Just a few years ago, wireless networks were rather the exception in companies. If at all, there were only small WLAN islands, which were not considered conceptually in the planning of the enterprise network. WLAN often meant only one access point in conference rooms. In the current age of smartphones and tablets and the resulting enormous increase in mobile data usage, fast, reliable and consistent WLAN coverage is a must for a company. Multiple connections must be made simultaneously, buildings can be complex, network requirements are constantly changing, and future data rates and standards must be considered.