Effective placement of femtocell base stations in commercial buildings

This paper proposes a novel femtocell base stations placement scheme for effective indoor wireless coverage in commercial environments. The objectives are to place the minimum number of femtocell base stations while maximizing the covered area with the signal to interference plus noise ratio larger than the predefined threshold. This scheme consists of several algorithms that first partition the whole environment into subregions, place femtocell base stations into these subregions and adjust their positions one by one in a greedy way, until the coverage requirement can be satisfied. The subregion partition might be refined to create smaller subregions, if the coverage requirement cannot be met. Simulation results show that our proposed placement scheme is better than the existing ones because of taking interference mitigation into consideration.