A Novel Hybrid PAPR Reduction Technique for NOMA and FBMC System and its Impact in Power Amplifiers

Abstract

Non-orthogonal multiple access (NOMA) and filter bank multi carrier (FBMC) based on multi-carrier techniques are two best transmission schemes candidates for modern mobile communication systems. High peak to average power ratio (PAPR) is regarded as an important problem in implementing NOMA and FBMC systems. Several PAPR reduction techniques for FBMC have been presented in the literature review, but PAPR reduction techniques in NOMA are not explored so far. In that regard, there are several drawbacks of reduction methods presented in the literature. The disadvantages include a decrease in performance of bit error rate (BER), design complexity, minimum bit rate. In the present study, we have examined and compared the performance of the reduction techniques and proposed a selective mapping circular transformation hybrid (SLMCT) method. It is observed that SLMCT is the best method to enhance the PAPR and BER performance and minimizes the complexity of PTS technique. Further BER, PAPR, net gain, power reduction and CCDF parameters are examined. Finally, it is concluded that the performance of the proposed hybrid method is better than the existed peak power minimize techniques and plays an important role, when the objective is to maximize the performance of both PAPR and BER.