According to research house In-Stat, capital expenditures on macrocells will remain virtually flat from 2011 to 2015, but CAPEX on small cells will grow almost nine-fold, exceeding $31 billion in 2015. Recent In-Stat research indicates that the number of fiber-enabled backhaul macro base stations will approach 1.8 million in 2014. Cable operators can generate revenue by using all of their bandwidth in their HFC architecture. Revenue would be derived from cable TV/data and mobile backhaul.