A simulation framework for capacity analysis in TV white space

The TV white space (TVWS) or equivalently the spatially available unused TV spectrum has drawn much attention recently due to its availability for opportunistic access by unlicensed users in fulfilling the spectrum demands. In this paper, we have evaluated the capacity of secondary (unlicensed) user network meeting the constraint on the aggregated secondary interference power at the TV receiver. Particular importance has been given to the interference modeling to define the protection region around the TV-receiver as per the Federal Communications Committee (FCC) rules. The impact of different system parameters such as power, transmission range, and density of secondary users contending for the same TV channel are also explored in the paper for different channel scenarios.