Numerical Simulation and Analysis of Peak Average and Power Ratio in FBMC 5G Communication System

Abstract

Recently, as an alternative to Orthogonal Frequency Division Multiplexing (OFDM), Filter Bank Multi-Carrier (FBMC) has attracted great interest. Compared to OFDM, FBMC plans to increase frequency efficiency and low out-of-band (OOB) emissions. However, FBMC still encounters high position peak-to-average power ratio (PAPR) in OFDM systems. Some OFDM-based PAPR reduction techniques have adopted the FBMC system. In this paper, the proposed new FBMC system for PAPR reduction uses phase reordering (PR) and improved PR (MPR) techniques for OFDM systems based on its evolution. Unlike SC-FDMA (Single Carrier Frequency Division) multiple access, only DFT (Discrete Fourier Transform) spread spectrum and FBMC-OQAM (filter bank multi-carrier and offset quadrature amplitude modulation) are combined to cause only margin The PAPR (peak average) power ratio is reduced. Using the single carrier effect of DFT propagation, the IQ coefficient condition of each subcarrier is special (the corresponding quadrature phase channel is satisfied accordingly. To further increase the number of PAPRs, we generate DFT extension and ITSM conditional waveforms in FBMC and select the lowest peak power. Waveforms. Even if there are multiple candidate generations, the main calculation parts such as DFTShare and IDFT are executed only once, unlike the traditional SI (side information) based PAPR reduction procedure.