Cooperative spectrum sensing in IEEE 802.22 standard

IEEE is developing a wireless communication standard that will take place in cognitive radio class and be valid in the world.Data communication capability supporting is aimed with this standard called IEEE 802.22 to the rural area users in TV bands. In the TV bands, not to cause harmful interference to the existing TV receivers and to communicate in unused channels, effective detection of unused channels is needed. This is succeeded with effective spectrum sensing. Understanding of presence of TV signal in channel tracked is more possible with that reason. In this paper, it is demonstrated with detailed simulations that a base station and users in an IEEE 802.22 cell sense TV signals better with setting up cooperation and it is reached to the better performance result with adding time diversity to this cooperation.