Modeling of Spatially Cross-Correlated Shadow Fading in Distributed Radio Access Networks

Spatial cross-correlation is an important feature in distributed radio access networks (D-RAN) and has strong impacts on their performance. In this paper, a two-step method of modeling the spatially correlated shadowing is proposed. At the first step, the coefficients of the shadow-fading (SF) expression are calculated by exploiting the statistical characteristics of spatial cross-correlation, and then at the second step, the value of individual shadow fading is worked out with the coefficients. Simulations demonstrates that the novel model of spatially correlated shadow fading is reasonable and of great importance to verify signal processing techniques in D-RAN.