Energy efficient microcell deployment for HetNets

Due to growing power consumption and data-rate demand in cellular networks, it is crucial to design the future networks with energy and spectral efficient strategies. Using heterogeneous networks (HetNets) is one possible way of improving energy and spectral efficiency in cellular networks. In this paper, under a coverage constraint, we consider deploying strategies of low power microcells in order to improve the energy and area spectral efficiencies of the conventional macrocell only cellular network. We observe that deploying microcells while keeping the coverage area the same, increases both energy and spectral efficiencies. Finally, we conclude that it is possible to determine a range of inter site distance (ISD) that maximizes the energy efficiency while providing the required traffic demand.