Computing the Optimal Amount of Constellation Distortion in OFDM Systems

@article{Aggarwal2007ComputingTO,
  title={Computing the Optimal Amount of Constellation Distortion in OFDM Systems},
  author={Alok Aggarwal and Erik R. Stauffer and Teresa H. Y. Meng},
  journal={2007 IEEE International Conference on Communications},
  year={2007},
  pages={2918-2923}
}
The primary disadvantage of orthogonal frequency-division multiplexing (OFDM) is the high time-domain peak-to-average power ratio (PAR) that severely limits the transmitter power efficiency. The PAR can be globally minimized by distorting the OFDM constellation subject to a constraint on the error vector magnitude (EVM). In this paper, we demonstrate that an optimal amount of EVM exists for minimizing the transmitter power consumption while maintaining a constant bit error rate (BER) at the… CONTINUE READING

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