No abstract

Abstract. We study a novel resources allocation approach for femtocells according to the quantity of femtocells and available channels in cognitive heterogeneous network. Due to the co-channel manner in macrocells and femtocells, femtocell base station (FBS) is combined with cognitive radio to obtain available spectrum resources and protect macrocell users (MUEs) from interference of femtocells. Then, the proposed channel allocation approach improves the throughput of femtocells and mitigates the co-tier interference among femtocells. Numerical results verify the conclusions.