基于无线能量采集的多跳网络安全传输中的路径选择  

Path selection of multi-hop network secure transmission based on wireless energy harvesting

作　　者：火元莲[1] 徐晓鹏 郑海亮 HUO Yuan-lian;XU Xiao-peng;ZHENG Hai-liang(College of Physics and Electronic Engineering,Northwest Normal University,Lanzhou 730070,China)

机构地区：[1]西北师范大学物理与电子工程学院,甘肃兰州730070

出　　处：《计算机工程与科学》2021年第12期2150-2156,共7页Computer Engineering & Science

基　　金：国家自然科学基金(61561044);西北师范大学研究生培养与课程改革项目。

摘　　要：针对具有无线能量采集技术的多跳传输网络,提出了全双工中继网络在有多个窃听者和多个功率节点场景下进行多跳多路径传输时的路径选择问题。首先,所提系统模型在有多个窃听者和功率节点的场景下进行信息传输,将源发射端和接收端之间的最佳路径作为数据传输路径。然后,为了增强系统性能,中继节点对功率节点发出的射频信号进行能量采集并利用所获能量来进行下一跳的数据传输。最后,推导出了所提路径选择方法在瑞利衰落信道下端到端中断概率的精确表达式,蒙特卡洛仿真和理论分析曲线拟合较好,说明了理论推导的正确性,以及所提方法具有性能上的优越性。Aiming at the multi-hop transmission network with wireless energy harvesting technology,the path selection problem of multi-hop and multi-path transmission in a full-duplex relay network with multiple eavesdroppers and multiple power nodes is proposed.Firstly,the proposed system model performs information transmission in the scenes of multiple eavesdroppers and power nodes,and selects the best path between the source transmitter and receiver as the data transmission path.Secondly,in order to enhance the performance of the system,the relay collect energy from the radio frequency signal sent by the power node and use the obtained energy for data transmission of the next hop.Finally,the accurate expression of the end-to-end outage probability of the proposed method under Rayleigh fading channels is derived.The Monte Carlo simulation fits the theoretical analysis curves well,indicating the correctness of the theoretical derivation and the superiority of the performance of the proposed method.

关 键 词：能量采集 多跳传输 路径选择 中断概率 

分 类 号：TN925.1[电子电信—通信与信息系统]