Abstract
The introduction of the femtocells has a promising solution in reducing the mobile network operational cost (building of macrocell site) and increasing turnover such as revenue. This new technology provides a high quality of service and high data rate at the indoor environment. Thus the primary challenges that face femtocell is Interference which solely depends on the kinds of access point chosen by the users. In this paper we focus on the access control model for accessing femtocell network and we compare closed and open access control mechanism. We also discuss the need for hybrid access control mechanism. We illustrate the scenarios when we increase the number of femtocell users and draw our results for both closed and open access points graphically.