The term TV White Spaces usually refers to unoccupied portions of spectrum in the VHF/UHF terrestrial television broadcasting frequency bands. In some countries, trials and tests are under way to improve the utilization of this highly valued spectrum resource by implementing sharing between the primary television service and other services. Broadband wireless applications are the main focus of sharing trials, but sharing is also being considered for other applications, such as machine-to-machine communications (M2M). The common pattern involved with all these alternative wireless applications is their low-power nature, which makes them well-suited for operation under a licence-exempt regulatory framework.