Trapezoidal companding scheme for peak-to-average power ratio reduction of OFDM signals
- 1 January 2009
- journal article
- Published by Institution of Engineering and Technology (IET) in Electronics Letters
- Vol. 45 (25), 1349-1351
- https://doi.org/10.1049/el.2009.2180
Abstract
A novel nonlinear companding scheme is proposed to reduce the peak-to-average power ratio (PAPR) of orthogonal frequency division multiplexing (OFDM) signals. This scheme can transform the original Gaussian-distributed OFDM signals into trapezoidal-distributed. Moreover, by properly choosing variable parameters of the proposed scheme, it can achieve an effective trade-off between PAPR reduction and bit error rate performance, which gives the OFDM system more design flexibility.Keywords
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