Research and optimization on spectrum allocation in two-tier femtocell networks

In this paper, we will from frequency reuse point of view, an improved algorithm of spectrum allocation and spectrum allocation algorithm is proposed based on literature [1], consider the soft frequency reuse (Soft Frequency Reuse, SFR) applied to the spectrum allocation Acer station, assign a different power to the inside region and outside region macro cell, put forward a kind of improved spectrum allocation methods home base station accordingly, under the premise of ensuring the system performance under the macro users, reduce CO channel between macro cell and between macrocell and family interference and increase system capacity.