Theoretical Analysis of PAPR Companding Techniques for FBMC Systems

Abstract

The offset quadrature amplitude modulation (OQAM) with filter bank multicarrier (FBMC) has turn on considerable interest in last decades over orthogonal frequency division multiplexing (OFDM) because of their a significant number of advantages. However, largest peak to average power ratio (PAPR) minimization techniques developed for OFDM systems may not be applicable directly for OQAM-FBMC systems, due to the super-imposed formation of OQAM-FBMC signals. In this article, the issue of power ratio reduction technique is address theoretically and complementary cumulative distribution function for OQAM-FBMC systems using various companding transforms are analyzed. Theoretical analysis and simulation results shows that the $$\mu$$ -law companding method is efficiently reduced PAPR among all other companding techniques.