The Establishment And Simulation Research Of Wireless Fading Channel

Wireless communication channel is an important part of wireless communication. It has been widely researched in this field. As a typical kind of time-varying channel, there are great values in both theory and practice to study and simulate its characteristics of propagation.In this paper, a certain fading channel model based on the sum of sinusiods is designed and an existed Rayleigh fading model is optimized based on the theory of transmission of radio wave. Firstly, the important characteristics and fading reasons of wireless channel are discussed. As a result, a mathematic model is established. Then the implementation of software of this model is described and the relative results are given. At last, the existed model is optimized and the test results are acquired. The result shows that both of the two fading channel can real-time simulate the main characteristics of the realized wireless communicate channel restricted to narrowband. The Rayleigh fading model which is produced in this paper is more flexible and can be widely used. And a deeper study in wireless channel will contribute to reduce the effect of channel fading on communication system and enhance the quality of communication.