On Trellis Shaping for PAR Reduction in OFDM Systems

  title={On Trellis Shaping for PAR Reduction in OFDM Systems},
  author={Trung Thanh Nguyen and Lutz H.-J. Lampe},
  journal={IEEE Transactions on Communications},
The application of trellis shaping was proposed to reduce the peak-to-average power ratio (PAR) of orthogonal frequency division multiplexing (OFDM) signals. In this letter, we review the trellis-shaping schemes presented in the literature, and we introduce modifications such as a new decoding metric and the use of sequential decoding. We conduct comprehensive complexity and performance comparisons for the different schemes, and one interesting result of this work is that, in terms of PAR… CONTINUE READING
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