FANG Weiwei, CHEN Yuanzhi, ZHOU Deyang. Metric-Based and Angle-Rotated Tone Reservation Scheme for PAPR Reduction in OFDM Systems[J]. Chinese Journal of Electronics, 2013, 22(4): 803-806.
Citation: FANG Weiwei, CHEN Yuanzhi, ZHOU Deyang. Metric-Based and Angle-Rotated Tone Reservation Scheme for PAPR Reduction in OFDM Systems[J]. Chinese Journal of Electronics, 2013, 22(4): 803-806.

Metric-Based and Angle-Rotated Tone Reservation Scheme for PAPR Reduction in OFDM Systems

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  • Corresponding author: FANG Weiwei, CHEN Yuanzhi, ZHOU Deyang
  • Received Date: 2012-07-01
  • Rev Recd Date: 2012-09-01
  • Publish Date: 2013-09-25
  • High Peak-to-average power ratio (PAPR) has been a crucial problem in Orthogonal frequency division multiplexing (OFDM) systems. In all PAPR reduction schemes, Tone reservation (TR) technology is considered as one of the most promising methods because of no additional distortion, no side information, and low implementation cost. For conventional TR approaches, the assigned value to reserved subcarriers just considers one peak value and this brings peak value up again easily. In this paper, a novel scheme named Metric-based angle-rotated (MBAR) for TR is presented. The scheme employs a metric to measure how much each subcarrier contributes to the output signal samples of large magnitude and then subcarriers with the largest positive metrics are selected to reduce PAPR. The simulation results show that when the reserved subcarriers number is 1.46 percent, the PAPR gain of the proposed method can achieve 0.47dB at least at the probability of 10-3.
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