Abstract
5th generation upcoming applications require an alternative multicarrier modulation (MCM) scheme to support high data rate, high bandwidth efficiency, and low impulse noise. Filter Bank Multicarrier with Offset Quadrature Amplitude Modulation (FBMC/OQAM) system is the most suitable scheme to meet this requirement for next wireless communication system. However, as an MCM, the high Peak to Average Power Ratio (PAPR) is a significant problem from which the FBMC/OQAM suffers causing reduced power efficiency. In this paper, a modified alternative signal with sequential optimization(MAS-SO) algorithm is used for PAPR reduction. The traditional alternative signal (T-AS) algorithm is suggested to reduce the PAPR of the traditional multicarrier signal. However, it did not give a satisfactory PAPR reduction and so the algorithm has been modified to provide better PAPR reduction performance with low complexity.The simulation results from the complementary cumulative distribution function (CCDF) of PAPR show that the proposed scheme can achieve about 3.45 dB PAPR performance compared to existing T-AS scheme.
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