In this paper, aiming to improve the quality of multimedia transmission while\nsatisfying the quality of service (QoS) requirements, we propose an optimal\nsubcarrier allocation by jointly considering the video coding rate and the\navailable power resource. We jointly analyses the effects on the performance\nof multimedia transmission from video coding rate at the application layer as\nwell as the power control at the physical layer. This proposed joint power and\nsubcarrier allocation algorithm in MIMO OFDM systems enables us both to\novercome the challenge of full CSI (channel state information) with RD (the\nrate-distortion) to make minimum of the distortion of each users under delay\nand power constraints. Simulation results show that the proposed optimal\nsubcarrier allocation algorithm improves the multimedia transmission quality\nconsiderably through the comparison with the resource allocation algorithms\nonly use a single layer of information.
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