Joint Transmit Rate, Power and Antenna Allocation for MIMO Systems with Multimedia Traffic

SUMMARY This paper proposes an adaptive transmission scheme of MIMO systems to provide different bit error rate and transmission rate for multimedia traffic. The adaptive transmission scheme allocates antennas, rate and power jointly according to the feedback information to satisfy the diverse QoS requirements of the multimedia traffic. Furthermore, an efficient search algorithm with low complexity is proposed for practical implementation. Simulation results show that the proposed scheme improves the spectral efficiency while guarantees the QoS requirements of multimedia traffic. Moreover, the proposed search algorithm achieves close optimal performance with great complexity reduction.