Smartphones and tablets, of course, couldn't be considered a major mobile traffic driver if users weren't flocking to them in droves.
Cisco estimates there will be 5.2 billion mobile users by 2017, up from the 4.3 billion users in 2012. Also by 2017, there will be more than 10 billion mobile devices being used around the globe, compared to the 7 billion devices that were in circulation last year.
As smartphone and tablet adoption soars, Cisco expects average global mobile network speeds will increase 7-fold from 0.5 Mbps in 2012 to 3.9 Mbps in 2017. What's more, mobile video in five years will represent 66 percent of all global mobile data traffic -- up more than 50 percent since last year.