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Low Complexity Precoded Greedy Power Allocation Algorithms for OFDM Communication Systems

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DOI: 10.4236/jsip.2012.32025    3,733 Downloads   6,196 Views   Citations

ABSTRACT

In this paper, an enhanced greedy bit and power allocation algorithms for orthogonal frequency division multiplexing (OFDM) communication systems are introduced. These algorithms combine low complexity greedy power allocation algorithms with a simplified maximum ratio combining (MRC) precoding technique at the transmitter for maximizing the average data throughput of OFDM communication systems. Results of computer simulations show that precoding is an effective technique for improving the throughput performance of the proposed bit and power allocation algorithms.

Conflicts of Interest

The authors declare no conflicts of interest.

Cite this paper

N. A. Odhah, M. I. Dessouky, W. Al-Hanafy and F. E. Abd El-Samie, "Low Complexity Precoded Greedy Power Allocation Algorithms for OFDM Communication Systems," Journal of Signal and Information Processing, Vol. 3 No. 2, 2012, pp. 185-191. doi: 10.4236/jsip.2012.32025.

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