两种瑞利衰落信道模型的研究

信道建模和仿真是研究移动无线通信中各种技术和网络规划的基础和关键.在给出的移动无线信道建模的数学参考模型基础上,分析了传统Jakes模型中存在的不足.后人因此提出了两种改进型的模型:Pop模型和Zheng模型.将两种改进型模型进行了理论上的对比,区分两者是如何分别引入随机相位来改善原有模型的,还对两种模型进行了MATLAB仿真研究,对比两种模型的性能.研究表明两种模型都能通过随机相位的引入解决Jakes模型中的稳定性问题,但是Zheng模型的性能更好且更容易实现.Zheng模型对于瑞利衰落信道的建模具有更大的价值.

Research of two kinds of Rayleigh fading channel model

The modeling and simulating of the channel is the basis and key to research the various techniques and internet planning in mobile radio communications.On the basis of the mathematical reference model,analyzing the deficiency of Jakes' model.The descendants mentioned two kinds of modified model,this is Pop's model and Zheng's model,respectively.The theory comparison has carried out concerning these two models to tell how these two models improve their performance by introducing the random phase.What's more,the simulation of those two models with matlab has done to make a contrast of their performance.Research shows that they both can solve the stationary problems,but Zheng model has a better performance.In conclusion,Zheng model is of much more value for the modeling of Rayleigh fading channel.