Femtocell/Macrocell Interference Analysis for Mobile WiMAX System

Abstract

Femtocell can provide better indoor coverage and capacity of cellular systems. In order to operate femtocell appropriately, RF interference analysis between femtocells and macrocells is needed. In this paper, we discussed the impact of interference by the introduction of femtocell in Mobile WiMAX system. Performance degradation was evaluated for the downlink case by system level simulation. Simulation results shows that the impact of interference from macrocell to femtocell is more severe than from femtocell to macrocell. By allocating different frequency bands for femtocell and macrocell, performance degradation can be negligible.