The HetNet Bible (Small Cells, Carrier WiFi, DAS & C-RAN): 2015 - 2020 Opportunities, Challenges, Strategies, Forecasts

Driven by the thriving ecosystem, we expect small cell, carrier WiFi, C-RAN and DAS networks to account for over 80% of all mobile data traffic by the end of 2020, while overall spending on HetNet Bible infrastructure is expected to reach $40 Billion annually during the same period.  

http://www.marketresearchstore.com/report/the-hetnet-bible-18026