CAJ | 학술논문

尽管无线通信能够带来有线通信无可比拟的好处，但是无线通信天然的多径时变的特性使其比有线通信更容易受到网络攻击。主要集中于无线网络中的物理层安全问题，提出了一种基于随机频谱扩展的无线通信结构。这种通信结构采用一种新的基于Quorum系统的发送端和接收端连接建立方案，能够保证发送端和接收端在一定的时间内建立连接。同时这种通信结构能够提高数据传递过程中的抗攻击能力，能够提供高速和稳健的数据传递。仿真表明该方案能有效提高无线网络的安全性。
진관무선통신능구대래유선통신무가비의적호처，단시무선통신천연적다경시변적특성사기비유선통신경용역수도망락공격。주요집중우무선망락중적물리층안전문제，제출료일충기우수궤빈보확전적무선통신결구。저충통신결구채용일충신적기우Quorum계통적발송단화접수단련접건립방안，능구보증발송단화접수단재일정적시간내건립련접。동시저충통신결구능구제고수거전체과정중적항공격능력，능구제공고속화은건적수거전체。방진표명해방안능유효제고무선망락적안전성。
Although there is no doubt that using wireless communications offers significant benefits over wired connections,but because of the property of multi-path and time variance,the wireless technology introduces additional vulnerability in terms of network security. This work addresses physical layer security,a topic that has been hardly investigated in the smart grid domain. As a promising solution to physical security,a random spread-spectrum based wireless communication scheme is described. This new scheme adopts a new system based on Quorum to connect the sender and the receiver and guarantee a connection in predefined time. At the same time,this communication structure can improve the data transmission process of anti attack ability and can achieve both fast and robust data transmission. Simulation results verifies the effect of the proposed method.