摘要
在信息化战场中,军事通信领域越来越重视对军用移动通信系统的应用。为提高军用移动通信系统的安全性能,研究了双向协作中继网络的物理层安全传输问题。以最大化系统安全速率为目标,提出了一种基于标准粒子群优化算法的中继选择及功率分配联合优化方法用于对抗窃听者,通过仿真将所提算法与等功率分配和最优中继选择算法、最优功率分配和随机中继选择算法、等功率分配和随机中继选择算法进行了比较。仿真结果表明,所提算法优于其他3种算法,提高了系统的安全速率,有效地抵抗了窃听者的窃听,从而显著提升了系统的安全性能。
In the information battlefield,more and more attention is attached to the application of the military mobile communication system in the field of military communication.In order to improve the secrecy performance of military mobile communication system,the physical layer security transmission of two-way cooperative relay systems is investigated.A joint relay selection and power allocation scheme based on the standard particle swarm optimization is proposed to maximize the system secrecy rate against the eavesdropper.The proposed scheme is compared with equal power allocation with optimal relay selection scheme,optimal power allocation with random relay selection scheme and equal power allocation with random relay selection scheme through simulation.The simulated results show that the proposed scheme outperforms the other schemes.It can be used to improve the system secrecy rate,effectively resist the eavesdroppers,and significantly improve the system secrecy performance.
作者
潘蕾
李赞
李向阳
张峰干
PAN Lei;LI Zan;LI Xiangyang;ZHANG Fenggan(State Key Laboratory of ISN,Xidian University,Xi an 710071,Shaanxi,China;Rocket Force University of Engineering,Xi an 710025,Shaanxi,China)
出处
《兵工学报》
EI
CAS
CSCD
北大核心
2020年第1期102-107,共6页
Acta Armamentarii
基金
国家自然科学基金项目(61601474)
关键词
双向协作中继网格
物理层安全
中继选择
功率分配
安全速率
粒子群优化
two-way cooperative relay network
physical layer security
relay selection
power allocation
secrecy rate
particle swarm optimization
