Abstract:In the process of the continuous development of the Internet of things, new and old technologies of wireless network
appear alternately. Network compatibility issues become the core of technology breakthrough. This paper studies on the heterogeneous
wireless network, and optimizes the network with cooperative relay technology. It studies on the heterogeneous wireless network
selection algorithm; puts forward the utility function parameters setting method based on fuzzy inference system, to solve the
problem of function parameters index for different mobile terminals, implementing relay positioning and power allocation from oneway
and two-way relay transmission systems respectively.