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Efficient resource management has been a very appealing issue in the operation of wireless communication system. With the goal of minimizing the total transmit power, we mainly discussed the constant-bit-rate (CBR) case for multiuser MIMO-OFDM system, and developed a novel dynamic subcarrier allocation criteria based on Alamouti scheme with a tradeoff between the complexity of implementation and BER...
In this paper, we propose a new resource allocation scheme for MIMO-OFDMA systems with a priority user. With the goal of minimizing the total transmission power and exploiting spatial diversity and multiuser diversity efficiently, the proposed algorithm firstly allocates the subcarrier to the priority user, and it selects the N relatively largest eigenvalues of all subcarriers and allocates the best...
The adaptive antenna-array based OFDM system always uses beamforming to choose the channel with largest Eigenvalue to transmit the OFDM block symbol. Such selection diversity is a simple way. However, it does not make full use of the capacity antenna-array promise. With the goal of maximizing the system throughput with a limited power for the target BER, a novel dynamic subcarrier and power allocation...
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