An active-set approach for OFDM PAR reduction via tone reservation

  title={An active-set approach for OFDM PAR reduction via tone reservation},
  author={Brian S. Krongold and Douglas L. Jones},
  journal={IEEE Transactions on Signal Processing},
Common to all orthogonal frequency division multiplexing (OFDM) systems is a large peak-to-average-power ratio (PAR), which can lead to low power efficiency and nonlinear distortion at the transmit power amplifier. Tone reservation uses other unused or reserved tones to design a peak-cancelling signal that lowers the PAR of a transmit OFDM block. In contrast to previous methods, the new active-set method proposed here converges very quickly toward a minimum-PAR solution at a lower computational… CONTINUE READING
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