Non-Linear Companding Techniques in Universal Filtered Multi Carrier-SLM with OFDM

Abstract

To reduce the general signal to noise ratio (SNR), the overall performance of the multi service system and reduce the PAPR (peak to average power ratio) in UFMC the usage of MIMO (multi enter and multi output) SLM technique. SLM technique is a selective level mapping in distortion much less method that is used to reduce the PAPR efficiency without growth the manner requirement and growing facts fee loss. By using an UFMC technique, a dynamic spectrum provides an less interference. This technique has better PAPR reduction performance. In existing system, there is a two technique used to reduce PAPR that is pre-coding technique and NLCT (Non-Linear Companding Technique) but in 5G it is not effective to reduce the distortion. So we move on to the UFMC(Universal Filtered Multi Carrier) using SLM technique. Simulation output shows a better variety than the proposed OFDM technique with the designed parameter like FFT size, filter lengthand bits. Various techniques are compared with this technique and showa best performance analyzed using MATLAB.