The Wireless Network Infrastructure Ecosystem: 2015 - 2020 - Macrocell RAN, Small Cells, C-RAN, RRH, DAS, Carrier WiFi, Mobile Core, Backhaul & Fronthaul NEW YORK, May 6, 2015 /PRNewswire/ -- The term "Wireless Network Infrastructure" has conventionally been associated with macrocell RAN and mobile core network infrastructure. However, the scope of the term is expanding as wireless carriers increase their investments in Heterogeneous Network or HetNet infrastructure such as small cells, carrier WiFi and DAS nodes, to cope with increasing capacity and coverage requirements.