Energy Efficient Design in Heterogeneous Cellular Networks

Energy efficiency has a vital role to mitigate increased power consumption and carbon dioxide emissions. Future wireless communication systems should be designed in such a way that energy efficiency as an important design rule. Heterogeneous Networks (HetNets) have recently being considered as an effective approach to provide better cellular network coverage and capacity. In the proposed system energy efficiency optimization problem is formulated with power and density as constraints for two tier HetNets consisting of micro and macro base stations. Deploying more number of micro base station in an energy efficient manner will further increase the energy efficiency . Greedy algorithm which is based on capacity of each user is used for base station deployment, thereby capacity enhanced energy efficient solution is proposed for HetNets. Index Terms Heterogeneous cellular networks, energy efficiency, power and density optimization, base station deployment, greedy algorithm. ________________________________________________________________________________________________________