PAPR and Spectrum Analysis of 4G and 5G Techniques

GFDM is a method of wireless communication that produces ISMCI which will influence the performance of Symbol Error Rate when contrasted with an Orthogonal Frequency Division Multiplexing. In GFDM a single cyclic prefix (CP) is embedded for the whole block, but in case of OFDM cyclic prefix embedded for each transmitted symbol. It will boost the system spectral efficiency. Additionally, in Wavelet based GFDM, there is no need of cyclic prefix, that will further boost up the efficiency of spectrum. GFDM is better technique because it has low PAPR, which helps in low power consumption. Power spectral density (PSD) of GFDM is less this shows GFDM provides lesser leakage of energy on the side lobes which helps in reduction of OOB radiation. Wavelet based GFDM is good method for the needs of future wireless communication. Meyer wavelet has overall better spectral efficiency and low PAPR as compared to other techniques.