Coexistence issues for IEEE 802.22 WRAN and DVB-T2 networks

Cognitive Radio systems have been studied to be deployed especially in the so-called TV White Spaces (TVWS) which are defined as the TV free channels left unused in specific territorial area as direct consequence of the digital switchover plans. The IEEE 802.22 Wireless Regional Area Network (WRAN) standard has been developed to exploit the TVWS bands to assure broadband access for remote and rural areas. WRAN devices are designed to operate in the frequency range 54-862MHz alongside Digital Terrestrial Television (DTT) transmissions. This paper studies the influence of adjacent channel interference of DTT signals on IEEE 802.22 WRAN transmission. The performance of IEEE 802.22 WRAN devices in the presence of with DVB-T2 broadcasting systems is evaluated.