Analysis of impact of hidden primary receiver on interference modeling in power, contention and hybrid control schemes

Cognitive radio networks has been known to be a technique to enhance the utilization of spectrum, where a secondary user can utilize the spectrum of a primary user without causing harmful interference. This paper we have presents an interference model implementing power, contention and hybrid control management schemes. Furthermore; we have investigated how the hidden primary receiver problem on affects the three schemes. The power and contention control scheme were assessed analytically. However, the hybrid scheme was analyzed numerically. The results presented in this paper show the sensitivity of the power control method to the radius of interference region when compared to the results obtained from the contention and the hybrid control schemes. Finally, we examined the effects of the hidden primary user on the interference.