摘要
为了最大程度的了解多层异构蜂窝网络混沌通信载波的特性和衰减规律,从而提升分析结果的准确性,提出多层异构蜂窝网络混沌通信载波衰减分析方法。分析获得多层异构蜂窝网络的拓扑结构与混沌通信的流程,融合KlausDostert与ManfredZimmermann理论,得到多径效应,并构建多径模型,运用该模型对混沌通信载波进行分析,得出不同的路径内信号衰减的规律性。在此基础上构建FIR滤波器,采用FIR滤波器将多径衰减和信号延时组合,进而得到映射信号幅值的特性。构建自回归滑动平均模型,通过该模型映射混沌通信载波的衰减特性。仿真结果证明,分析得到了通信载波的特性与衰减规律,拥有良好的信道时变性,能够更有效的对多层异构网络通信起到保密作用。
In order to improve the accuracy of analysis results,this article puts forward a method of analyzing the attenuation of chaotic communication carrier in multi-layer heterogeneous cellular network.The topological structure of multi-layer heterogeneous cellular network and the process of chaotic communication were analyzed.The multi-path effect was obtained by combining Klaus Dostert theory and Manfred Zimmermann theory,and then the multi-path model was constructed.The chaotic communication carrier was analyzed by this model,and the regularity of signal attenuation in different paths was found.On this basis,FIR filter was constructed to combine the multipath attenuation with signal delay,and thus to obtain the characteristics of mapped signal amplitude.Finally,the autoregressive moving average model(ARMA)was constructed to map the attenuation characteristic of carrier in chaotic communication.Simulation results show that the characteristics and attenuation law of communication carrier are obtained by the proposed method,which has good channel time-variation,so this method can play a more effective role in maintaining the secrecy of multi-layer heterogeneous network communication.
作者
张珂
ZHANG Ke(Network Information Center,Shaanxi Normal University,Shaanxi Xi'an 710119,China)
出处
《计算机仿真》
北大核心
2020年第2期203-207,共5页
Computer Simulation
关键词
多层异构蜂窝网络
混沌通信
自回归模型
衰减
Multilayer heterogeneous cellular network
Chaotic communication
Autoregressive model
Attenuation
