Numerical Modelling and Simulation of Improved Partial Transmit Sequence for PAPR Reduction in OFDM Communication System

Abstract

AbstractWireless communication systems rely on channel capacity and peak average to power ratio (PAPR) to deliver reliable communication across wireless medium. A high peak-to-average power ratio affects both the amplifier rating in OFDM systems and the potential future contenders for 5G systems like Filter Bank Multicarrier (FBMC) and Universal Filtered Multicarrier (UFMC). Increases in wireless network users cause a fluctuation in demand for channel capacity. For fading channels, multiple input, multiple output and orthogonal frequency division multiplexing (MIMO OFDM) is a persuasive approach of improving the capacity. Channel capacity is limited by the use of power allocation methods. Because of the current capacity of the channel, we can thank the water filling power allocation mechanism. In order to reduce PAPR in OFDM systems, a technique based on enhanced partial transmit sequence must be developed, analysed, and put into use (PTS). MIMO OFDM system capacity enhancement is presented in the proposed research by applying a water filling technique to improve the OFDM system's capacity utilisation efficiency. Other current algorithms, such as selective mapping and clipping, were compared in the suggested study. The suggested algorithm's performance was also compared to other capacity-enhancing solutions. Channel capacity and the peak average to power ratio both fell by 5% in the proposed system. Cooperative network dynamics can be better understood with the help of a comprehensive research conducted in MATLAB.KeywordsOFDMMIMO OFDMPAPRSLM