OPTIMIZATION MODEL OF WAVE PROPAGATION IN COMPLEX ENVIRONMENTS

The accurate prediction for wave propagation field is very important in wireless communication, which can improve the quality in the wireless communication. However, the field prediction in complex environments is a not easy problem. In order to improve the accuracy of field prediction, many methods are presented. The optimization of the semi-experimental model is one method for improving field predictions. The semiexperiment wave prediction model is established by using a great deal experiment data. For the optimization of propagation model, the parameters in the model are determined according the practical propagation path.The optimization of propagation model in complex environment is not satisfactory now. In this paper, an improved optimation method is presented for wave propagation model in the complex environments. The main idea in the method is to divide the propagation path into multiple sections and each section has the similar propagation characteristics. In the optimization, in order to regularize the experimental data an interpolation method is used to the experimental data, which can improve the prediction accuracy. The simulation is performed and the simulation results show that the presented method can reduce the prediction error significantly