摘要
电力5G网络中,利用终端直通(D2D)通信技术建立中继链路以可改善电力终端的通信质量,保障电力数据的可靠性传输。基于随机几何理论,定量分析了电力5G网络中中继终端辅助D2D通信系统中基于位置信息的中继选择策略下系统的安全性和可靠性,其安全性和可靠性分别通过保密中断概率和中断概率作为性能指标来衡量。首先,推导直传方式下D2D通信的中断概率和保密中断概率,以提高D2D通信的可靠性为目标提出基于最近位置的中继选择(NLB-RS)策略,并理论推导了D2D链路采用此策略时的中断概率和保密中断概率;然后,针对中继辅助D2D通信的安全性问题,提出了带安全保护区域的最近位置中继选择(NLR-SGR)策略,并定量分析了此策略下系统的安全性和可靠性;最后,通过蒙特卡洛仿真验证了NLB-RS和NLR-SGR策略的有效性。仿真实验结果表明,NLRSGR策略能在不降低系统可靠性的前提下提高系统的安全性。
In the electric power 5G network,the establishment of a relay link with the help of the Device-to-Device(D2D)communication technology can improve the communication quality of the electric power terminal and ensure the reliable transmission of data.Based on the stochastic geometric theory,the security and reliability of the location-based relay selection for relay-assisted D2D communication system in the electric power 5G network were quantitatively analyzed.The security and reliability were measured by the secrecy outage probability and outage probability respectively.First,the outage probability and secrecy outage probability of D2D links in the direct transmission mode were derived.A Nearest Location-Based Relay Selection(NLB-RS)strategy was proposed to improve the reliability of D2D communication,and the outage probability and secrecy outage probability of D2D links with this strategy were obtained.Next,in order to improve the security of the relayassisted D2D communication,a Nearest Location Relay selection with Secure Guard Region(NLR-SGR)strategy was proposed,and the security and reliability of the system under this strategy were quantitatively analyzed.Finally,the effectiveness of NLB-RS and NLR-SGR strategy was verified by Monte Carlo simulation.The results of simulink experiment show that NLR-SGR strategy can improve the system security without reducing the reliability of the system.
作者
李毅超
杨会峰
崔俊彬
李建岐
黄毕尧
LI Yichao;YANG Huifeng;CUI Junbin;LI Jianqi;HUANG Biyao(Information and Communication Branch,State Grid Hebei Electric Power Company Limited,Shijiazhuang Hebei 050021,China;State Grid Smart Grid Research Institute Company Limited,Beijing 102209,China)
出处
《计算机应用》
CSCD
北大核心
2022年第S02期168-174,共7页
journal of Computer Applications
基金
国家电网有限公司2020年科技项目(5204XA20004K)。
关键词
电力5G网络
终端直通通信
基于位置信息的中继选择
中断概率
保密中断概率
electric power 5G network
Device-to-Device(D2D)communication
location-based relay selection
outage probability
secrecy outage probability
