  In this paper, a novel joint bit and power loading algorithm is proposed for
orthogonal frequency division multiplexing (OFDM) systems operating in fading
environments. The algorithm jointly maximizes the throughput and minimizes the
transmitted power, while guaranteeing a target average bit error rate (BER) 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 [1].
