一种无线移动信道建模与仿真改进方法

An Improved Method for Mobile Radio Channels Modeling and Simulating

分析了现在广泛使用的无线移动信道Jakes仿真器和其改进型的缺陷及造成该缺陷的原因,给出了一种新的仿真模型,该仿真模型通过在各条路径到达角及初始相位上都引入一个随机相移,可以克服Jakes仿真器的缺陷,其一阶和二阶统计特性与C larke参考模型基本相符,优于Jakes仿真器,并且可以直接推广到频率选择性信道的建模与仿真。

In this paper, it analyzed the defaults of Jakes＇ and its＇ improved simulator for mobile radio channels, and gives a new improved sum-of-sinusoids simulation model. The new model employs random initial phase, and conditional random Doppler frequency for all individual sinusoids. The second order of the new simulator match the Clarke＇ reference model exactly. Moreover, the new simulator can be directly used to generate multiple uncorrelated fading channels; Finally a MATLAB based Monte Carlo simulation example is presented.