On the dependence between base stations deployment and traffic spatial distribution in cellular networks

Base stations (BSs) deployment and traffic spatial distribution play crucial roles in network design and resource management. Actually, the BSs deployment and traffic spatial distribution are dually coupled, since BSs are built up to fulfill the traffic demand while data traffic is transmitted to mobile users through BSs. In this paper, basing on large-scale measurement data, we firstly show that both BSs deployment and traffic spatial distribution better follow an a-Stable distribution. Specifically, we study the statistical relationship between BSs density and traffic spatial density, which exhibits strong linear dependence for each cellular network generation. Furthermore, according to the slope parameter embedded in the linear regression model, we make a bold but reasonable assumption about the real network configuration evolution pattern, which is concretely manifested by the real transition from 2G to 3G and even 4G.