A New Approach of Spectrum-dependent Compatibility Analysis between Radio Stations Based on Spatial Interpolation

Abstract

With the process of social informationization, the demand for various types of wireless services has grown rapidly. The number and type of the spectrum-dependent stations and equipments, which have been put into use, is ever increasing. The phenomenon of self-interference and mutual interference has become more and more severe. This paper proposed a new approach of spectrum-dependent compatibility analysis between radio stations based on spatial interpolation. Firstly, electromagnetic environment perception data is obtained from multiple sensors. Then, the actual interference power of each interest point in a certain region is obtained by spatial interpolation fusion. Finally, the spectrum-dependent compatibility of radio stations is determined by comparing the actual interference power and the allowable interference power. Unlike the extrapolation approach based on the calculation of radio wave propagation loss, the proposed approach in the paper avoids the estimated deviation caused by the selection mismatch of the model selection of radio wave propagation loss and the unreasonable model parameter setting, and does not need to know the number of transmitters and their positions in advance. It provides a new technological approach for spectrum-dependent compatibility analysis between radio stations.