A Tractable Framework for Power Consumption in Femtocell Networks

Abstract

In this paper, we use stochastic geometry to analyze the transmit power consumption in femtocell network. The femtocell base stations (FAPs) are assumed to follow homogeneous Poisson point process. Firstly, we propose a power adjusting strategy for FAPs according to their relative distance from the macro base station and then quantitatively analyze its mean total power consumed in the femtocell network. In this stage, FAPs are regarded as terminals and evaluate their distance from the macro base station's signal. There're possibilities that the signal strength from the MBS is obstructed such that the FAP can't achieve its distance. In order to combat this issue, neighboring FAPs are used to determine this power-undefined FAP. Thus the femtocell isolated probability should be determined first, which can be solved by Boolean model (which is one branch of Stochastic Geometry). If there are no users in a specific FAP's coverage area, this FAP should turn down or off their transmit power and the probability that the FAP's silent probability is also achieved. All results are tractable mathematically. This paper presents a tractable framework for the power consumption in the femtocell network.