applied Technology,Hefei 230031,China
    4 State Key Laboratory of Networking and Switching Technology,Beijing University of Posts and Telecommunications,Beijing 100876,China
  • Revised:2016-11-21 Online:2017-01-01 Published:2017-01-23
  • Supported by:
    The Open Project Foundation of CEMEE State Key Laboratory(CEMEE2015K0204B)

摘要:

针对物理层安全信息传输过程中的功率和能量制约,研究解码转发中继网络中的能量高效利用问题,基于分式规划和DC(difference of convex functions)规划理论,提出一种迭代的发送功率分配算法。该算法在满足节点峰值功率约束和系统最小保密速率要求下,联合进行源和中继的功率分配,实现高能效的物理层安全传输。仿真结果表明,与传统的最大化保密速率相比,该安全能效最大化算法能显著提高系统的能量利用效率。

关键词: 能量效率, 功率分配, 物理层安全, 中继网络

Abstract:

The maximization problem of secure energy efficiency (EE) in decode-and-forward relay networks was investigated considering the power and energy constraints in physical-layer secure transmission.An iterative algorithm for power allocation was proposed based on fractional programming and DC (difference of convex functions) programming.This algorithm jointly allocated power for source and relay nodes to achieve energy-efficient secure transmission,subject to the peak power constraint of each node and the minimum secrecy rate requirement of the system.Simulation results demonstrate that the propose algorithm can improve the secure EE significantly compared with the conventional secrecy rate maximization strategy.

Key words: energy efficiency, power allocation, physical layer security, relay networks

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