2021 Volume 10 Issue 8 Pages 544-551
In this letter, we propose and evaluate a new area-based primary protection method for dynamic spectrum access, in which a secondary system uses a frequency band assigned to a primary system while it keeps an aggregate interference below an acceptable level of the primary system. We consider that a location information of a primary system’s reception station (PRS) whose antenna boresight faces towards a moving primary transmission station is ambiguous. To accurately calculate the aggregate interferences from the secondary system to the PRS in such a situation, the proposed method predicts a range of the PRS’s antenna rotation. Our simulation results show that the proposed method can increase availability of the secondary system significantly in a practical urban scenario.