Impact of transmitting power on femto cells performance and coverage in heterogeneous wireless networks

We propose a new network model framework, denoted heterogeneous fluid model network, which allows to derive closed formula for the Signal to Interference plus Noise Ratio (SINR) received by a mobile in heterogeneous cellular networks, composed of macro cells and femto cells. Quality of service (QoS) and performance of wireless networks can therefore be analyzed in a simple way. We apply our model to Long Term Evolution (LTE) and indoor/outdoor environment. This model allows to analyze the deployment of a femto cells network when the femto base stations share the same bandwidth as deployed macro cells. We propose an analysis of the impact of transmitting power femto base stations on the performance in terms of coverage, throughput and QoS.