A Novel JRRM Approach Working Together with DSA in the Heterogeneous Networks

Joint Radio Resource Management (JRRM) and Dynamic Spectrum Allocation (DSA) are both promising approaches in the heterogeneous networks to increase overall QoS and spectrum efficiency, which have already been taken into the framework of heterogeneous radio access networks of E²R. However, not much research has been done about how they could work together properly. In our opinion, JRRM should act according to the spectrum arrangement and planning of DSA among different RATs. This paper gives the load situation a new expression, through which JRRM would be informed of not only the load respected with the RAT considered but also the DSApsilas planning about the spectrum and traffic distribution among RATs. JRRM could act in accordance with DSA. Simulative comparison demonstrates that the JRRM proposed in this paper performs better than the original JRRM when working together with DSA in heterogeneous scenarios.