How to Meet Increased Capacities by Future Green 5G Networks: A Survey

The mass and widespread adoption of connected mobile devices have brought about enormous social changes with significant economic, cultural, and technological impacts on a society that is becoming increasingly connected. Therefore, energy efficiency in future mobile generations is becoming increasingly significant for cellular network operators. To realize future green networks based on energy efficient architecture that meets the holistic requirements in terms of capacity, this paper presents an overview of the principal driving factors triggered by the next mobile generation, 5G, to fulfill the needed requirements. A detailed discussion of the various advantages and disadvantages of each of these techniques is performed to contribute to understanding how the green radio architecture for future mobile networks can be designed and what challenges may oppose this realization.