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A bit and power allocation algorithm is proposed to maximizing the throughput given the total power and target bit error rate (BER). Because closed form expressions can be derived, the algorithm is of very low complexity, lower than the algorithms proposed by Krongold and Alexander. Furthermore the algorithm can achieve faster throughput than Krongold's and Alexander's algorithms.
In this paper, we study the weighted sum rate (w-rate) maximization algorithms with proportional rate fairness (PRF) and delay constraints for the downlink orthogonal frequency division multiple access (OFDMA) system. First, based on the Lagrangian duality optimization tool, we design a weighted sum rate maximization scheme based on instantaneous transmit power and bit error rate (BER) constraints...
The bit loading algorithms are proposed for orthogonal frequency division multiplexing (OFDM) and linear pre- coded OFDM under power spectral density and mean bit error rate (BER) constraints. These algorithms maximize the bit rate of the system while respecting a mean BER. The advantages of both linear procoded OFDM and classical OFDM are analyzed under different scenarios. It is shown that the proposed...
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