Review of scenarios and enabling technology directions for 5G wireless communications

An increase in user base of the 4th generation LTE (Long Term Evolution) grid is observed in recent times while 5th generation LTE technology is still undergoing standardization and testing phase. The formation of Ultra-Dense Networks (UDN) of wireless connectivity with mixed cells organization and ambit of not more than 50 meters is expected from the new LTE standard. It is also expected that the new standard shall upsurge the spectral adeptness associated with 4G networks and guarantee data handover speed of more than 10 Gbps. The 5th generation systems specifications are quite unclear from the viewpoint of outlining the grid planning processes. A key task is the scheduling of handovers not only between homogeneous but also heterogeneous networks while guaranteeing Quality of Service (QoS) criteria.