Growth will be particularly high in Japan, Korea (Rep. of) and the United States (which are the world leaders in terms of LTE take-up and data usage), but also in some European markets (as LTE gains traction). Incumbent and alternative fixed operators in developed markets also have been investing in fibre networks to create ultra-fast broadband networks capable of speeds of up to 1 gigabit per second (Gbit/s). Capital expenditures on fibre infrastructure (expressed as "fibre to the x" or "FTTx," with x standing for "home" or "premises") are expected to total USD 144.2 billion between 2014 and 2019.