A low complexity multicarrier PAR reduction approach based on subgradient optimization
Signal Processing - Special section: Multimodal human-computer interfaces
IEEE Transactions on Signal Processing
An overview of peak-to-average power ratio reduction techniques for multicarrier transmission
IEEE Wireless Communications
SLM and PTS peak-power reduction of OFDM signals without side information
IEEE Transactions on Wireless Communications
On the Use of Hexagonal Constellation for Peak-to-Average Power Ratio Reduction of an ODFM Signal
IEEE Transactions on Wireless Communications
| Hi-index | 0.00 |
High peak-to-average power ratio (PAPR) in multi-carrier systems such as OFDM can significantly reduce power efficiency and performance. Existing methods to mitigate this problem are known in three major categories, i.e. clipping/filtering, convex optimisation and stochastic approach. In this paper, a polynomial phasing scheme is proposed to achieve maximum PAPR reduction for a multicarrier OFDM signal. Using this scheme, each subcarrier phase is adjusted by a polynomial function of the subcarrier index. The coefficients of such polynomial function can be determined at the transmitter by a search method, and can be conveyed using existing pilot tones. The scheme promising maximum PAPR reduction with no distortion to the spectral mask or loss in data rate requires little change to existing OFDM standards.