  This paper proposes a novel low complexity joint bit and power suboptimal
allocation algorithm for multicarrier systems operating in fading environments.
The algorithm jointly maximizes the throughput and minimizes the transmitted
power, while guaranteeing a target bit error rate (BER) per subcarrier and
meeting a constraint on the total transmit power. Simulation results are
described that illustrate the performance of the proposed scheme and
demonstrate its superiority when compared to the algorithm in [4] with similar
or reduced computational complexity. Furthermore, the results show that the
performance of the proposed suboptimal algorithm approaches that of an optimal
exhaustive search with significantly lower computational complexity.
