(HetNets) coexist, are in service nowadays and considered a main enabling technology for
future networks. In such networks, managing radio resources is challenge. In this letter, we
address the problem of RATs-edge devices (EDs) association and joint power and
bandwidth allocation in multi-RAT multi-homing HetNets. The problem is formulated as
mixed-integer non-linear programming, whose objective is to cost-effectively maximize the …