Low Complexity Discrete Bit-loading for OFDM Systems with Application in Power Line Communications
Khalifa S. Al-Mawali, Amin Z. Sadik, Zahir M. Hussain
DOI: 10.4236/ijcns.2011.46043   PDF    HTML     5,144 Downloads   9,249 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.

Conflicts of Interest

The authors declare no conflicts of interest.


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