Future trends in mobile communications
Future trends in mobile communications
Future mobile networks are assumed to consider new techniques and algorithms to enable even higher bit rates and to ensure full and seamless mobility. Therefore, it should reach higher spectral efficiency by cooperation among cells. It is expected that future mobile networks will be deployed densely and cells will be of low radius, especially in densely populated areas. To maximize advantage of dense deployment of cells, those cells should be interconnected with high speed optical fiber to avoid of bottleneck in the wired part. The future networks incline to the heterogeneity. Terminals should be able to exploit signals from various technologies. Nevertheless, not even very advanced radio transmission techniques will be able to reach user's requirements. Thus, also bandwidth must be enlarged. This supports evolution of aggregated spectrum techniques among fragmented spectrum and cognitive radio approach. To save radio resources, direct communication between users should be ensured by future mobile networks. Another aspect that attracts increasing attention is energy efficiency. The goal of the future mobile networks is to be more environmental friendly and to reduce power consumption. For this purpose, the network must contain entities for intelligent distribution of radio resources to save energy more efficiently.