Coexistence of a TETRA system with a terrestrial DTV system in white spaces

In this paper, we have investigated the possibility of coexistence of terrestrial truncated radio (TETRA) as a narrow band system with digital television (DTV) in TV white spaces. Based on the system operation mode of a TETRA system, trunked mode operation (TMO) and direct mode operation (DMO), the interoperable power range of fixed and mobile terminals is obtained according to their frequency offsets and power classes.