摘要
噪声聚合物理层安全方案通过编码设计,结合反馈控制可以充分地挖掘无线链路中引入的固有噪声资源,恶化窃听者的信道质量,增强通信系统的安全性能。为了在实际系统中验证与评估该方案的性能,基于软件无线电平台设计并实现了融合噪声聚合抗窃听功能的发射机、接收机方案;在此基础上,搭建了包含源节点、目的节点与窃听节点的抗窃听测试环境。以图像传输业务为测试案例,对误帧率、峰值信噪比等客观指标以及图像主观效果进行了评估。测试结果表明,合法接收端相比于窃听端在同一误帧率条件下可获得良好的信噪比增益;在同一信噪比条件下具有高峰值信噪比且清晰可辨的接收图像,验证了噪声聚合方案的有效性。
With feedback control method,the physical layer security scheme via noise aggregation can degrade the eavesdropper’s channel quality and enhance the security performance of communication system by fully extracting the resources of inherent noise in wireless communication.In order to validate and evaluate the performance of the scheme,this paper designed and realized a practical scheme for transmitter and receiver with anti-wiretapping functions based on software defined radio platform.On basis of that,this paper established the anti-wiretapping test environment,which includes a source node,a destination node and an eavesdropper node.Taking the test case of image transmission,this paper evaluated some objective indicators,such as frame error,peak signal noise rate and the subjective quality of images.Test results show that there is satisfied SNR gain between Bob and Eve for the same frame error rate.Moreover,clear and recognized received images with higher peak signal noise rate prove the effectiveness of the noise aggregation scheme.
作者
秦鹏翔
任品毅
杜清河
孙黎
Qin Pengxiang;Ren Pinyi;Du Qinghe;Sun Li(School of Electronics&Information Engineering,Xi’an Jiaotong University,Xi’an 710049,China;Shaanxi Intelligent Network&Ubiquitous Interconnection Engineering Technology Research Center,Xi’an 710049,China)
出处
《计算机应用研究》
CSCD
北大核心
2020年第2期526-529,550,共5页
Application Research of Computers
基金
陕西省重点研发计划资助项目(2017ZDXM-GY-012)
国家自然科学基金资助项目(61431011).
关键词
软件无线电
无线物理层安全
噪声聚合
图像传输
software defined radio
wireless physical layer security
noise aggregation
image transmission
作者简介
秦鹏翔(1994-),男,陕西兴平人,硕士,主要研究方向为软件无线电、无线物理层安全(qinpengxiang@stu.xjtu.edu.cn);任品毅(1971-),男,湖南长沙人,教授,博导,主要研究方向为认知无线电网络、MIMO系统、无线通信中的博弈论、无线中继、路由、物理层安全;杜清河(1979-),男,陕西西安人,教授,博导,主要研究方向为无线移动通信与网络中的跨层设计、5G网络、移动多播、认知无线电网络、物理层安全;孙黎(1983-),男,陕西西安人,副教授,博导,主要研究方向为无线移动通信与网络中的中继、物理层安全、5G网络.
