A low complexity dynamic resource allocation algorithm for 3GPP LTE Based on a maximal ratio weighted metric with limited feedback

In this paper, a low complexity dynamic resource allocation algorithm is considered for the OFDMA based downlink of 3GPP LTE. A maximal ratio weighted metric based on the normalized channel gains of all users is proposed. The novel low-complexity but sub-optimal allocation algorithm can achieve a near optimal performance when used in combination with this metric. To evaluate the performance of the proposed algorithm and other resource allocation algorithms, a computational complexity analysis is performed and a 1-bit feedback scheme is employed in the performance analysis. Simulated and theoretical results comparing the proposed algorithm and other resource allocation algorithms are presented for LTE.