A resource allocation strategy for SDMA/OFDMA systems

Optimum resource allocation (RA) in space division multiple access (SDMA)/orthogonal frequency division multiple access (OFDMA) systems is a prohibitively complex task for which efficient sub-optimal strategies are preferable. In this work, a new space-frequency/time resource allocation (S-FT RA) is proposed, which divides RA in two tasks: the SDMA grouping, for which a new SDMA grouping algorithm is proposed, and the joint frequency/time RA, which is solved using Munkres' algorithm. It is shown that the proposed strategy is flexible and that it achieves a considerable fraction of the maximum achievable average system capacity.