University of Science and Technology Houari Boumediene
Femtocell networks embedded in the macrocell greatly benefit capacity gain from high SINR and dedicated BS to home subscribers. However, the lack of schemes to effectively control the interference and fully utilize radio resources creates challenges to practically facilitate the additive unlicensed spectrum in femtocells. To tackle these challenges, this paper presents a solution to the interference management scheme and resource allocation strategy for a two-tier macrocell. The authors investigate the cross tier interference caused by the uplink transmission of femtocell users.