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Low Complexity Discrete Bit-loading for OFDM Systems with Application in Power Line Communications

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DOI: 10.4236/ijcns.2011.46043    4,623 Downloads   8,380 Views   Citations


Adaptive bit-loading algorithms can improve the performance of OFDM systems significantly. The tradeoff between the performance of the algorithm and its computational complexity is essential for the implementation of loading algorithms. In this paper, we present a low complexity non-iterative discrete bit-loading algorithm to maximize the data rate subject to specified target BER and uniform power allocation. Simulation results show that the proposed algorithm outperforms the equal-BER loading and achieves similar rates to incremental allocation, yet with much lower complexity.

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K. Al-Mawali, A. Sadik and Z. Hussain, "Low Complexity Discrete Bit-loading for OFDM Systems with Application in Power Line Communications," International Journal of Communications, Network and System Sciences, Vol. 4 No. 6, 2011, pp. 372-376. doi: 10.4236/ijcns.2011.46043.


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