ARMA companding scheme with improved symbol error rate for PAPR reduction in OFDM systems
WTS'10 Proceedings of the 9th conference on Wireless telecommunications symposium
Two new phase sequence sets for PAPR reduction in SLM-OFDM systems without side information
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In this paper, we provide the design criteria of the nonlinear companding transforms for reduction in peak-to-average power ratio (PAPR) of multi-carrier modulation (MCM) signals, which can enable the original MCM signals to be transformed into the desirable distribution. As examples, some novel nonlinear companding transforms have been proposed to transform the amplitude or power of the original MCM signals into uniform distribution, which can effectively reduce the PAPR for different modulation formats and subcarrier sizes without any complexity increase and bandwidth expansion. It has been shown by computer simulations that the proposed schemes can significantly improve the performance of MCM systems including bit-error-rate and PAPR reduction.