Temporary cognitive small cell networks for rapid and emergency deployments

This chapter introduces the concept of temporary cognitive small cell networks (TCSCN) as a supplement infrastructure to LTE-Advanced macro networks, and examines how the cognitive capabilities can enable the rapid and temporary nature of such deployments. Temporary networks are suitable for disaster-recovery scenarios where the nominal macro network is severely affected or completely paralyzed. In addition to that, such temporary networks can address the sudden increase in wireless traffic in certain geographic areas due to public events. The approach in realizing the cognitive capabilities is achieved by exploiting the latest LTE-Advanced HetNet features, as well as by presenting novel techniques for intelligently mitigating interference between the macro network base stations and the introduced temporary infrastructure. Simulation results are presented in order to show the enhancement of the wireless service when such femporary networks are deployed together with the proposed cognitive capabilities. At the end of this chapter an overview will be provided about open research directions that are fundamental for further possible realization of temporary cognitive smail cell networks.