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The future broadband wireless cellular systems Evolved UTRAN (E-UTRAN) and WiMAX are receiving a lot of interest in recent years. Both systems deploy Orthogonal Frequency Division Multiplex (OFDM) physical layer consisting of large number of mutually orthogonal sub-carriers. This physical layer provides high robustness against multi-path effects, high flexibility in allocation of the physical resources, high bandwidth scalability and relatively easy combination with Multiple-Input-Multiple-Output (MIMO) transmission and reception. In this paper the authors investigate several algorithms for allocation of the downlink resources for E-UTRAN and WiMAX cellular systems.
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