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Dynamic Resource Allocation for Downlink Multi-User MIMO-OFDMA/SDMA Systems | IEEE Conference Publication | IEEE Xplore

Dynamic Resource Allocation for Downlink Multi-User MIMO-OFDMA/SDMA Systems


Abstract:

In this paper, new dynamic resource allocation algorithms are presented for the downlink of multi-user MIMO-OFDMA/SDMA systems. Since it is difficult to obtain the optima...Show More

Abstract:

In this paper, new dynamic resource allocation algorithms are presented for the downlink of multi-user MIMO-OFDMA/SDMA systems. Since it is difficult to obtain the optimal solution to the joint optimization problem, the whole procedure is divided into two steps, namely, the subcarrier-user scheduling and the resource allocation. In the first step, a new metric is proposed to measure the spatial compatibility of multiple users each with multiple receive antennas, based on which a new subcarrier-user scheduling algorithm is designed. In the second step, two dynamic resource allocation algorithms are developed to assign radio resources to the scheduled users accordingly. Simulation results demonstrate the superiority of the proposed algorithms in terms of the system throughput.
Date of Conference: 14-18 June 2009
Date Added to IEEE Xplore: 11 August 2009
CD:978-1-4244-3435-0

ISSN Information:

Conference Location: Dresden, Germany

References

References is not available for this document.