Volume 1 Issue 2
Authors: Chun-Ta Lin; Shang-Hsuan Lee; Yee Ming Chen
Abstract: Femtocell is one of the promising technologies for improving service quality and data rate of indoor users. Even though femtocell can provide improved home coverage and throughput for indoor users, it causes interference to WiMAX macrocell users when femtocell uses the same frequency band of macrocell. To reduce the interference between existing WiMAX and femtocell, it is needed to analyze the characteristic of macrocell and femtocell considering various interference scenarios. In this paper, we develop an analytical model of femtocell resource allocation based on WiMAX femtocell network. Further, it employs genetic algorithm to dynamic channel allocation to maximize signal-to-interference-plus-noise ratio (SIN) in a near-optimal fashion.
Keywords: WiMAX; Femtocell; SINR; Genetic Algorithm; QoS