5G Ultra Dense Cellular Networks
Traditional ultra dense wireless networks are recommended as a complement for cellular networks and are deployed in partial areas, such as hotspot and indoor scenarios. Based on the massive multiple input multi output antennas and the millimeter wave communication technologies, the 5G ultra dense cellular network is proposed to deploy in overall cellular scenarios. Moreover, a distribution network architecture is presented for 5G ultra dense cellular networks. Furthermore, the backhaul network capacity and the backhaul energy efficiency of ultra dense cellular networks are investigated to answer an important question, that is, how much densification can be deployed for 5G ultra dense cellular networks. Simulation results reveal that there exist densification limits for 5G ultra dense cellular networks with backhaul network capacity and backhaul energy efficiency constraints.
IEEE Wireless Communications