Performance Enhancement of Generalized Frequency Division Multiplexing using Zadoff-Chu Precoding Scheme
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Abstract
Nonlinearity introduced by the high power amplifier (HPA) is a major obstacle for all multicarrier systems due to their high peak to average power ratio (PAPR). GFDM may be considered as a suitable modulation scheme for 5G iwireless isystems. For ithe purpose of imaximum ipower transmission, HPA is used with GFDM system. In the proposed work, zadoff-chu precoding technique is investigated for GFDM systems to analyze the PAPR and BER performances. The simulation results show that the iPAPR of theiproposed GFDM is reduced by 4dB and 5dB as compared to conventional GFDM signal and conventional OFDM, respectively at CCDF of 10-2.
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