The study of wireless signal propagation characteristics under micro-cellular environment
Yucheng Zhang1, 2, Fangtao Yu2
COMPUTER MODELLING & NEW TECHNOLOGIES 2014 18(12D) 245-249
1 Department of Electronic Information Engineering, Xijing University, Xi’an 710123, China
2 Xi’an Aeroengine Controls Corporation, Aviation Industry Corporation of China, Xi’an 710072, China
A wireless signal automatic tracking model is established aiming at radio wave propagation characteristics of micro-cellular environment, which is based on ray-tracing theory and MATLAB simulation, using the method of radiation source tree. Firstly, reflection and diffraction point set are judged theoretically. Secondly, the wireless signal path tracking algorithm is proposed. In order to validate correctness and rationality of the algorithm, the simulated calculations combined with the urban environment of Ottawa are employed; at the same time, the wave propagation path is given and the optimal combination is chosen. Finally, the simulation and calculation results are analyzed and compared, thus the optimum model are obtained. The results show that the algorithm has higher precision and comparatively accurate forecasting results; what’s more, it has the significant reference value for the propagation prediction of the cellular radio and the construction of the base station.