Non-orthogonal multiple access(NOMA)is a strong contender multicarrier waveform technique for the fth generation(5G)communication *** high peak-to-average power ratio(PAPR)is a serious concern in designing the NOMA **...
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Non-orthogonal multiple access(NOMA)is a strong contender multicarrier waveform technique for the fth generation(5G)communication *** high peak-to-average power ratio(PAPR)is a serious concern in designing the NOMA ***,the arrangement of NOMA is different from the orthogonal frequency division ***,traditional reduction methods cannot be applied to NOMA.A partial transmission sequence(PTS)is commonly utilized to minimize the PAPR of the transmitting NOMA *** choice phase aspect in the PTS is the only non-linear optimization obstacle that creates a huge computational complication due to the respective non-carrying sub-blocks in the unitary NOMA *** this study,an efcient phase factor is proposed by presenting a novel bacterial foraging optimization algorithm(BFOA)for PTS(BFOA-PTS).The PAPR minimization is accomplished in a two-stage *** the initial stage,PTS is applied to the NOMA signal,resulting in the partition of the NOMA signal into an act of *** the second stage,the best phase factor is generated using *** performance of the proposed BFOA-PTS is thoroughly investigated and compared to the traditional *** simulation outcomes reveal that the BFOA-PTS efciently optimizes the PAPR performance with inconsequential *** proposed method can signicantly offer a gain of 4.1 dB and low complexity compared with the traditional OFDM.
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