CROSS-LAYER OPTIMIZATION PLANNING PROBLEMS IN WIRELESS NETWORKS
The review provides the state-of-the-art of the cross-layer optimization problems for the Orthogonal Frequency Division Multiplex technology of Long-Term Evolution wireless networks. The notion of cross-layer optimization is considered, the detailed optimization problems and its constraints arising from the radio resources allocation in the downlink are investigated, and the brief discussion of schedulers and its utilization functions are presented.